![Kees Cook](/assets/img/avatar_default.png)
The vzalloc() function has no 2-factor argument form, so multiplication factors need to be wrapped in array_size(). This patch replaces cases of: vzalloc(a * b) with: vzalloc(array_size(a, b)) as well as handling cases of: vzalloc(a * b * c) with: vzalloc(array3_size(a, b, c)) This does, however, attempt to ignore constant size factors like: vzalloc(4 * 1024) though any constants defined via macros get caught up in the conversion. Any factors with a sizeof() of "unsigned char", "char", and "u8" were dropped, since they're redundant. The Coccinelle script used for this was: // Fix redundant parens around sizeof(). @@ type TYPE; expression THING, E; @@ ( vzalloc( - (sizeof(TYPE)) * E + sizeof(TYPE) * E , ...) | vzalloc( - (sizeof(THING)) * E + sizeof(THING) * E , ...) ) // Drop single-byte sizes and redundant parens. @@ expression COUNT; typedef u8; typedef __u8; @@ ( vzalloc( - sizeof(u8) * (COUNT) + COUNT , ...) | vzalloc( - sizeof(__u8) * (COUNT) + COUNT , ...) | vzalloc( - sizeof(char) * (COUNT) + COUNT , ...) | vzalloc( - sizeof(unsigned char) * (COUNT) + COUNT , ...) | vzalloc( - sizeof(u8) * COUNT + COUNT , ...) | vzalloc( - sizeof(__u8) * COUNT + COUNT , ...) | vzalloc( - sizeof(char) * COUNT + COUNT , ...) | vzalloc( - sizeof(unsigned char) * COUNT + COUNT , ...) ) // 2-factor product with sizeof(type/expression) and identifier or constant. @@ type TYPE; expression THING; identifier COUNT_ID; constant COUNT_CONST; @@ ( vzalloc( - sizeof(TYPE) * (COUNT_ID) + array_size(COUNT_ID, sizeof(TYPE)) , ...) | vzalloc( - sizeof(TYPE) * COUNT_ID + array_size(COUNT_ID, sizeof(TYPE)) , ...) | vzalloc( - sizeof(TYPE) * (COUNT_CONST) + array_size(COUNT_CONST, sizeof(TYPE)) , ...) | vzalloc( - sizeof(TYPE) * COUNT_CONST + array_size(COUNT_CONST, sizeof(TYPE)) , ...) | vzalloc( - sizeof(THING) * (COUNT_ID) + array_size(COUNT_ID, sizeof(THING)) , ...) | vzalloc( - sizeof(THING) * COUNT_ID + array_size(COUNT_ID, sizeof(THING)) , ...) | vzalloc( - sizeof(THING) * (COUNT_CONST) + array_size(COUNT_CONST, sizeof(THING)) , ...) | vzalloc( - sizeof(THING) * COUNT_CONST + array_size(COUNT_CONST, sizeof(THING)) , ...) ) // 2-factor product, only identifiers. @@ identifier SIZE, COUNT; @@ vzalloc( - SIZE * COUNT + array_size(COUNT, SIZE) , ...) // 3-factor product with 1 sizeof(type) or sizeof(expression), with // redundant parens removed. @@ expression THING; identifier STRIDE, COUNT; type TYPE; @@ ( vzalloc( - sizeof(TYPE) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | vzalloc( - sizeof(TYPE) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | vzalloc( - sizeof(TYPE) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | vzalloc( - sizeof(TYPE) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | vzalloc( - sizeof(THING) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | vzalloc( - sizeof(THING) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | vzalloc( - sizeof(THING) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | vzalloc( - sizeof(THING) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) ) // 3-factor product with 2 sizeof(variable), with redundant parens removed. @@ expression THING1, THING2; identifier COUNT; type TYPE1, TYPE2; @@ ( vzalloc( - sizeof(TYPE1) * sizeof(TYPE2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | vzalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | vzalloc( - sizeof(THING1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | vzalloc( - sizeof(THING1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | vzalloc( - sizeof(TYPE1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) | vzalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) ) // 3-factor product, only identifiers, with redundant parens removed. @@ identifier STRIDE, SIZE, COUNT; @@ ( vzalloc( - (COUNT) * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | vzalloc( - COUNT * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | vzalloc( - COUNT * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | vzalloc( - (COUNT) * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | vzalloc( - COUNT * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | vzalloc( - (COUNT) * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | vzalloc( - (COUNT) * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | vzalloc( - COUNT * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) ) // Any remaining multi-factor products, first at least 3-factor products // when they're not all constants... @@ expression E1, E2, E3; constant C1, C2, C3; @@ ( vzalloc(C1 * C2 * C3, ...) | vzalloc( - E1 * E2 * E3 + array3_size(E1, E2, E3) , ...) ) // And then all remaining 2 factors products when they're not all constants. @@ expression E1, E2; constant C1, C2; @@ ( vzalloc(C1 * C2, ...) | vzalloc( - E1 * E2 + array_size(E1, E2) , ...) ) Signed-off-by: Kees Cook <keescook@chromium.org>
4898 lines
143 KiB
C
4898 lines
143 KiB
C
/*
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* Linux MegaRAID driver for SAS based RAID controllers
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*
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* Copyright (c) 2009-2013 LSI Corporation
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* Copyright (c) 2013-2014 Avago Technologies
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* FILE: megaraid_sas_fusion.c
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*
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* Authors: Avago Technologies
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* Sumant Patro
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* Adam Radford
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* Kashyap Desai <kashyap.desai@avagotech.com>
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* Sumit Saxena <sumit.saxena@avagotech.com>
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*
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* Send feedback to: megaraidlinux.pdl@avagotech.com
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*
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* Mail to: Avago Technologies, 350 West Trimble Road, Building 90,
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* San Jose, California 95131
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*/
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#include <linux/kernel.h>
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#include <linux/types.h>
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#include <linux/pci.h>
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#include <linux/list.h>
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#include <linux/moduleparam.h>
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#include <linux/module.h>
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#include <linux/spinlock.h>
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#include <linux/interrupt.h>
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#include <linux/delay.h>
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#include <linux/uio.h>
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#include <linux/uaccess.h>
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#include <linux/fs.h>
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#include <linux/compat.h>
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#include <linux/blkdev.h>
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#include <linux/mutex.h>
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#include <linux/poll.h>
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#include <linux/vmalloc.h>
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#include <scsi/scsi.h>
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#include <scsi/scsi_cmnd.h>
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#include <scsi/scsi_device.h>
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#include <scsi/scsi_host.h>
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#include <scsi/scsi_dbg.h>
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#include <linux/dmi.h>
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#include "megaraid_sas_fusion.h"
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#include "megaraid_sas.h"
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extern void megasas_free_cmds(struct megasas_instance *instance);
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extern struct megasas_cmd *megasas_get_cmd(struct megasas_instance
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*instance);
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extern void
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megasas_complete_cmd(struct megasas_instance *instance,
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struct megasas_cmd *cmd, u8 alt_status);
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int
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wait_and_poll(struct megasas_instance *instance, struct megasas_cmd *cmd,
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int seconds);
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void
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megasas_return_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd);
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int megasas_alloc_cmds(struct megasas_instance *instance);
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int
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megasas_clear_intr_fusion(struct megasas_register_set __iomem *regs);
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int
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megasas_issue_polled(struct megasas_instance *instance,
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struct megasas_cmd *cmd);
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void
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megasas_check_and_restore_queue_depth(struct megasas_instance *instance);
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int megasas_transition_to_ready(struct megasas_instance *instance, int ocr);
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void megaraid_sas_kill_hba(struct megasas_instance *instance);
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extern u32 megasas_dbg_lvl;
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int megasas_sriov_start_heartbeat(struct megasas_instance *instance,
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int initial);
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void megasas_start_timer(struct megasas_instance *instance);
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extern struct megasas_mgmt_info megasas_mgmt_info;
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extern unsigned int resetwaittime;
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extern unsigned int dual_qdepth_disable;
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static void megasas_free_rdpq_fusion(struct megasas_instance *instance);
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static void megasas_free_reply_fusion(struct megasas_instance *instance);
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static inline
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void megasas_configure_queue_sizes(struct megasas_instance *instance);
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/**
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* megasas_check_same_4gb_region - check if allocation
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* crosses same 4GB boundary or not
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* @instance - adapter's soft instance
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* start_addr - start address of DMA allocation
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* size - size of allocation in bytes
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* return - true : allocation does not cross same
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* 4GB boundary
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* false: allocation crosses same
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* 4GB boundary
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*/
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static inline bool megasas_check_same_4gb_region
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(struct megasas_instance *instance, dma_addr_t start_addr, size_t size)
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{
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dma_addr_t end_addr;
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end_addr = start_addr + size;
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if (upper_32_bits(start_addr) != upper_32_bits(end_addr)) {
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dev_err(&instance->pdev->dev,
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"Failed to get same 4GB boundary: start_addr: 0x%llx end_addr: 0x%llx\n",
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(unsigned long long)start_addr,
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(unsigned long long)end_addr);
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return false;
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}
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return true;
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}
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/**
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* megasas_enable_intr_fusion - Enables interrupts
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* @regs: MFI register set
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*/
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void
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megasas_enable_intr_fusion(struct megasas_instance *instance)
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{
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struct megasas_register_set __iomem *regs;
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regs = instance->reg_set;
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instance->mask_interrupts = 0;
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/* For Thunderbolt/Invader also clear intr on enable */
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writel(~0, ®s->outbound_intr_status);
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readl(®s->outbound_intr_status);
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writel(~MFI_FUSION_ENABLE_INTERRUPT_MASK, &(regs)->outbound_intr_mask);
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/* Dummy readl to force pci flush */
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readl(®s->outbound_intr_mask);
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}
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/**
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* megasas_disable_intr_fusion - Disables interrupt
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* @regs: MFI register set
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*/
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void
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megasas_disable_intr_fusion(struct megasas_instance *instance)
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{
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u32 mask = 0xFFFFFFFF;
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u32 status;
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struct megasas_register_set __iomem *regs;
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regs = instance->reg_set;
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instance->mask_interrupts = 1;
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writel(mask, ®s->outbound_intr_mask);
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/* Dummy readl to force pci flush */
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status = readl(®s->outbound_intr_mask);
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}
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int
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megasas_clear_intr_fusion(struct megasas_register_set __iomem *regs)
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{
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u32 status;
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/*
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* Check if it is our interrupt
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*/
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status = readl(®s->outbound_intr_status);
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if (status & 1) {
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writel(status, ®s->outbound_intr_status);
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readl(®s->outbound_intr_status);
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return 1;
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}
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if (!(status & MFI_FUSION_ENABLE_INTERRUPT_MASK))
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return 0;
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return 1;
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}
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/**
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* megasas_get_cmd_fusion - Get a command from the free pool
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* @instance: Adapter soft state
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*
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* Returns a blk_tag indexed mpt frame
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*/
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inline struct megasas_cmd_fusion *megasas_get_cmd_fusion(struct megasas_instance
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*instance, u32 blk_tag)
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{
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struct fusion_context *fusion;
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fusion = instance->ctrl_context;
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return fusion->cmd_list[blk_tag];
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}
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/**
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* megasas_return_cmd_fusion - Return a cmd to free command pool
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* @instance: Adapter soft state
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* @cmd: Command packet to be returned to free command pool
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*/
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inline void megasas_return_cmd_fusion(struct megasas_instance *instance,
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struct megasas_cmd_fusion *cmd)
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{
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cmd->scmd = NULL;
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memset(cmd->io_request, 0, MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE);
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cmd->r1_alt_dev_handle = MR_DEVHANDLE_INVALID;
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cmd->cmd_completed = false;
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}
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/**
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* megasas_fire_cmd_fusion - Sends command to the FW
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* @instance: Adapter soft state
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* @req_desc: 64bit Request descriptor
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*
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* Perform PCI Write.
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*/
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static void
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megasas_fire_cmd_fusion(struct megasas_instance *instance,
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union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc)
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{
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#if defined(writeq) && defined(CONFIG_64BIT)
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u64 req_data = (((u64)le32_to_cpu(req_desc->u.high) << 32) |
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le32_to_cpu(req_desc->u.low));
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writeq(req_data, &instance->reg_set->inbound_low_queue_port);
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#else
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unsigned long flags;
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spin_lock_irqsave(&instance->hba_lock, flags);
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writel(le32_to_cpu(req_desc->u.low),
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&instance->reg_set->inbound_low_queue_port);
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writel(le32_to_cpu(req_desc->u.high),
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&instance->reg_set->inbound_high_queue_port);
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mmiowb();
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spin_unlock_irqrestore(&instance->hba_lock, flags);
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#endif
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}
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/**
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* megasas_fusion_update_can_queue - Do all Adapter Queue depth related calculations here
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* @instance: Adapter soft state
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* fw_boot_context: Whether this function called during probe or after OCR
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*
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* This function is only for fusion controllers.
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* Update host can queue, if firmware downgrade max supported firmware commands.
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* Firmware upgrade case will be skiped because underlying firmware has
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* more resource than exposed to the OS.
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*
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*/
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static void
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megasas_fusion_update_can_queue(struct megasas_instance *instance, int fw_boot_context)
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{
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u16 cur_max_fw_cmds = 0;
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u16 ldio_threshold = 0;
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struct megasas_register_set __iomem *reg_set;
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reg_set = instance->reg_set;
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/* ventura FW does not fill outbound_scratch_pad_3 with queue depth */
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if (instance->adapter_type < VENTURA_SERIES)
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cur_max_fw_cmds =
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readl(&instance->reg_set->outbound_scratch_pad_3) & 0x00FFFF;
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if (dual_qdepth_disable || !cur_max_fw_cmds)
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cur_max_fw_cmds = instance->instancet->read_fw_status_reg(reg_set) & 0x00FFFF;
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else
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ldio_threshold =
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(instance->instancet->read_fw_status_reg(reg_set) & 0x00FFFF) - MEGASAS_FUSION_IOCTL_CMDS;
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dev_info(&instance->pdev->dev,
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"Current firmware supports maximum commands: %d\t LDIO threshold: %d\n",
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cur_max_fw_cmds, ldio_threshold);
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if (fw_boot_context == OCR_CONTEXT) {
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cur_max_fw_cmds = cur_max_fw_cmds - 1;
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if (cur_max_fw_cmds < instance->max_fw_cmds) {
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instance->cur_can_queue =
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cur_max_fw_cmds - (MEGASAS_FUSION_INTERNAL_CMDS +
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MEGASAS_FUSION_IOCTL_CMDS);
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instance->host->can_queue = instance->cur_can_queue;
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instance->ldio_threshold = ldio_threshold;
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}
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} else {
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instance->max_fw_cmds = cur_max_fw_cmds;
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instance->ldio_threshold = ldio_threshold;
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if (reset_devices)
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instance->max_fw_cmds = min(instance->max_fw_cmds,
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(u16)MEGASAS_KDUMP_QUEUE_DEPTH);
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/*
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* Reduce the max supported cmds by 1. This is to ensure that the
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* reply_q_sz (1 more than the max cmd that driver may send)
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* does not exceed max cmds that the FW can support
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*/
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instance->max_fw_cmds = instance->max_fw_cmds-1;
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}
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}
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/**
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* megasas_free_cmds_fusion - Free all the cmds in the free cmd pool
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* @instance: Adapter soft state
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*/
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void
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megasas_free_cmds_fusion(struct megasas_instance *instance)
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{
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int i;
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struct fusion_context *fusion = instance->ctrl_context;
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struct megasas_cmd_fusion *cmd;
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if (fusion->sense)
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dma_pool_free(fusion->sense_dma_pool, fusion->sense,
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fusion->sense_phys_addr);
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/* SG */
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if (fusion->cmd_list) {
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for (i = 0; i < instance->max_mpt_cmds; i++) {
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cmd = fusion->cmd_list[i];
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if (cmd) {
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if (cmd->sg_frame)
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dma_pool_free(fusion->sg_dma_pool,
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cmd->sg_frame,
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cmd->sg_frame_phys_addr);
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}
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kfree(cmd);
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}
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kfree(fusion->cmd_list);
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}
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if (fusion->sg_dma_pool) {
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dma_pool_destroy(fusion->sg_dma_pool);
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fusion->sg_dma_pool = NULL;
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}
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if (fusion->sense_dma_pool) {
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dma_pool_destroy(fusion->sense_dma_pool);
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fusion->sense_dma_pool = NULL;
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}
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/* Reply Frame, Desc*/
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if (instance->is_rdpq)
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megasas_free_rdpq_fusion(instance);
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else
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megasas_free_reply_fusion(instance);
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/* Request Frame, Desc*/
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if (fusion->req_frames_desc)
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dma_free_coherent(&instance->pdev->dev,
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fusion->request_alloc_sz, fusion->req_frames_desc,
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fusion->req_frames_desc_phys);
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if (fusion->io_request_frames)
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dma_pool_free(fusion->io_request_frames_pool,
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fusion->io_request_frames,
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fusion->io_request_frames_phys);
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if (fusion->io_request_frames_pool) {
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dma_pool_destroy(fusion->io_request_frames_pool);
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fusion->io_request_frames_pool = NULL;
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}
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}
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/**
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* megasas_create_sg_sense_fusion - Creates DMA pool for cmd frames
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* @instance: Adapter soft state
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*
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*/
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static int megasas_create_sg_sense_fusion(struct megasas_instance *instance)
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{
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int i;
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u16 max_cmd;
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struct fusion_context *fusion;
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struct megasas_cmd_fusion *cmd;
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int sense_sz;
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u32 offset;
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fusion = instance->ctrl_context;
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max_cmd = instance->max_fw_cmds;
|
|
sense_sz = instance->max_mpt_cmds * SCSI_SENSE_BUFFERSIZE;
|
|
|
|
fusion->sg_dma_pool =
|
|
dma_pool_create("mr_sg", &instance->pdev->dev,
|
|
instance->max_chain_frame_sz,
|
|
MR_DEFAULT_NVME_PAGE_SIZE, 0);
|
|
/* SCSI_SENSE_BUFFERSIZE = 96 bytes */
|
|
fusion->sense_dma_pool =
|
|
dma_pool_create("mr_sense", &instance->pdev->dev,
|
|
sense_sz, 64, 0);
|
|
|
|
if (!fusion->sense_dma_pool || !fusion->sg_dma_pool) {
|
|
dev_err(&instance->pdev->dev,
|
|
"Failed from %s %d\n", __func__, __LINE__);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
fusion->sense = dma_pool_alloc(fusion->sense_dma_pool,
|
|
GFP_KERNEL, &fusion->sense_phys_addr);
|
|
if (!fusion->sense) {
|
|
dev_err(&instance->pdev->dev,
|
|
"failed from %s %d\n", __func__, __LINE__);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
/* sense buffer, request frame and reply desc pool requires to be in
|
|
* same 4 gb region. Below function will check this.
|
|
* In case of failure, new pci pool will be created with updated
|
|
* alignment.
|
|
* Older allocation and pool will be destroyed.
|
|
* Alignment will be used such a way that next allocation if success,
|
|
* will always meet same 4gb region requirement.
|
|
* Actual requirement is not alignment, but we need start and end of
|
|
* DMA address must have same upper 32 bit address.
|
|
*/
|
|
|
|
if (!megasas_check_same_4gb_region(instance, fusion->sense_phys_addr,
|
|
sense_sz)) {
|
|
dma_pool_free(fusion->sense_dma_pool, fusion->sense,
|
|
fusion->sense_phys_addr);
|
|
fusion->sense = NULL;
|
|
dma_pool_destroy(fusion->sense_dma_pool);
|
|
|
|
fusion->sense_dma_pool =
|
|
dma_pool_create("mr_sense_align", &instance->pdev->dev,
|
|
sense_sz, roundup_pow_of_two(sense_sz),
|
|
0);
|
|
if (!fusion->sense_dma_pool) {
|
|
dev_err(&instance->pdev->dev,
|
|
"Failed from %s %d\n", __func__, __LINE__);
|
|
return -ENOMEM;
|
|
}
|
|
fusion->sense = dma_pool_alloc(fusion->sense_dma_pool,
|
|
GFP_KERNEL,
|
|
&fusion->sense_phys_addr);
|
|
if (!fusion->sense) {
|
|
dev_err(&instance->pdev->dev,
|
|
"failed from %s %d\n", __func__, __LINE__);
|
|
return -ENOMEM;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Allocate and attach a frame to each of the commands in cmd_list
|
|
*/
|
|
for (i = 0; i < max_cmd; i++) {
|
|
cmd = fusion->cmd_list[i];
|
|
cmd->sg_frame = dma_pool_alloc(fusion->sg_dma_pool,
|
|
GFP_KERNEL, &cmd->sg_frame_phys_addr);
|
|
|
|
offset = SCSI_SENSE_BUFFERSIZE * i;
|
|
cmd->sense = (u8 *)fusion->sense + offset;
|
|
cmd->sense_phys_addr = fusion->sense_phys_addr + offset;
|
|
|
|
if (!cmd->sg_frame) {
|
|
dev_err(&instance->pdev->dev,
|
|
"Failed from %s %d\n", __func__, __LINE__);
|
|
return -ENOMEM;
|
|
}
|
|
}
|
|
|
|
/* create sense buffer for the raid 1/10 fp */
|
|
for (i = max_cmd; i < instance->max_mpt_cmds; i++) {
|
|
cmd = fusion->cmd_list[i];
|
|
offset = SCSI_SENSE_BUFFERSIZE * i;
|
|
cmd->sense = (u8 *)fusion->sense + offset;
|
|
cmd->sense_phys_addr = fusion->sense_phys_addr + offset;
|
|
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
megasas_alloc_cmdlist_fusion(struct megasas_instance *instance)
|
|
{
|
|
u32 max_mpt_cmd, i, j;
|
|
struct fusion_context *fusion;
|
|
|
|
fusion = instance->ctrl_context;
|
|
|
|
max_mpt_cmd = instance->max_mpt_cmds;
|
|
|
|
/*
|
|
* fusion->cmd_list is an array of struct megasas_cmd_fusion pointers.
|
|
* Allocate the dynamic array first and then allocate individual
|
|
* commands.
|
|
*/
|
|
fusion->cmd_list =
|
|
kcalloc(max_mpt_cmd, sizeof(struct megasas_cmd_fusion *),
|
|
GFP_KERNEL);
|
|
if (!fusion->cmd_list) {
|
|
dev_err(&instance->pdev->dev,
|
|
"Failed from %s %d\n", __func__, __LINE__);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
for (i = 0; i < max_mpt_cmd; i++) {
|
|
fusion->cmd_list[i] = kzalloc(sizeof(struct megasas_cmd_fusion),
|
|
GFP_KERNEL);
|
|
if (!fusion->cmd_list[i]) {
|
|
for (j = 0; j < i; j++)
|
|
kfree(fusion->cmd_list[j]);
|
|
kfree(fusion->cmd_list);
|
|
dev_err(&instance->pdev->dev,
|
|
"Failed from %s %d\n", __func__, __LINE__);
|
|
return -ENOMEM;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
int
|
|
megasas_alloc_request_fusion(struct megasas_instance *instance)
|
|
{
|
|
struct fusion_context *fusion;
|
|
|
|
fusion = instance->ctrl_context;
|
|
|
|
retry_alloc:
|
|
fusion->io_request_frames_pool =
|
|
dma_pool_create("mr_ioreq", &instance->pdev->dev,
|
|
fusion->io_frames_alloc_sz, 16, 0);
|
|
|
|
if (!fusion->io_request_frames_pool) {
|
|
dev_err(&instance->pdev->dev,
|
|
"Failed from %s %d\n", __func__, __LINE__);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
fusion->io_request_frames =
|
|
dma_pool_alloc(fusion->io_request_frames_pool,
|
|
GFP_KERNEL, &fusion->io_request_frames_phys);
|
|
if (!fusion->io_request_frames) {
|
|
if (instance->max_fw_cmds >= (MEGASAS_REDUCE_QD_COUNT * 2)) {
|
|
instance->max_fw_cmds -= MEGASAS_REDUCE_QD_COUNT;
|
|
dma_pool_destroy(fusion->io_request_frames_pool);
|
|
megasas_configure_queue_sizes(instance);
|
|
goto retry_alloc;
|
|
} else {
|
|
dev_err(&instance->pdev->dev,
|
|
"Failed from %s %d\n", __func__, __LINE__);
|
|
return -ENOMEM;
|
|
}
|
|
}
|
|
|
|
if (!megasas_check_same_4gb_region(instance,
|
|
fusion->io_request_frames_phys,
|
|
fusion->io_frames_alloc_sz)) {
|
|
dma_pool_free(fusion->io_request_frames_pool,
|
|
fusion->io_request_frames,
|
|
fusion->io_request_frames_phys);
|
|
fusion->io_request_frames = NULL;
|
|
dma_pool_destroy(fusion->io_request_frames_pool);
|
|
|
|
fusion->io_request_frames_pool =
|
|
dma_pool_create("mr_ioreq_align",
|
|
&instance->pdev->dev,
|
|
fusion->io_frames_alloc_sz,
|
|
roundup_pow_of_two(fusion->io_frames_alloc_sz),
|
|
0);
|
|
|
|
if (!fusion->io_request_frames_pool) {
|
|
dev_err(&instance->pdev->dev,
|
|
"Failed from %s %d\n", __func__, __LINE__);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
fusion->io_request_frames =
|
|
dma_pool_alloc(fusion->io_request_frames_pool,
|
|
GFP_KERNEL,
|
|
&fusion->io_request_frames_phys);
|
|
|
|
if (!fusion->io_request_frames) {
|
|
dev_err(&instance->pdev->dev,
|
|
"Failed from %s %d\n", __func__, __LINE__);
|
|
return -ENOMEM;
|
|
}
|
|
}
|
|
|
|
fusion->req_frames_desc =
|
|
dma_alloc_coherent(&instance->pdev->dev,
|
|
fusion->request_alloc_sz,
|
|
&fusion->req_frames_desc_phys, GFP_KERNEL);
|
|
if (!fusion->req_frames_desc) {
|
|
dev_err(&instance->pdev->dev,
|
|
"Failed from %s %d\n", __func__, __LINE__);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
megasas_alloc_reply_fusion(struct megasas_instance *instance)
|
|
{
|
|
int i, count;
|
|
struct fusion_context *fusion;
|
|
union MPI2_REPLY_DESCRIPTORS_UNION *reply_desc;
|
|
fusion = instance->ctrl_context;
|
|
|
|
count = instance->msix_vectors > 0 ? instance->msix_vectors : 1;
|
|
fusion->reply_frames_desc_pool =
|
|
dma_pool_create("mr_reply", &instance->pdev->dev,
|
|
fusion->reply_alloc_sz * count, 16, 0);
|
|
|
|
if (!fusion->reply_frames_desc_pool) {
|
|
dev_err(&instance->pdev->dev,
|
|
"Failed from %s %d\n", __func__, __LINE__);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
fusion->reply_frames_desc[0] =
|
|
dma_pool_alloc(fusion->reply_frames_desc_pool,
|
|
GFP_KERNEL, &fusion->reply_frames_desc_phys[0]);
|
|
if (!fusion->reply_frames_desc[0]) {
|
|
dev_err(&instance->pdev->dev,
|
|
"Failed from %s %d\n", __func__, __LINE__);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
if (!megasas_check_same_4gb_region(instance,
|
|
fusion->reply_frames_desc_phys[0],
|
|
(fusion->reply_alloc_sz * count))) {
|
|
dma_pool_free(fusion->reply_frames_desc_pool,
|
|
fusion->reply_frames_desc[0],
|
|
fusion->reply_frames_desc_phys[0]);
|
|
fusion->reply_frames_desc[0] = NULL;
|
|
dma_pool_destroy(fusion->reply_frames_desc_pool);
|
|
|
|
fusion->reply_frames_desc_pool =
|
|
dma_pool_create("mr_reply_align",
|
|
&instance->pdev->dev,
|
|
fusion->reply_alloc_sz * count,
|
|
roundup_pow_of_two(fusion->reply_alloc_sz * count),
|
|
0);
|
|
|
|
if (!fusion->reply_frames_desc_pool) {
|
|
dev_err(&instance->pdev->dev,
|
|
"Failed from %s %d\n", __func__, __LINE__);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
fusion->reply_frames_desc[0] =
|
|
dma_pool_alloc(fusion->reply_frames_desc_pool,
|
|
GFP_KERNEL,
|
|
&fusion->reply_frames_desc_phys[0]);
|
|
|
|
if (!fusion->reply_frames_desc[0]) {
|
|
dev_err(&instance->pdev->dev,
|
|
"Failed from %s %d\n", __func__, __LINE__);
|
|
return -ENOMEM;
|
|
}
|
|
}
|
|
|
|
reply_desc = fusion->reply_frames_desc[0];
|
|
for (i = 0; i < fusion->reply_q_depth * count; i++, reply_desc++)
|
|
reply_desc->Words = cpu_to_le64(ULLONG_MAX);
|
|
|
|
/* This is not a rdpq mode, but driver still populate
|
|
* reply_frame_desc array to use same msix index in ISR path.
|
|
*/
|
|
for (i = 0; i < (count - 1); i++)
|
|
fusion->reply_frames_desc[i + 1] =
|
|
fusion->reply_frames_desc[i] +
|
|
(fusion->reply_alloc_sz)/sizeof(union MPI2_REPLY_DESCRIPTORS_UNION);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
megasas_alloc_rdpq_fusion(struct megasas_instance *instance)
|
|
{
|
|
int i, j, k, msix_count;
|
|
struct fusion_context *fusion;
|
|
union MPI2_REPLY_DESCRIPTORS_UNION *reply_desc;
|
|
union MPI2_REPLY_DESCRIPTORS_UNION *rdpq_chunk_virt[RDPQ_MAX_CHUNK_COUNT];
|
|
dma_addr_t rdpq_chunk_phys[RDPQ_MAX_CHUNK_COUNT];
|
|
u8 dma_alloc_count, abs_index;
|
|
u32 chunk_size, array_size, offset;
|
|
|
|
fusion = instance->ctrl_context;
|
|
chunk_size = fusion->reply_alloc_sz * RDPQ_MAX_INDEX_IN_ONE_CHUNK;
|
|
array_size = sizeof(struct MPI2_IOC_INIT_RDPQ_ARRAY_ENTRY) *
|
|
MAX_MSIX_QUEUES_FUSION;
|
|
|
|
fusion->rdpq_virt = pci_zalloc_consistent(instance->pdev, array_size,
|
|
&fusion->rdpq_phys);
|
|
if (!fusion->rdpq_virt) {
|
|
dev_err(&instance->pdev->dev,
|
|
"Failed from %s %d\n", __func__, __LINE__);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
msix_count = instance->msix_vectors > 0 ? instance->msix_vectors : 1;
|
|
|
|
fusion->reply_frames_desc_pool = dma_pool_create("mr_rdpq",
|
|
&instance->pdev->dev,
|
|
chunk_size, 16, 0);
|
|
fusion->reply_frames_desc_pool_align =
|
|
dma_pool_create("mr_rdpq_align",
|
|
&instance->pdev->dev,
|
|
chunk_size,
|
|
roundup_pow_of_two(chunk_size),
|
|
0);
|
|
|
|
if (!fusion->reply_frames_desc_pool ||
|
|
!fusion->reply_frames_desc_pool_align) {
|
|
dev_err(&instance->pdev->dev,
|
|
"Failed from %s %d\n", __func__, __LINE__);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
/*
|
|
* For INVADER_SERIES each set of 8 reply queues(0-7, 8-15, ..) and
|
|
* VENTURA_SERIES each set of 16 reply queues(0-15, 16-31, ..) should be
|
|
* within 4GB boundary and also reply queues in a set must have same
|
|
* upper 32-bits in their memory address. so here driver is allocating the
|
|
* DMA'able memory for reply queues according. Driver uses limitation of
|
|
* VENTURA_SERIES to manage INVADER_SERIES as well.
|
|
*/
|
|
dma_alloc_count = DIV_ROUND_UP(msix_count, RDPQ_MAX_INDEX_IN_ONE_CHUNK);
|
|
|
|
for (i = 0; i < dma_alloc_count; i++) {
|
|
rdpq_chunk_virt[i] =
|
|
dma_pool_alloc(fusion->reply_frames_desc_pool,
|
|
GFP_KERNEL, &rdpq_chunk_phys[i]);
|
|
if (!rdpq_chunk_virt[i]) {
|
|
dev_err(&instance->pdev->dev,
|
|
"Failed from %s %d\n", __func__, __LINE__);
|
|
return -ENOMEM;
|
|
}
|
|
/* reply desc pool requires to be in same 4 gb region.
|
|
* Below function will check this.
|
|
* In case of failure, new pci pool will be created with updated
|
|
* alignment.
|
|
* For RDPQ buffers, driver always allocate two separate pci pool.
|
|
* Alignment will be used such a way that next allocation if
|
|
* success, will always meet same 4gb region requirement.
|
|
* rdpq_tracker keep track of each buffer's physical,
|
|
* virtual address and pci pool descriptor. It will help driver
|
|
* while freeing the resources.
|
|
*
|
|
*/
|
|
if (!megasas_check_same_4gb_region(instance, rdpq_chunk_phys[i],
|
|
chunk_size)) {
|
|
dma_pool_free(fusion->reply_frames_desc_pool,
|
|
rdpq_chunk_virt[i],
|
|
rdpq_chunk_phys[i]);
|
|
|
|
rdpq_chunk_virt[i] =
|
|
dma_pool_alloc(fusion->reply_frames_desc_pool_align,
|
|
GFP_KERNEL, &rdpq_chunk_phys[i]);
|
|
if (!rdpq_chunk_virt[i]) {
|
|
dev_err(&instance->pdev->dev,
|
|
"Failed from %s %d\n",
|
|
__func__, __LINE__);
|
|
return -ENOMEM;
|
|
}
|
|
fusion->rdpq_tracker[i].dma_pool_ptr =
|
|
fusion->reply_frames_desc_pool_align;
|
|
} else {
|
|
fusion->rdpq_tracker[i].dma_pool_ptr =
|
|
fusion->reply_frames_desc_pool;
|
|
}
|
|
|
|
fusion->rdpq_tracker[i].pool_entry_phys = rdpq_chunk_phys[i];
|
|
fusion->rdpq_tracker[i].pool_entry_virt = rdpq_chunk_virt[i];
|
|
}
|
|
|
|
for (k = 0; k < dma_alloc_count; k++) {
|
|
for (i = 0; i < RDPQ_MAX_INDEX_IN_ONE_CHUNK; i++) {
|
|
abs_index = (k * RDPQ_MAX_INDEX_IN_ONE_CHUNK) + i;
|
|
|
|
if (abs_index == msix_count)
|
|
break;
|
|
offset = fusion->reply_alloc_sz * i;
|
|
fusion->rdpq_virt[abs_index].RDPQBaseAddress =
|
|
cpu_to_le64(rdpq_chunk_phys[k] + offset);
|
|
fusion->reply_frames_desc_phys[abs_index] =
|
|
rdpq_chunk_phys[k] + offset;
|
|
fusion->reply_frames_desc[abs_index] =
|
|
(union MPI2_REPLY_DESCRIPTORS_UNION *)((u8 *)rdpq_chunk_virt[k] + offset);
|
|
|
|
reply_desc = fusion->reply_frames_desc[abs_index];
|
|
for (j = 0; j < fusion->reply_q_depth; j++, reply_desc++)
|
|
reply_desc->Words = ULLONG_MAX;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
megasas_free_rdpq_fusion(struct megasas_instance *instance) {
|
|
|
|
int i;
|
|
struct fusion_context *fusion;
|
|
|
|
fusion = instance->ctrl_context;
|
|
|
|
for (i = 0; i < RDPQ_MAX_CHUNK_COUNT; i++) {
|
|
if (fusion->rdpq_tracker[i].pool_entry_virt)
|
|
dma_pool_free(fusion->rdpq_tracker[i].dma_pool_ptr,
|
|
fusion->rdpq_tracker[i].pool_entry_virt,
|
|
fusion->rdpq_tracker[i].pool_entry_phys);
|
|
|
|
}
|
|
|
|
if (fusion->reply_frames_desc_pool)
|
|
dma_pool_destroy(fusion->reply_frames_desc_pool);
|
|
if (fusion->reply_frames_desc_pool_align)
|
|
dma_pool_destroy(fusion->reply_frames_desc_pool_align);
|
|
|
|
if (fusion->rdpq_virt)
|
|
pci_free_consistent(instance->pdev,
|
|
sizeof(struct MPI2_IOC_INIT_RDPQ_ARRAY_ENTRY) * MAX_MSIX_QUEUES_FUSION,
|
|
fusion->rdpq_virt, fusion->rdpq_phys);
|
|
}
|
|
|
|
static void
|
|
megasas_free_reply_fusion(struct megasas_instance *instance) {
|
|
|
|
struct fusion_context *fusion;
|
|
|
|
fusion = instance->ctrl_context;
|
|
|
|
if (fusion->reply_frames_desc[0])
|
|
dma_pool_free(fusion->reply_frames_desc_pool,
|
|
fusion->reply_frames_desc[0],
|
|
fusion->reply_frames_desc_phys[0]);
|
|
|
|
if (fusion->reply_frames_desc_pool)
|
|
dma_pool_destroy(fusion->reply_frames_desc_pool);
|
|
|
|
}
|
|
|
|
|
|
/**
|
|
* megasas_alloc_cmds_fusion - Allocates the command packets
|
|
* @instance: Adapter soft state
|
|
*
|
|
*
|
|
* Each frame has a 32-bit field called context. This context is used to get
|
|
* back the megasas_cmd_fusion from the frame when a frame gets completed
|
|
* In this driver, the 32 bit values are the indices into an array cmd_list.
|
|
* This array is used only to look up the megasas_cmd_fusion given the context.
|
|
* The free commands themselves are maintained in a linked list called cmd_pool.
|
|
*
|
|
* cmds are formed in the io_request and sg_frame members of the
|
|
* megasas_cmd_fusion. The context field is used to get a request descriptor
|
|
* and is used as SMID of the cmd.
|
|
* SMID value range is from 1 to max_fw_cmds.
|
|
*/
|
|
int
|
|
megasas_alloc_cmds_fusion(struct megasas_instance *instance)
|
|
{
|
|
int i;
|
|
struct fusion_context *fusion;
|
|
struct megasas_cmd_fusion *cmd;
|
|
u32 offset;
|
|
dma_addr_t io_req_base_phys;
|
|
u8 *io_req_base;
|
|
|
|
|
|
fusion = instance->ctrl_context;
|
|
|
|
if (megasas_alloc_request_fusion(instance))
|
|
goto fail_exit;
|
|
|
|
if (instance->is_rdpq) {
|
|
if (megasas_alloc_rdpq_fusion(instance))
|
|
goto fail_exit;
|
|
} else
|
|
if (megasas_alloc_reply_fusion(instance))
|
|
goto fail_exit;
|
|
|
|
if (megasas_alloc_cmdlist_fusion(instance))
|
|
goto fail_exit;
|
|
|
|
dev_info(&instance->pdev->dev, "Configured max firmware commands: %d\n",
|
|
instance->max_fw_cmds);
|
|
|
|
/* The first 256 bytes (SMID 0) is not used. Don't add to the cmd list */
|
|
io_req_base = fusion->io_request_frames + MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE;
|
|
io_req_base_phys = fusion->io_request_frames_phys + MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE;
|
|
|
|
/*
|
|
* Add all the commands to command pool (fusion->cmd_pool)
|
|
*/
|
|
|
|
/* SMID 0 is reserved. Set SMID/index from 1 */
|
|
for (i = 0; i < instance->max_mpt_cmds; i++) {
|
|
cmd = fusion->cmd_list[i];
|
|
offset = MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE * i;
|
|
memset(cmd, 0, sizeof(struct megasas_cmd_fusion));
|
|
cmd->index = i + 1;
|
|
cmd->scmd = NULL;
|
|
cmd->sync_cmd_idx =
|
|
(i >= instance->max_scsi_cmds && i < instance->max_fw_cmds) ?
|
|
(i - instance->max_scsi_cmds) :
|
|
(u32)ULONG_MAX; /* Set to Invalid */
|
|
cmd->instance = instance;
|
|
cmd->io_request =
|
|
(struct MPI2_RAID_SCSI_IO_REQUEST *)
|
|
(io_req_base + offset);
|
|
memset(cmd->io_request, 0,
|
|
sizeof(struct MPI2_RAID_SCSI_IO_REQUEST));
|
|
cmd->io_request_phys_addr = io_req_base_phys + offset;
|
|
cmd->r1_alt_dev_handle = MR_DEVHANDLE_INVALID;
|
|
}
|
|
|
|
if (megasas_create_sg_sense_fusion(instance))
|
|
goto fail_exit;
|
|
|
|
return 0;
|
|
|
|
fail_exit:
|
|
megasas_free_cmds_fusion(instance);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
/**
|
|
* wait_and_poll - Issues a polling command
|
|
* @instance: Adapter soft state
|
|
* @cmd: Command packet to be issued
|
|
*
|
|
* For polling, MFI requires the cmd_status to be set to 0xFF before posting.
|
|
*/
|
|
int
|
|
wait_and_poll(struct megasas_instance *instance, struct megasas_cmd *cmd,
|
|
int seconds)
|
|
{
|
|
int i;
|
|
struct megasas_header *frame_hdr = &cmd->frame->hdr;
|
|
struct fusion_context *fusion;
|
|
|
|
u32 msecs = seconds * 1000;
|
|
|
|
fusion = instance->ctrl_context;
|
|
/*
|
|
* Wait for cmd_status to change
|
|
*/
|
|
for (i = 0; (i < msecs) && (frame_hdr->cmd_status == 0xff); i += 20) {
|
|
rmb();
|
|
msleep(20);
|
|
}
|
|
|
|
if (frame_hdr->cmd_status == MFI_STAT_INVALID_STATUS)
|
|
return DCMD_TIMEOUT;
|
|
else if (frame_hdr->cmd_status == MFI_STAT_OK)
|
|
return DCMD_SUCCESS;
|
|
else
|
|
return DCMD_FAILED;
|
|
}
|
|
|
|
/**
|
|
* megasas_ioc_init_fusion - Initializes the FW
|
|
* @instance: Adapter soft state
|
|
*
|
|
* Issues the IOC Init cmd
|
|
*/
|
|
int
|
|
megasas_ioc_init_fusion(struct megasas_instance *instance)
|
|
{
|
|
struct megasas_init_frame *init_frame;
|
|
struct MPI2_IOC_INIT_REQUEST *IOCInitMessage = NULL;
|
|
dma_addr_t ioc_init_handle;
|
|
struct megasas_cmd *cmd;
|
|
u8 ret, cur_rdpq_mode;
|
|
struct fusion_context *fusion;
|
|
union MEGASAS_REQUEST_DESCRIPTOR_UNION req_desc;
|
|
int i;
|
|
struct megasas_header *frame_hdr;
|
|
const char *sys_info;
|
|
MFI_CAPABILITIES *drv_ops;
|
|
u32 scratch_pad_2;
|
|
ktime_t time;
|
|
bool cur_fw_64bit_dma_capable;
|
|
|
|
fusion = instance->ctrl_context;
|
|
|
|
ioc_init_handle = fusion->ioc_init_request_phys;
|
|
IOCInitMessage = fusion->ioc_init_request;
|
|
|
|
cmd = fusion->ioc_init_cmd;
|
|
|
|
scratch_pad_2 = readl
|
|
(&instance->reg_set->outbound_scratch_pad_2);
|
|
|
|
cur_rdpq_mode = (scratch_pad_2 & MR_RDPQ_MODE_OFFSET) ? 1 : 0;
|
|
|
|
if (instance->adapter_type == INVADER_SERIES) {
|
|
cur_fw_64bit_dma_capable =
|
|
(scratch_pad_2 & MR_CAN_HANDLE_64_BIT_DMA_OFFSET) ? true : false;
|
|
|
|
if (instance->consistent_mask_64bit && !cur_fw_64bit_dma_capable) {
|
|
dev_err(&instance->pdev->dev, "Driver was operating on 64bit "
|
|
"DMA mask, but upcoming FW does not support 64bit DMA mask\n");
|
|
megaraid_sas_kill_hba(instance);
|
|
ret = 1;
|
|
goto fail_fw_init;
|
|
}
|
|
}
|
|
|
|
if (instance->is_rdpq && !cur_rdpq_mode) {
|
|
dev_err(&instance->pdev->dev, "Firmware downgrade *NOT SUPPORTED*"
|
|
" from RDPQ mode to non RDPQ mode\n");
|
|
ret = 1;
|
|
goto fail_fw_init;
|
|
}
|
|
|
|
instance->fw_sync_cache_support = (scratch_pad_2 &
|
|
MR_CAN_HANDLE_SYNC_CACHE_OFFSET) ? 1 : 0;
|
|
dev_info(&instance->pdev->dev, "FW supports sync cache\t: %s\n",
|
|
instance->fw_sync_cache_support ? "Yes" : "No");
|
|
|
|
memset(IOCInitMessage, 0, sizeof(struct MPI2_IOC_INIT_REQUEST));
|
|
|
|
IOCInitMessage->Function = MPI2_FUNCTION_IOC_INIT;
|
|
IOCInitMessage->WhoInit = MPI2_WHOINIT_HOST_DRIVER;
|
|
IOCInitMessage->MsgVersion = cpu_to_le16(MPI2_VERSION);
|
|
IOCInitMessage->HeaderVersion = cpu_to_le16(MPI2_HEADER_VERSION);
|
|
IOCInitMessage->SystemRequestFrameSize = cpu_to_le16(MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE / 4);
|
|
|
|
IOCInitMessage->ReplyDescriptorPostQueueDepth = cpu_to_le16(fusion->reply_q_depth);
|
|
IOCInitMessage->ReplyDescriptorPostQueueAddress = instance->is_rdpq ?
|
|
cpu_to_le64(fusion->rdpq_phys) :
|
|
cpu_to_le64(fusion->reply_frames_desc_phys[0]);
|
|
IOCInitMessage->MsgFlags = instance->is_rdpq ?
|
|
MPI2_IOCINIT_MSGFLAG_RDPQ_ARRAY_MODE : 0;
|
|
IOCInitMessage->SystemRequestFrameBaseAddress = cpu_to_le64(fusion->io_request_frames_phys);
|
|
IOCInitMessage->SenseBufferAddressHigh = cpu_to_le32(upper_32_bits(fusion->sense_phys_addr));
|
|
IOCInitMessage->HostMSIxVectors = instance->msix_vectors;
|
|
IOCInitMessage->HostPageSize = MR_DEFAULT_NVME_PAGE_SHIFT;
|
|
|
|
time = ktime_get_real();
|
|
/* Convert to milliseconds as per FW requirement */
|
|
IOCInitMessage->TimeStamp = cpu_to_le64(ktime_to_ms(time));
|
|
|
|
init_frame = (struct megasas_init_frame *)cmd->frame;
|
|
memset(init_frame, 0, IOC_INIT_FRAME_SIZE);
|
|
|
|
frame_hdr = &cmd->frame->hdr;
|
|
frame_hdr->cmd_status = 0xFF;
|
|
frame_hdr->flags = cpu_to_le16(
|
|
le16_to_cpu(frame_hdr->flags) |
|
|
MFI_FRAME_DONT_POST_IN_REPLY_QUEUE);
|
|
|
|
init_frame->cmd = MFI_CMD_INIT;
|
|
init_frame->cmd_status = 0xFF;
|
|
|
|
drv_ops = (MFI_CAPABILITIES *) &(init_frame->driver_operations);
|
|
|
|
/* driver support Extended MSIX */
|
|
if (instance->adapter_type >= INVADER_SERIES)
|
|
drv_ops->mfi_capabilities.support_additional_msix = 1;
|
|
/* driver supports HA / Remote LUN over Fast Path interface */
|
|
drv_ops->mfi_capabilities.support_fp_remote_lun = 1;
|
|
|
|
drv_ops->mfi_capabilities.support_max_255lds = 1;
|
|
drv_ops->mfi_capabilities.support_ndrive_r1_lb = 1;
|
|
drv_ops->mfi_capabilities.security_protocol_cmds_fw = 1;
|
|
|
|
if (instance->max_chain_frame_sz > MEGASAS_CHAIN_FRAME_SZ_MIN)
|
|
drv_ops->mfi_capabilities.support_ext_io_size = 1;
|
|
|
|
drv_ops->mfi_capabilities.support_fp_rlbypass = 1;
|
|
if (!dual_qdepth_disable)
|
|
drv_ops->mfi_capabilities.support_ext_queue_depth = 1;
|
|
|
|
drv_ops->mfi_capabilities.support_qd_throttling = 1;
|
|
drv_ops->mfi_capabilities.support_pd_map_target_id = 1;
|
|
drv_ops->mfi_capabilities.support_nvme_passthru = 1;
|
|
|
|
if (instance->consistent_mask_64bit)
|
|
drv_ops->mfi_capabilities.support_64bit_mode = 1;
|
|
|
|
/* Convert capability to LE32 */
|
|
cpu_to_le32s((u32 *)&init_frame->driver_operations.mfi_capabilities);
|
|
|
|
sys_info = dmi_get_system_info(DMI_PRODUCT_UUID);
|
|
if (instance->system_info_buf && sys_info) {
|
|
memcpy(instance->system_info_buf->systemId, sys_info,
|
|
strlen(sys_info) > 64 ? 64 : strlen(sys_info));
|
|
instance->system_info_buf->systemIdLength =
|
|
strlen(sys_info) > 64 ? 64 : strlen(sys_info);
|
|
init_frame->system_info_lo = cpu_to_le32(lower_32_bits(instance->system_info_h));
|
|
init_frame->system_info_hi = cpu_to_le32(upper_32_bits(instance->system_info_h));
|
|
}
|
|
|
|
init_frame->queue_info_new_phys_addr_hi =
|
|
cpu_to_le32(upper_32_bits(ioc_init_handle));
|
|
init_frame->queue_info_new_phys_addr_lo =
|
|
cpu_to_le32(lower_32_bits(ioc_init_handle));
|
|
init_frame->data_xfer_len = cpu_to_le32(sizeof(struct MPI2_IOC_INIT_REQUEST));
|
|
|
|
req_desc.u.low = cpu_to_le32(lower_32_bits(cmd->frame_phys_addr));
|
|
req_desc.u.high = cpu_to_le32(upper_32_bits(cmd->frame_phys_addr));
|
|
req_desc.MFAIo.RequestFlags =
|
|
(MEGASAS_REQ_DESCRIPT_FLAGS_MFA <<
|
|
MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
|
|
|
|
/*
|
|
* disable the intr before firing the init frame
|
|
*/
|
|
instance->instancet->disable_intr(instance);
|
|
|
|
for (i = 0; i < (10 * 1000); i += 20) {
|
|
if (readl(&instance->reg_set->doorbell) & 1)
|
|
msleep(20);
|
|
else
|
|
break;
|
|
}
|
|
|
|
megasas_fire_cmd_fusion(instance, &req_desc);
|
|
|
|
wait_and_poll(instance, cmd, MFI_POLL_TIMEOUT_SECS);
|
|
|
|
frame_hdr = &cmd->frame->hdr;
|
|
if (frame_hdr->cmd_status != 0) {
|
|
ret = 1;
|
|
goto fail_fw_init;
|
|
}
|
|
|
|
return 0;
|
|
|
|
fail_fw_init:
|
|
dev_err(&instance->pdev->dev,
|
|
"Init cmd return status FAILED for SCSI host %d\n",
|
|
instance->host->host_no);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* megasas_sync_pd_seq_num - JBOD SEQ MAP
|
|
* @instance: Adapter soft state
|
|
* @pend: set to 1, if it is pended jbod map.
|
|
*
|
|
* Issue Jbod map to the firmware. If it is pended command,
|
|
* issue command and return. If it is first instance of jbod map
|
|
* issue and receive command.
|
|
*/
|
|
int
|
|
megasas_sync_pd_seq_num(struct megasas_instance *instance, bool pend) {
|
|
int ret = 0;
|
|
u32 pd_seq_map_sz;
|
|
struct megasas_cmd *cmd;
|
|
struct megasas_dcmd_frame *dcmd;
|
|
struct fusion_context *fusion = instance->ctrl_context;
|
|
struct MR_PD_CFG_SEQ_NUM_SYNC *pd_sync;
|
|
dma_addr_t pd_seq_h;
|
|
|
|
pd_sync = (void *)fusion->pd_seq_sync[(instance->pd_seq_map_id & 1)];
|
|
pd_seq_h = fusion->pd_seq_phys[(instance->pd_seq_map_id & 1)];
|
|
pd_seq_map_sz = sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC) +
|
|
(sizeof(struct MR_PD_CFG_SEQ) *
|
|
(MAX_PHYSICAL_DEVICES - 1));
|
|
|
|
cmd = megasas_get_cmd(instance);
|
|
if (!cmd) {
|
|
dev_err(&instance->pdev->dev,
|
|
"Could not get mfi cmd. Fail from %s %d\n",
|
|
__func__, __LINE__);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
dcmd = &cmd->frame->dcmd;
|
|
|
|
memset(pd_sync, 0, pd_seq_map_sz);
|
|
memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
|
|
|
|
if (pend) {
|
|
dcmd->mbox.b[0] = MEGASAS_DCMD_MBOX_PEND_FLAG;
|
|
dcmd->flags = MFI_FRAME_DIR_WRITE;
|
|
instance->jbod_seq_cmd = cmd;
|
|
} else {
|
|
dcmd->flags = MFI_FRAME_DIR_READ;
|
|
}
|
|
|
|
dcmd->cmd = MFI_CMD_DCMD;
|
|
dcmd->cmd_status = 0xFF;
|
|
dcmd->sge_count = 1;
|
|
dcmd->timeout = 0;
|
|
dcmd->pad_0 = 0;
|
|
dcmd->data_xfer_len = cpu_to_le32(pd_seq_map_sz);
|
|
dcmd->opcode = cpu_to_le32(MR_DCMD_SYSTEM_PD_MAP_GET_INFO);
|
|
|
|
megasas_set_dma_settings(instance, dcmd, pd_seq_h, pd_seq_map_sz);
|
|
|
|
if (pend) {
|
|
instance->instancet->issue_dcmd(instance, cmd);
|
|
return 0;
|
|
}
|
|
|
|
/* Below code is only for non pended DCMD */
|
|
if (!instance->mask_interrupts)
|
|
ret = megasas_issue_blocked_cmd(instance, cmd,
|
|
MFI_IO_TIMEOUT_SECS);
|
|
else
|
|
ret = megasas_issue_polled(instance, cmd);
|
|
|
|
if (le32_to_cpu(pd_sync->count) > MAX_PHYSICAL_DEVICES) {
|
|
dev_warn(&instance->pdev->dev,
|
|
"driver supports max %d JBOD, but FW reports %d\n",
|
|
MAX_PHYSICAL_DEVICES, le32_to_cpu(pd_sync->count));
|
|
ret = -EINVAL;
|
|
}
|
|
|
|
if (ret == DCMD_TIMEOUT)
|
|
megaraid_sas_kill_hba(instance);
|
|
|
|
if (ret == DCMD_SUCCESS)
|
|
instance->pd_seq_map_id++;
|
|
|
|
megasas_return_cmd(instance, cmd);
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* megasas_get_ld_map_info - Returns FW's ld_map structure
|
|
* @instance: Adapter soft state
|
|
* @pend: Pend the command or not
|
|
* Issues an internal command (DCMD) to get the FW's controller PD
|
|
* list structure. This information is mainly used to find out SYSTEM
|
|
* supported by the FW.
|
|
* dcmd.mbox value setting for MR_DCMD_LD_MAP_GET_INFO
|
|
* dcmd.mbox.b[0] - number of LDs being sync'd
|
|
* dcmd.mbox.b[1] - 0 - complete command immediately.
|
|
* - 1 - pend till config change
|
|
* dcmd.mbox.b[2] - 0 - supports max 64 lds and uses legacy MR_FW_RAID_MAP
|
|
* - 1 - supports max MAX_LOGICAL_DRIVES_EXT lds and
|
|
* uses extended struct MR_FW_RAID_MAP_EXT
|
|
*/
|
|
static int
|
|
megasas_get_ld_map_info(struct megasas_instance *instance)
|
|
{
|
|
int ret = 0;
|
|
struct megasas_cmd *cmd;
|
|
struct megasas_dcmd_frame *dcmd;
|
|
void *ci;
|
|
dma_addr_t ci_h = 0;
|
|
u32 size_map_info;
|
|
struct fusion_context *fusion;
|
|
|
|
cmd = megasas_get_cmd(instance);
|
|
|
|
if (!cmd) {
|
|
dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get cmd for map info\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
fusion = instance->ctrl_context;
|
|
|
|
if (!fusion) {
|
|
megasas_return_cmd(instance, cmd);
|
|
return -ENXIO;
|
|
}
|
|
|
|
dcmd = &cmd->frame->dcmd;
|
|
|
|
size_map_info = fusion->current_map_sz;
|
|
|
|
ci = (void *) fusion->ld_map[(instance->map_id & 1)];
|
|
ci_h = fusion->ld_map_phys[(instance->map_id & 1)];
|
|
|
|
if (!ci) {
|
|
dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc mem for ld_map_info\n");
|
|
megasas_return_cmd(instance, cmd);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
memset(ci, 0, fusion->max_map_sz);
|
|
memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
|
|
dcmd->cmd = MFI_CMD_DCMD;
|
|
dcmd->cmd_status = 0xFF;
|
|
dcmd->sge_count = 1;
|
|
dcmd->flags = MFI_FRAME_DIR_READ;
|
|
dcmd->timeout = 0;
|
|
dcmd->pad_0 = 0;
|
|
dcmd->data_xfer_len = cpu_to_le32(size_map_info);
|
|
dcmd->opcode = cpu_to_le32(MR_DCMD_LD_MAP_GET_INFO);
|
|
|
|
megasas_set_dma_settings(instance, dcmd, ci_h, size_map_info);
|
|
|
|
if (!instance->mask_interrupts)
|
|
ret = megasas_issue_blocked_cmd(instance, cmd,
|
|
MFI_IO_TIMEOUT_SECS);
|
|
else
|
|
ret = megasas_issue_polled(instance, cmd);
|
|
|
|
if (ret == DCMD_TIMEOUT)
|
|
megaraid_sas_kill_hba(instance);
|
|
|
|
megasas_return_cmd(instance, cmd);
|
|
|
|
return ret;
|
|
}
|
|
|
|
u8
|
|
megasas_get_map_info(struct megasas_instance *instance)
|
|
{
|
|
struct fusion_context *fusion = instance->ctrl_context;
|
|
|
|
fusion->fast_path_io = 0;
|
|
if (!megasas_get_ld_map_info(instance)) {
|
|
if (MR_ValidateMapInfo(instance, instance->map_id)) {
|
|
fusion->fast_path_io = 1;
|
|
return 0;
|
|
}
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* megasas_sync_map_info - Returns FW's ld_map structure
|
|
* @instance: Adapter soft state
|
|
*
|
|
* Issues an internal command (DCMD) to get the FW's controller PD
|
|
* list structure. This information is mainly used to find out SYSTEM
|
|
* supported by the FW.
|
|
*/
|
|
int
|
|
megasas_sync_map_info(struct megasas_instance *instance)
|
|
{
|
|
int i;
|
|
struct megasas_cmd *cmd;
|
|
struct megasas_dcmd_frame *dcmd;
|
|
u16 num_lds;
|
|
u32 size_sync_info;
|
|
struct fusion_context *fusion;
|
|
struct MR_LD_TARGET_SYNC *ci = NULL;
|
|
struct MR_DRV_RAID_MAP_ALL *map;
|
|
struct MR_LD_RAID *raid;
|
|
struct MR_LD_TARGET_SYNC *ld_sync;
|
|
dma_addr_t ci_h = 0;
|
|
u32 size_map_info;
|
|
|
|
cmd = megasas_get_cmd(instance);
|
|
|
|
if (!cmd) {
|
|
dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get cmd for sync info\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
fusion = instance->ctrl_context;
|
|
|
|
if (!fusion) {
|
|
megasas_return_cmd(instance, cmd);
|
|
return 1;
|
|
}
|
|
|
|
map = fusion->ld_drv_map[instance->map_id & 1];
|
|
|
|
num_lds = le16_to_cpu(map->raidMap.ldCount);
|
|
|
|
dcmd = &cmd->frame->dcmd;
|
|
|
|
size_sync_info = sizeof(struct MR_LD_TARGET_SYNC) *num_lds;
|
|
|
|
memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
|
|
|
|
ci = (struct MR_LD_TARGET_SYNC *)
|
|
fusion->ld_map[(instance->map_id - 1) & 1];
|
|
memset(ci, 0, fusion->max_map_sz);
|
|
|
|
ci_h = fusion->ld_map_phys[(instance->map_id - 1) & 1];
|
|
|
|
ld_sync = (struct MR_LD_TARGET_SYNC *)ci;
|
|
|
|
for (i = 0; i < num_lds; i++, ld_sync++) {
|
|
raid = MR_LdRaidGet(i, map);
|
|
ld_sync->targetId = MR_GetLDTgtId(i, map);
|
|
ld_sync->seqNum = raid->seqNum;
|
|
}
|
|
|
|
size_map_info = fusion->current_map_sz;
|
|
|
|
dcmd->cmd = MFI_CMD_DCMD;
|
|
dcmd->cmd_status = 0xFF;
|
|
dcmd->sge_count = 1;
|
|
dcmd->flags = MFI_FRAME_DIR_WRITE;
|
|
dcmd->timeout = 0;
|
|
dcmd->pad_0 = 0;
|
|
dcmd->data_xfer_len = cpu_to_le32(size_map_info);
|
|
dcmd->mbox.b[0] = num_lds;
|
|
dcmd->mbox.b[1] = MEGASAS_DCMD_MBOX_PEND_FLAG;
|
|
dcmd->opcode = cpu_to_le32(MR_DCMD_LD_MAP_GET_INFO);
|
|
|
|
megasas_set_dma_settings(instance, dcmd, ci_h, size_map_info);
|
|
|
|
instance->map_update_cmd = cmd;
|
|
|
|
instance->instancet->issue_dcmd(instance, cmd);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* meagasas_display_intel_branding - Display branding string
|
|
* @instance: per adapter object
|
|
*
|
|
* Return nothing.
|
|
*/
|
|
static void
|
|
megasas_display_intel_branding(struct megasas_instance *instance)
|
|
{
|
|
if (instance->pdev->subsystem_vendor != PCI_VENDOR_ID_INTEL)
|
|
return;
|
|
|
|
switch (instance->pdev->device) {
|
|
case PCI_DEVICE_ID_LSI_INVADER:
|
|
switch (instance->pdev->subsystem_device) {
|
|
case MEGARAID_INTEL_RS3DC080_SSDID:
|
|
dev_info(&instance->pdev->dev, "scsi host %d: %s\n",
|
|
instance->host->host_no,
|
|
MEGARAID_INTEL_RS3DC080_BRANDING);
|
|
break;
|
|
case MEGARAID_INTEL_RS3DC040_SSDID:
|
|
dev_info(&instance->pdev->dev, "scsi host %d: %s\n",
|
|
instance->host->host_no,
|
|
MEGARAID_INTEL_RS3DC040_BRANDING);
|
|
break;
|
|
case MEGARAID_INTEL_RS3SC008_SSDID:
|
|
dev_info(&instance->pdev->dev, "scsi host %d: %s\n",
|
|
instance->host->host_no,
|
|
MEGARAID_INTEL_RS3SC008_BRANDING);
|
|
break;
|
|
case MEGARAID_INTEL_RS3MC044_SSDID:
|
|
dev_info(&instance->pdev->dev, "scsi host %d: %s\n",
|
|
instance->host->host_no,
|
|
MEGARAID_INTEL_RS3MC044_BRANDING);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
case PCI_DEVICE_ID_LSI_FURY:
|
|
switch (instance->pdev->subsystem_device) {
|
|
case MEGARAID_INTEL_RS3WC080_SSDID:
|
|
dev_info(&instance->pdev->dev, "scsi host %d: %s\n",
|
|
instance->host->host_no,
|
|
MEGARAID_INTEL_RS3WC080_BRANDING);
|
|
break;
|
|
case MEGARAID_INTEL_RS3WC040_SSDID:
|
|
dev_info(&instance->pdev->dev, "scsi host %d: %s\n",
|
|
instance->host->host_no,
|
|
MEGARAID_INTEL_RS3WC040_BRANDING);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
case PCI_DEVICE_ID_LSI_CUTLASS_52:
|
|
case PCI_DEVICE_ID_LSI_CUTLASS_53:
|
|
switch (instance->pdev->subsystem_device) {
|
|
case MEGARAID_INTEL_RMS3BC160_SSDID:
|
|
dev_info(&instance->pdev->dev, "scsi host %d: %s\n",
|
|
instance->host->host_no,
|
|
MEGARAID_INTEL_RMS3BC160_BRANDING);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* megasas_allocate_raid_maps - Allocate memory for RAID maps
|
|
* @instance: Adapter soft state
|
|
*
|
|
* return: if success: return 0
|
|
* failed: return -ENOMEM
|
|
*/
|
|
static inline int megasas_allocate_raid_maps(struct megasas_instance *instance)
|
|
{
|
|
struct fusion_context *fusion;
|
|
int i = 0;
|
|
|
|
fusion = instance->ctrl_context;
|
|
|
|
fusion->drv_map_pages = get_order(fusion->drv_map_sz);
|
|
|
|
for (i = 0; i < 2; i++) {
|
|
fusion->ld_map[i] = NULL;
|
|
|
|
fusion->ld_drv_map[i] = (void *)
|
|
__get_free_pages(__GFP_ZERO | GFP_KERNEL,
|
|
fusion->drv_map_pages);
|
|
|
|
if (!fusion->ld_drv_map[i]) {
|
|
fusion->ld_drv_map[i] = vzalloc(fusion->drv_map_sz);
|
|
|
|
if (!fusion->ld_drv_map[i]) {
|
|
dev_err(&instance->pdev->dev,
|
|
"Could not allocate memory for local map"
|
|
" size requested: %d\n",
|
|
fusion->drv_map_sz);
|
|
goto ld_drv_map_alloc_fail;
|
|
}
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < 2; i++) {
|
|
fusion->ld_map[i] = dma_alloc_coherent(&instance->pdev->dev,
|
|
fusion->max_map_sz,
|
|
&fusion->ld_map_phys[i],
|
|
GFP_KERNEL);
|
|
if (!fusion->ld_map[i]) {
|
|
dev_err(&instance->pdev->dev,
|
|
"Could not allocate memory for map info %s:%d\n",
|
|
__func__, __LINE__);
|
|
goto ld_map_alloc_fail;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
|
|
ld_map_alloc_fail:
|
|
for (i = 0; i < 2; i++) {
|
|
if (fusion->ld_map[i])
|
|
dma_free_coherent(&instance->pdev->dev,
|
|
fusion->max_map_sz,
|
|
fusion->ld_map[i],
|
|
fusion->ld_map_phys[i]);
|
|
}
|
|
|
|
ld_drv_map_alloc_fail:
|
|
for (i = 0; i < 2; i++) {
|
|
if (fusion->ld_drv_map[i]) {
|
|
if (is_vmalloc_addr(fusion->ld_drv_map[i]))
|
|
vfree(fusion->ld_drv_map[i]);
|
|
else
|
|
free_pages((ulong)fusion->ld_drv_map[i],
|
|
fusion->drv_map_pages);
|
|
}
|
|
}
|
|
|
|
return -ENOMEM;
|
|
}
|
|
|
|
/**
|
|
* megasas_configure_queue_sizes - Calculate size of request desc queue,
|
|
* reply desc queue,
|
|
* IO request frame queue, set can_queue.
|
|
* @instance: Adapter soft state
|
|
* @return: void
|
|
*/
|
|
static inline
|
|
void megasas_configure_queue_sizes(struct megasas_instance *instance)
|
|
{
|
|
struct fusion_context *fusion;
|
|
u16 max_cmd;
|
|
|
|
fusion = instance->ctrl_context;
|
|
max_cmd = instance->max_fw_cmds;
|
|
|
|
if (instance->adapter_type == VENTURA_SERIES)
|
|
instance->max_mpt_cmds = instance->max_fw_cmds * RAID_1_PEER_CMDS;
|
|
else
|
|
instance->max_mpt_cmds = instance->max_fw_cmds;
|
|
|
|
instance->max_scsi_cmds = instance->max_fw_cmds -
|
|
(MEGASAS_FUSION_INTERNAL_CMDS +
|
|
MEGASAS_FUSION_IOCTL_CMDS);
|
|
instance->cur_can_queue = instance->max_scsi_cmds;
|
|
instance->host->can_queue = instance->cur_can_queue;
|
|
|
|
fusion->reply_q_depth = 2 * ((max_cmd + 1 + 15) / 16) * 16;
|
|
|
|
fusion->request_alloc_sz = sizeof(union MEGASAS_REQUEST_DESCRIPTOR_UNION) *
|
|
instance->max_mpt_cmds;
|
|
fusion->reply_alloc_sz = sizeof(union MPI2_REPLY_DESCRIPTORS_UNION) *
|
|
(fusion->reply_q_depth);
|
|
fusion->io_frames_alloc_sz = MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE +
|
|
(MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE
|
|
* (instance->max_mpt_cmds + 1)); /* Extra 1 for SMID 0 */
|
|
}
|
|
|
|
static int megasas_alloc_ioc_init_frame(struct megasas_instance *instance)
|
|
{
|
|
struct fusion_context *fusion;
|
|
struct megasas_cmd *cmd;
|
|
|
|
fusion = instance->ctrl_context;
|
|
|
|
cmd = kzalloc(sizeof(struct megasas_cmd), GFP_KERNEL);
|
|
|
|
if (!cmd) {
|
|
dev_err(&instance->pdev->dev, "Failed from func: %s line: %d\n",
|
|
__func__, __LINE__);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
cmd->frame = dma_alloc_coherent(&instance->pdev->dev,
|
|
IOC_INIT_FRAME_SIZE,
|
|
&cmd->frame_phys_addr, GFP_KERNEL);
|
|
|
|
if (!cmd->frame) {
|
|
dev_err(&instance->pdev->dev, "Failed from func: %s line: %d\n",
|
|
__func__, __LINE__);
|
|
kfree(cmd);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
fusion->ioc_init_cmd = cmd;
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* megasas_free_ioc_init_cmd - Free IOC INIT command frame
|
|
* @instance: Adapter soft state
|
|
*/
|
|
static inline void megasas_free_ioc_init_cmd(struct megasas_instance *instance)
|
|
{
|
|
struct fusion_context *fusion;
|
|
|
|
fusion = instance->ctrl_context;
|
|
|
|
if (fusion->ioc_init_cmd && fusion->ioc_init_cmd->frame)
|
|
dma_free_coherent(&instance->pdev->dev,
|
|
IOC_INIT_FRAME_SIZE,
|
|
fusion->ioc_init_cmd->frame,
|
|
fusion->ioc_init_cmd->frame_phys_addr);
|
|
|
|
if (fusion->ioc_init_cmd)
|
|
kfree(fusion->ioc_init_cmd);
|
|
}
|
|
|
|
/**
|
|
* megasas_init_adapter_fusion - Initializes the FW
|
|
* @instance: Adapter soft state
|
|
*
|
|
* This is the main function for initializing firmware.
|
|
*/
|
|
u32
|
|
megasas_init_adapter_fusion(struct megasas_instance *instance)
|
|
{
|
|
struct megasas_register_set __iomem *reg_set;
|
|
struct fusion_context *fusion;
|
|
u32 scratch_pad_2;
|
|
int i = 0, count;
|
|
|
|
fusion = instance->ctrl_context;
|
|
|
|
reg_set = instance->reg_set;
|
|
|
|
megasas_fusion_update_can_queue(instance, PROBE_CONTEXT);
|
|
|
|
/*
|
|
* Only Driver's internal DCMDs and IOCTL DCMDs needs to have MFI frames
|
|
*/
|
|
instance->max_mfi_cmds =
|
|
MEGASAS_FUSION_INTERNAL_CMDS + MEGASAS_FUSION_IOCTL_CMDS;
|
|
|
|
megasas_configure_queue_sizes(instance);
|
|
|
|
scratch_pad_2 = readl(&instance->reg_set->outbound_scratch_pad_2);
|
|
/* If scratch_pad_2 & MEGASAS_MAX_CHAIN_SIZE_UNITS_MASK is set,
|
|
* Firmware support extended IO chain frame which is 4 times more than
|
|
* legacy Firmware.
|
|
* Legacy Firmware - Frame size is (8 * 128) = 1K
|
|
* 1M IO Firmware - Frame size is (8 * 128 * 4) = 4K
|
|
*/
|
|
if (scratch_pad_2 & MEGASAS_MAX_CHAIN_SIZE_UNITS_MASK)
|
|
instance->max_chain_frame_sz =
|
|
((scratch_pad_2 & MEGASAS_MAX_CHAIN_SIZE_MASK) >>
|
|
MEGASAS_MAX_CHAIN_SHIFT) * MEGASAS_1MB_IO;
|
|
else
|
|
instance->max_chain_frame_sz =
|
|
((scratch_pad_2 & MEGASAS_MAX_CHAIN_SIZE_MASK) >>
|
|
MEGASAS_MAX_CHAIN_SHIFT) * MEGASAS_256K_IO;
|
|
|
|
if (instance->max_chain_frame_sz < MEGASAS_CHAIN_FRAME_SZ_MIN) {
|
|
dev_warn(&instance->pdev->dev, "frame size %d invalid, fall back to legacy max frame size %d\n",
|
|
instance->max_chain_frame_sz,
|
|
MEGASAS_CHAIN_FRAME_SZ_MIN);
|
|
instance->max_chain_frame_sz = MEGASAS_CHAIN_FRAME_SZ_MIN;
|
|
}
|
|
|
|
fusion->max_sge_in_main_msg =
|
|
(MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE
|
|
- offsetof(struct MPI2_RAID_SCSI_IO_REQUEST, SGL))/16;
|
|
|
|
fusion->max_sge_in_chain =
|
|
instance->max_chain_frame_sz
|
|
/ sizeof(union MPI2_SGE_IO_UNION);
|
|
|
|
instance->max_num_sge =
|
|
rounddown_pow_of_two(fusion->max_sge_in_main_msg
|
|
+ fusion->max_sge_in_chain - 2);
|
|
|
|
/* Used for pass thru MFI frame (DCMD) */
|
|
fusion->chain_offset_mfi_pthru =
|
|
offsetof(struct MPI2_RAID_SCSI_IO_REQUEST, SGL)/16;
|
|
|
|
fusion->chain_offset_io_request =
|
|
(MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE -
|
|
sizeof(union MPI2_SGE_IO_UNION))/16;
|
|
|
|
count = instance->msix_vectors > 0 ? instance->msix_vectors : 1;
|
|
for (i = 0 ; i < count; i++)
|
|
fusion->last_reply_idx[i] = 0;
|
|
|
|
/*
|
|
* For fusion adapters, 3 commands for IOCTL and 8 commands
|
|
* for driver's internal DCMDs.
|
|
*/
|
|
instance->max_scsi_cmds = instance->max_fw_cmds -
|
|
(MEGASAS_FUSION_INTERNAL_CMDS +
|
|
MEGASAS_FUSION_IOCTL_CMDS);
|
|
sema_init(&instance->ioctl_sem, MEGASAS_FUSION_IOCTL_CMDS);
|
|
|
|
if (megasas_alloc_ioc_init_frame(instance))
|
|
return 1;
|
|
|
|
/*
|
|
* Allocate memory for descriptors
|
|
* Create a pool of commands
|
|
*/
|
|
if (megasas_alloc_cmds(instance))
|
|
goto fail_alloc_mfi_cmds;
|
|
if (megasas_alloc_cmds_fusion(instance))
|
|
goto fail_alloc_cmds;
|
|
|
|
if (megasas_ioc_init_fusion(instance))
|
|
goto fail_ioc_init;
|
|
|
|
megasas_display_intel_branding(instance);
|
|
if (megasas_get_ctrl_info(instance)) {
|
|
dev_err(&instance->pdev->dev,
|
|
"Could not get controller info. Fail from %s %d\n",
|
|
__func__, __LINE__);
|
|
goto fail_ioc_init;
|
|
}
|
|
|
|
instance->flag_ieee = 1;
|
|
instance->r1_ldio_hint_default = MR_R1_LDIO_PIGGYBACK_DEFAULT;
|
|
fusion->fast_path_io = 0;
|
|
|
|
if (megasas_allocate_raid_maps(instance))
|
|
goto fail_ioc_init;
|
|
|
|
if (!megasas_get_map_info(instance))
|
|
megasas_sync_map_info(instance);
|
|
|
|
return 0;
|
|
|
|
fail_ioc_init:
|
|
megasas_free_cmds_fusion(instance);
|
|
fail_alloc_cmds:
|
|
megasas_free_cmds(instance);
|
|
fail_alloc_mfi_cmds:
|
|
megasas_free_ioc_init_cmd(instance);
|
|
return 1;
|
|
}
|
|
|
|
/**
|
|
* map_cmd_status - Maps FW cmd status to OS cmd status
|
|
* @cmd : Pointer to cmd
|
|
* @status : status of cmd returned by FW
|
|
* @ext_status : ext status of cmd returned by FW
|
|
*/
|
|
|
|
void
|
|
map_cmd_status(struct fusion_context *fusion,
|
|
struct scsi_cmnd *scmd, u8 status, u8 ext_status,
|
|
u32 data_length, u8 *sense)
|
|
{
|
|
u8 cmd_type;
|
|
int resid;
|
|
|
|
cmd_type = megasas_cmd_type(scmd);
|
|
switch (status) {
|
|
|
|
case MFI_STAT_OK:
|
|
scmd->result = DID_OK << 16;
|
|
break;
|
|
|
|
case MFI_STAT_SCSI_IO_FAILED:
|
|
case MFI_STAT_LD_INIT_IN_PROGRESS:
|
|
scmd->result = (DID_ERROR << 16) | ext_status;
|
|
break;
|
|
|
|
case MFI_STAT_SCSI_DONE_WITH_ERROR:
|
|
|
|
scmd->result = (DID_OK << 16) | ext_status;
|
|
if (ext_status == SAM_STAT_CHECK_CONDITION) {
|
|
memset(scmd->sense_buffer, 0,
|
|
SCSI_SENSE_BUFFERSIZE);
|
|
memcpy(scmd->sense_buffer, sense,
|
|
SCSI_SENSE_BUFFERSIZE);
|
|
scmd->result |= DRIVER_SENSE << 24;
|
|
}
|
|
|
|
/*
|
|
* If the IO request is partially completed, then MR FW will
|
|
* update "io_request->DataLength" field with actual number of
|
|
* bytes transferred.Driver will set residual bytes count in
|
|
* SCSI command structure.
|
|
*/
|
|
resid = (scsi_bufflen(scmd) - data_length);
|
|
scsi_set_resid(scmd, resid);
|
|
|
|
if (resid &&
|
|
((cmd_type == READ_WRITE_LDIO) ||
|
|
(cmd_type == READ_WRITE_SYSPDIO)))
|
|
scmd_printk(KERN_INFO, scmd, "BRCM Debug mfi stat 0x%x, data len"
|
|
" requested/completed 0x%x/0x%x\n",
|
|
status, scsi_bufflen(scmd), data_length);
|
|
break;
|
|
|
|
case MFI_STAT_LD_OFFLINE:
|
|
case MFI_STAT_DEVICE_NOT_FOUND:
|
|
scmd->result = DID_BAD_TARGET << 16;
|
|
break;
|
|
case MFI_STAT_CONFIG_SEQ_MISMATCH:
|
|
scmd->result = DID_IMM_RETRY << 16;
|
|
break;
|
|
default:
|
|
scmd->result = DID_ERROR << 16;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* megasas_is_prp_possible -
|
|
* Checks if native NVMe PRPs can be built for the IO
|
|
*
|
|
* @instance: Adapter soft state
|
|
* @scmd: SCSI command from the mid-layer
|
|
* @sge_count: scatter gather element count.
|
|
*
|
|
* Returns: true: PRPs can be built
|
|
* false: IEEE SGLs needs to be built
|
|
*/
|
|
static bool
|
|
megasas_is_prp_possible(struct megasas_instance *instance,
|
|
struct scsi_cmnd *scmd, int sge_count)
|
|
{
|
|
struct fusion_context *fusion;
|
|
int i;
|
|
u32 data_length = 0;
|
|
struct scatterlist *sg_scmd;
|
|
bool build_prp = false;
|
|
u32 mr_nvme_pg_size;
|
|
|
|
mr_nvme_pg_size = max_t(u32, instance->nvme_page_size,
|
|
MR_DEFAULT_NVME_PAGE_SIZE);
|
|
fusion = instance->ctrl_context;
|
|
data_length = scsi_bufflen(scmd);
|
|
sg_scmd = scsi_sglist(scmd);
|
|
|
|
/*
|
|
* NVMe uses one PRP for each page (or part of a page)
|
|
* look at the data length - if 4 pages or less then IEEE is OK
|
|
* if > 5 pages then we need to build a native SGL
|
|
* if > 4 and <= 5 pages, then check physical address of 1st SG entry
|
|
* if this first size in the page is >= the residual beyond 4 pages
|
|
* then use IEEE, otherwise use native SGL
|
|
*/
|
|
|
|
if (data_length > (mr_nvme_pg_size * 5)) {
|
|
build_prp = true;
|
|
} else if ((data_length > (mr_nvme_pg_size * 4)) &&
|
|
(data_length <= (mr_nvme_pg_size * 5))) {
|
|
/* check if 1st SG entry size is < residual beyond 4 pages */
|
|
if (sg_dma_len(sg_scmd) < (data_length - (mr_nvme_pg_size * 4)))
|
|
build_prp = true;
|
|
}
|
|
|
|
/*
|
|
* Below code detects gaps/holes in IO data buffers.
|
|
* What does holes/gaps mean?
|
|
* Any SGE except first one in a SGL starts at non NVME page size
|
|
* aligned address OR Any SGE except last one in a SGL ends at
|
|
* non NVME page size boundary.
|
|
*
|
|
* Driver has already informed block layer by setting boundary rules for
|
|
* bio merging done at NVME page size boundary calling kernel API
|
|
* blk_queue_virt_boundary inside slave_config.
|
|
* Still there is possibility of IO coming with holes to driver because of
|
|
* IO merging done by IO scheduler.
|
|
*
|
|
* With SCSI BLK MQ enabled, there will be no IO with holes as there is no
|
|
* IO scheduling so no IO merging.
|
|
*
|
|
* With SCSI BLK MQ disabled, IO scheduler may attempt to merge IOs and
|
|
* then sending IOs with holes.
|
|
*
|
|
* Though driver can request block layer to disable IO merging by calling-
|
|
* blk_queue_flag_set(QUEUE_FLAG_NOMERGES, sdev->request_queue) but
|
|
* user may tune sysfs parameter- nomerges again to 0 or 1.
|
|
*
|
|
* If in future IO scheduling is enabled with SCSI BLK MQ,
|
|
* this algorithm to detect holes will be required in driver
|
|
* for SCSI BLK MQ enabled case as well.
|
|
*
|
|
*
|
|
*/
|
|
scsi_for_each_sg(scmd, sg_scmd, sge_count, i) {
|
|
if ((i != 0) && (i != (sge_count - 1))) {
|
|
if (mega_mod64(sg_dma_len(sg_scmd), mr_nvme_pg_size) ||
|
|
mega_mod64(sg_dma_address(sg_scmd),
|
|
mr_nvme_pg_size)) {
|
|
build_prp = false;
|
|
atomic_inc(&instance->sge_holes_type1);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if ((sge_count > 1) && (i == 0)) {
|
|
if ((mega_mod64((sg_dma_address(sg_scmd) +
|
|
sg_dma_len(sg_scmd)),
|
|
mr_nvme_pg_size))) {
|
|
build_prp = false;
|
|
atomic_inc(&instance->sge_holes_type2);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if ((sge_count > 1) && (i == (sge_count - 1))) {
|
|
if (mega_mod64(sg_dma_address(sg_scmd),
|
|
mr_nvme_pg_size)) {
|
|
build_prp = false;
|
|
atomic_inc(&instance->sge_holes_type3);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
return build_prp;
|
|
}
|
|
|
|
/**
|
|
* megasas_make_prp_nvme -
|
|
* Prepare PRPs(Physical Region Page)- SGLs specific to NVMe drives only
|
|
*
|
|
* @instance: Adapter soft state
|
|
* @scmd: SCSI command from the mid-layer
|
|
* @sgl_ptr: SGL to be filled in
|
|
* @cmd: Fusion command frame
|
|
* @sge_count: scatter gather element count.
|
|
*
|
|
* Returns: true: PRPs are built
|
|
* false: IEEE SGLs needs to be built
|
|
*/
|
|
static bool
|
|
megasas_make_prp_nvme(struct megasas_instance *instance, struct scsi_cmnd *scmd,
|
|
struct MPI25_IEEE_SGE_CHAIN64 *sgl_ptr,
|
|
struct megasas_cmd_fusion *cmd, int sge_count)
|
|
{
|
|
int sge_len, offset, num_prp_in_chain = 0;
|
|
struct MPI25_IEEE_SGE_CHAIN64 *main_chain_element, *ptr_first_sgl;
|
|
u64 *ptr_sgl;
|
|
dma_addr_t ptr_sgl_phys;
|
|
u64 sge_addr;
|
|
u32 page_mask, page_mask_result;
|
|
struct scatterlist *sg_scmd;
|
|
u32 first_prp_len;
|
|
bool build_prp = false;
|
|
int data_len = scsi_bufflen(scmd);
|
|
struct fusion_context *fusion;
|
|
u32 mr_nvme_pg_size = max_t(u32, instance->nvme_page_size,
|
|
MR_DEFAULT_NVME_PAGE_SIZE);
|
|
|
|
fusion = instance->ctrl_context;
|
|
|
|
build_prp = megasas_is_prp_possible(instance, scmd, sge_count);
|
|
|
|
if (!build_prp)
|
|
return false;
|
|
|
|
/*
|
|
* Nvme has a very convoluted prp format. One prp is required
|
|
* for each page or partial page. Driver need to split up OS sg_list
|
|
* entries if it is longer than one page or cross a page
|
|
* boundary. Driver also have to insert a PRP list pointer entry as
|
|
* the last entry in each physical page of the PRP list.
|
|
*
|
|
* NOTE: The first PRP "entry" is actually placed in the first
|
|
* SGL entry in the main message as IEEE 64 format. The 2nd
|
|
* entry in the main message is the chain element, and the rest
|
|
* of the PRP entries are built in the contiguous pcie buffer.
|
|
*/
|
|
page_mask = mr_nvme_pg_size - 1;
|
|
ptr_sgl = (u64 *)cmd->sg_frame;
|
|
ptr_sgl_phys = cmd->sg_frame_phys_addr;
|
|
memset(ptr_sgl, 0, instance->max_chain_frame_sz);
|
|
|
|
/* Build chain frame element which holds all prps except first*/
|
|
main_chain_element = (struct MPI25_IEEE_SGE_CHAIN64 *)
|
|
((u8 *)sgl_ptr + sizeof(struct MPI25_IEEE_SGE_CHAIN64));
|
|
|
|
main_chain_element->Address = cpu_to_le64(ptr_sgl_phys);
|
|
main_chain_element->NextChainOffset = 0;
|
|
main_chain_element->Flags = IEEE_SGE_FLAGS_CHAIN_ELEMENT |
|
|
IEEE_SGE_FLAGS_SYSTEM_ADDR |
|
|
MPI26_IEEE_SGE_FLAGS_NSF_NVME_PRP;
|
|
|
|
/* Build first prp, sge need not to be page aligned*/
|
|
ptr_first_sgl = sgl_ptr;
|
|
sg_scmd = scsi_sglist(scmd);
|
|
sge_addr = sg_dma_address(sg_scmd);
|
|
sge_len = sg_dma_len(sg_scmd);
|
|
|
|
offset = (u32)(sge_addr & page_mask);
|
|
first_prp_len = mr_nvme_pg_size - offset;
|
|
|
|
ptr_first_sgl->Address = cpu_to_le64(sge_addr);
|
|
ptr_first_sgl->Length = cpu_to_le32(first_prp_len);
|
|
|
|
data_len -= first_prp_len;
|
|
|
|
if (sge_len > first_prp_len) {
|
|
sge_addr += first_prp_len;
|
|
sge_len -= first_prp_len;
|
|
} else if (sge_len == first_prp_len) {
|
|
sg_scmd = sg_next(sg_scmd);
|
|
sge_addr = sg_dma_address(sg_scmd);
|
|
sge_len = sg_dma_len(sg_scmd);
|
|
}
|
|
|
|
for (;;) {
|
|
offset = (u32)(sge_addr & page_mask);
|
|
|
|
/* Put PRP pointer due to page boundary*/
|
|
page_mask_result = (uintptr_t)(ptr_sgl + 1) & page_mask;
|
|
if (unlikely(!page_mask_result)) {
|
|
scmd_printk(KERN_NOTICE,
|
|
scmd, "page boundary ptr_sgl: 0x%p\n",
|
|
ptr_sgl);
|
|
ptr_sgl_phys += 8;
|
|
*ptr_sgl = cpu_to_le64(ptr_sgl_phys);
|
|
ptr_sgl++;
|
|
num_prp_in_chain++;
|
|
}
|
|
|
|
*ptr_sgl = cpu_to_le64(sge_addr);
|
|
ptr_sgl++;
|
|
ptr_sgl_phys += 8;
|
|
num_prp_in_chain++;
|
|
|
|
sge_addr += mr_nvme_pg_size;
|
|
sge_len -= mr_nvme_pg_size;
|
|
data_len -= mr_nvme_pg_size;
|
|
|
|
if (data_len <= 0)
|
|
break;
|
|
|
|
if (sge_len > 0)
|
|
continue;
|
|
|
|
sg_scmd = sg_next(sg_scmd);
|
|
sge_addr = sg_dma_address(sg_scmd);
|
|
sge_len = sg_dma_len(sg_scmd);
|
|
}
|
|
|
|
main_chain_element->Length =
|
|
cpu_to_le32(num_prp_in_chain * sizeof(u64));
|
|
|
|
atomic_inc(&instance->prp_sgl);
|
|
return build_prp;
|
|
}
|
|
|
|
/**
|
|
* megasas_make_sgl_fusion - Prepares 32-bit SGL
|
|
* @instance: Adapter soft state
|
|
* @scp: SCSI command from the mid-layer
|
|
* @sgl_ptr: SGL to be filled in
|
|
* @cmd: cmd we are working on
|
|
* @sge_count sge count
|
|
*
|
|
*/
|
|
static void
|
|
megasas_make_sgl_fusion(struct megasas_instance *instance,
|
|
struct scsi_cmnd *scp,
|
|
struct MPI25_IEEE_SGE_CHAIN64 *sgl_ptr,
|
|
struct megasas_cmd_fusion *cmd, int sge_count)
|
|
{
|
|
int i, sg_processed;
|
|
struct scatterlist *os_sgl;
|
|
struct fusion_context *fusion;
|
|
|
|
fusion = instance->ctrl_context;
|
|
|
|
if (instance->adapter_type >= INVADER_SERIES) {
|
|
struct MPI25_IEEE_SGE_CHAIN64 *sgl_ptr_end = sgl_ptr;
|
|
sgl_ptr_end += fusion->max_sge_in_main_msg - 1;
|
|
sgl_ptr_end->Flags = 0;
|
|
}
|
|
|
|
scsi_for_each_sg(scp, os_sgl, sge_count, i) {
|
|
sgl_ptr->Length = cpu_to_le32(sg_dma_len(os_sgl));
|
|
sgl_ptr->Address = cpu_to_le64(sg_dma_address(os_sgl));
|
|
sgl_ptr->Flags = 0;
|
|
if (instance->adapter_type >= INVADER_SERIES)
|
|
if (i == sge_count - 1)
|
|
sgl_ptr->Flags = IEEE_SGE_FLAGS_END_OF_LIST;
|
|
sgl_ptr++;
|
|
sg_processed = i + 1;
|
|
|
|
if ((sg_processed == (fusion->max_sge_in_main_msg - 1)) &&
|
|
(sge_count > fusion->max_sge_in_main_msg)) {
|
|
|
|
struct MPI25_IEEE_SGE_CHAIN64 *sg_chain;
|
|
if (instance->adapter_type >= INVADER_SERIES) {
|
|
if ((le16_to_cpu(cmd->io_request->IoFlags) &
|
|
MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH) !=
|
|
MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH)
|
|
cmd->io_request->ChainOffset =
|
|
fusion->
|
|
chain_offset_io_request;
|
|
else
|
|
cmd->io_request->ChainOffset = 0;
|
|
} else
|
|
cmd->io_request->ChainOffset =
|
|
fusion->chain_offset_io_request;
|
|
|
|
sg_chain = sgl_ptr;
|
|
/* Prepare chain element */
|
|
sg_chain->NextChainOffset = 0;
|
|
if (instance->adapter_type >= INVADER_SERIES)
|
|
sg_chain->Flags = IEEE_SGE_FLAGS_CHAIN_ELEMENT;
|
|
else
|
|
sg_chain->Flags =
|
|
(IEEE_SGE_FLAGS_CHAIN_ELEMENT |
|
|
MPI2_IEEE_SGE_FLAGS_IOCPLBNTA_ADDR);
|
|
sg_chain->Length = cpu_to_le32((sizeof(union MPI2_SGE_IO_UNION) * (sge_count - sg_processed)));
|
|
sg_chain->Address = cpu_to_le64(cmd->sg_frame_phys_addr);
|
|
|
|
sgl_ptr =
|
|
(struct MPI25_IEEE_SGE_CHAIN64 *)cmd->sg_frame;
|
|
memset(sgl_ptr, 0, instance->max_chain_frame_sz);
|
|
}
|
|
}
|
|
atomic_inc(&instance->ieee_sgl);
|
|
}
|
|
|
|
/**
|
|
* megasas_make_sgl - Build Scatter Gather List(SGLs)
|
|
* @scp: SCSI command pointer
|
|
* @instance: Soft instance of controller
|
|
* @cmd: Fusion command pointer
|
|
*
|
|
* This function will build sgls based on device type.
|
|
* For nvme drives, there is different way of building sgls in nvme native
|
|
* format- PRPs(Physical Region Page).
|
|
*
|
|
* Returns the number of sg lists actually used, zero if the sg lists
|
|
* is NULL, or -ENOMEM if the mapping failed
|
|
*/
|
|
static
|
|
int megasas_make_sgl(struct megasas_instance *instance, struct scsi_cmnd *scp,
|
|
struct megasas_cmd_fusion *cmd)
|
|
{
|
|
int sge_count;
|
|
bool build_prp = false;
|
|
struct MPI25_IEEE_SGE_CHAIN64 *sgl_chain64;
|
|
|
|
sge_count = scsi_dma_map(scp);
|
|
|
|
if ((sge_count > instance->max_num_sge) || (sge_count <= 0))
|
|
return sge_count;
|
|
|
|
sgl_chain64 = (struct MPI25_IEEE_SGE_CHAIN64 *)&cmd->io_request->SGL;
|
|
if ((le16_to_cpu(cmd->io_request->IoFlags) &
|
|
MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH) &&
|
|
(cmd->pd_interface == NVME_PD))
|
|
build_prp = megasas_make_prp_nvme(instance, scp, sgl_chain64,
|
|
cmd, sge_count);
|
|
|
|
if (!build_prp)
|
|
megasas_make_sgl_fusion(instance, scp, sgl_chain64,
|
|
cmd, sge_count);
|
|
|
|
return sge_count;
|
|
}
|
|
|
|
/**
|
|
* megasas_set_pd_lba - Sets PD LBA
|
|
* @cdb: CDB
|
|
* @cdb_len: cdb length
|
|
* @start_blk: Start block of IO
|
|
*
|
|
* Used to set the PD LBA in CDB for FP IOs
|
|
*/
|
|
void
|
|
megasas_set_pd_lba(struct MPI2_RAID_SCSI_IO_REQUEST *io_request, u8 cdb_len,
|
|
struct IO_REQUEST_INFO *io_info, struct scsi_cmnd *scp,
|
|
struct MR_DRV_RAID_MAP_ALL *local_map_ptr, u32 ref_tag)
|
|
{
|
|
struct MR_LD_RAID *raid;
|
|
u16 ld;
|
|
u64 start_blk = io_info->pdBlock;
|
|
u8 *cdb = io_request->CDB.CDB32;
|
|
u32 num_blocks = io_info->numBlocks;
|
|
u8 opcode = 0, flagvals = 0, groupnum = 0, control = 0;
|
|
|
|
/* Check if T10 PI (DIF) is enabled for this LD */
|
|
ld = MR_TargetIdToLdGet(io_info->ldTgtId, local_map_ptr);
|
|
raid = MR_LdRaidGet(ld, local_map_ptr);
|
|
if (raid->capability.ldPiMode == MR_PROT_INFO_TYPE_CONTROLLER) {
|
|
memset(cdb, 0, sizeof(io_request->CDB.CDB32));
|
|
cdb[0] = MEGASAS_SCSI_VARIABLE_LENGTH_CMD;
|
|
cdb[7] = MEGASAS_SCSI_ADDL_CDB_LEN;
|
|
|
|
if (scp->sc_data_direction == PCI_DMA_FROMDEVICE)
|
|
cdb[9] = MEGASAS_SCSI_SERVICE_ACTION_READ32;
|
|
else
|
|
cdb[9] = MEGASAS_SCSI_SERVICE_ACTION_WRITE32;
|
|
cdb[10] = MEGASAS_RD_WR_PROTECT_CHECK_ALL;
|
|
|
|
/* LBA */
|
|
cdb[12] = (u8)((start_blk >> 56) & 0xff);
|
|
cdb[13] = (u8)((start_blk >> 48) & 0xff);
|
|
cdb[14] = (u8)((start_blk >> 40) & 0xff);
|
|
cdb[15] = (u8)((start_blk >> 32) & 0xff);
|
|
cdb[16] = (u8)((start_blk >> 24) & 0xff);
|
|
cdb[17] = (u8)((start_blk >> 16) & 0xff);
|
|
cdb[18] = (u8)((start_blk >> 8) & 0xff);
|
|
cdb[19] = (u8)(start_blk & 0xff);
|
|
|
|
/* Logical block reference tag */
|
|
io_request->CDB.EEDP32.PrimaryReferenceTag =
|
|
cpu_to_be32(ref_tag);
|
|
io_request->CDB.EEDP32.PrimaryApplicationTagMask = cpu_to_be16(0xffff);
|
|
io_request->IoFlags = cpu_to_le16(32); /* Specify 32-byte cdb */
|
|
|
|
/* Transfer length */
|
|
cdb[28] = (u8)((num_blocks >> 24) & 0xff);
|
|
cdb[29] = (u8)((num_blocks >> 16) & 0xff);
|
|
cdb[30] = (u8)((num_blocks >> 8) & 0xff);
|
|
cdb[31] = (u8)(num_blocks & 0xff);
|
|
|
|
/* set SCSI IO EEDPFlags */
|
|
if (scp->sc_data_direction == PCI_DMA_FROMDEVICE) {
|
|
io_request->EEDPFlags = cpu_to_le16(
|
|
MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG |
|
|
MPI2_SCSIIO_EEDPFLAGS_CHECK_REFTAG |
|
|
MPI2_SCSIIO_EEDPFLAGS_CHECK_REMOVE_OP |
|
|
MPI2_SCSIIO_EEDPFLAGS_CHECK_APPTAG |
|
|
MPI25_SCSIIO_EEDPFLAGS_DO_NOT_DISABLE_MODE |
|
|
MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD);
|
|
} else {
|
|
io_request->EEDPFlags = cpu_to_le16(
|
|
MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG |
|
|
MPI2_SCSIIO_EEDPFLAGS_INSERT_OP);
|
|
}
|
|
io_request->Control |= cpu_to_le32((0x4 << 26));
|
|
io_request->EEDPBlockSize = cpu_to_le32(scp->device->sector_size);
|
|
} else {
|
|
/* Some drives don't support 16/12 byte CDB's, convert to 10 */
|
|
if (((cdb_len == 12) || (cdb_len == 16)) &&
|
|
(start_blk <= 0xffffffff)) {
|
|
if (cdb_len == 16) {
|
|
opcode = cdb[0] == READ_16 ? READ_10 : WRITE_10;
|
|
flagvals = cdb[1];
|
|
groupnum = cdb[14];
|
|
control = cdb[15];
|
|
} else {
|
|
opcode = cdb[0] == READ_12 ? READ_10 : WRITE_10;
|
|
flagvals = cdb[1];
|
|
groupnum = cdb[10];
|
|
control = cdb[11];
|
|
}
|
|
|
|
memset(cdb, 0, sizeof(io_request->CDB.CDB32));
|
|
|
|
cdb[0] = opcode;
|
|
cdb[1] = flagvals;
|
|
cdb[6] = groupnum;
|
|
cdb[9] = control;
|
|
|
|
/* Transfer length */
|
|
cdb[8] = (u8)(num_blocks & 0xff);
|
|
cdb[7] = (u8)((num_blocks >> 8) & 0xff);
|
|
|
|
io_request->IoFlags = cpu_to_le16(10); /* Specify 10-byte cdb */
|
|
cdb_len = 10;
|
|
} else if ((cdb_len < 16) && (start_blk > 0xffffffff)) {
|
|
/* Convert to 16 byte CDB for large LBA's */
|
|
switch (cdb_len) {
|
|
case 6:
|
|
opcode = cdb[0] == READ_6 ? READ_16 : WRITE_16;
|
|
control = cdb[5];
|
|
break;
|
|
case 10:
|
|
opcode =
|
|
cdb[0] == READ_10 ? READ_16 : WRITE_16;
|
|
flagvals = cdb[1];
|
|
groupnum = cdb[6];
|
|
control = cdb[9];
|
|
break;
|
|
case 12:
|
|
opcode =
|
|
cdb[0] == READ_12 ? READ_16 : WRITE_16;
|
|
flagvals = cdb[1];
|
|
groupnum = cdb[10];
|
|
control = cdb[11];
|
|
break;
|
|
}
|
|
|
|
memset(cdb, 0, sizeof(io_request->CDB.CDB32));
|
|
|
|
cdb[0] = opcode;
|
|
cdb[1] = flagvals;
|
|
cdb[14] = groupnum;
|
|
cdb[15] = control;
|
|
|
|
/* Transfer length */
|
|
cdb[13] = (u8)(num_blocks & 0xff);
|
|
cdb[12] = (u8)((num_blocks >> 8) & 0xff);
|
|
cdb[11] = (u8)((num_blocks >> 16) & 0xff);
|
|
cdb[10] = (u8)((num_blocks >> 24) & 0xff);
|
|
|
|
io_request->IoFlags = cpu_to_le16(16); /* Specify 16-byte cdb */
|
|
cdb_len = 16;
|
|
}
|
|
|
|
/* Normal case, just load LBA here */
|
|
switch (cdb_len) {
|
|
case 6:
|
|
{
|
|
u8 val = cdb[1] & 0xE0;
|
|
cdb[3] = (u8)(start_blk & 0xff);
|
|
cdb[2] = (u8)((start_blk >> 8) & 0xff);
|
|
cdb[1] = val | ((u8)(start_blk >> 16) & 0x1f);
|
|
break;
|
|
}
|
|
case 10:
|
|
cdb[5] = (u8)(start_blk & 0xff);
|
|
cdb[4] = (u8)((start_blk >> 8) & 0xff);
|
|
cdb[3] = (u8)((start_blk >> 16) & 0xff);
|
|
cdb[2] = (u8)((start_blk >> 24) & 0xff);
|
|
break;
|
|
case 12:
|
|
cdb[5] = (u8)(start_blk & 0xff);
|
|
cdb[4] = (u8)((start_blk >> 8) & 0xff);
|
|
cdb[3] = (u8)((start_blk >> 16) & 0xff);
|
|
cdb[2] = (u8)((start_blk >> 24) & 0xff);
|
|
break;
|
|
case 16:
|
|
cdb[9] = (u8)(start_blk & 0xff);
|
|
cdb[8] = (u8)((start_blk >> 8) & 0xff);
|
|
cdb[7] = (u8)((start_blk >> 16) & 0xff);
|
|
cdb[6] = (u8)((start_blk >> 24) & 0xff);
|
|
cdb[5] = (u8)((start_blk >> 32) & 0xff);
|
|
cdb[4] = (u8)((start_blk >> 40) & 0xff);
|
|
cdb[3] = (u8)((start_blk >> 48) & 0xff);
|
|
cdb[2] = (u8)((start_blk >> 56) & 0xff);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* megasas_stream_detect - stream detection on read and and write IOs
|
|
* @instance: Adapter soft state
|
|
* @cmd: Command to be prepared
|
|
* @io_info: IO Request info
|
|
*
|
|
*/
|
|
|
|
/** stream detection on read and and write IOs */
|
|
static void megasas_stream_detect(struct megasas_instance *instance,
|
|
struct megasas_cmd_fusion *cmd,
|
|
struct IO_REQUEST_INFO *io_info)
|
|
{
|
|
struct fusion_context *fusion = instance->ctrl_context;
|
|
u32 device_id = io_info->ldTgtId;
|
|
struct LD_STREAM_DETECT *current_ld_sd
|
|
= fusion->stream_detect_by_ld[device_id];
|
|
u32 *track_stream = ¤t_ld_sd->mru_bit_map, stream_num;
|
|
u32 shifted_values, unshifted_values;
|
|
u32 index_value_mask, shifted_values_mask;
|
|
int i;
|
|
bool is_read_ahead = false;
|
|
struct STREAM_DETECT *current_sd;
|
|
/* find possible stream */
|
|
for (i = 0; i < MAX_STREAMS_TRACKED; ++i) {
|
|
stream_num = (*track_stream >>
|
|
(i * BITS_PER_INDEX_STREAM)) &
|
|
STREAM_MASK;
|
|
current_sd = ¤t_ld_sd->stream_track[stream_num];
|
|
/* if we found a stream, update the raid
|
|
* context and also update the mruBitMap
|
|
*/
|
|
/* boundary condition */
|
|
if ((current_sd->next_seq_lba) &&
|
|
(io_info->ldStartBlock >= current_sd->next_seq_lba) &&
|
|
(io_info->ldStartBlock <= (current_sd->next_seq_lba + 32)) &&
|
|
(current_sd->is_read == io_info->isRead)) {
|
|
|
|
if ((io_info->ldStartBlock != current_sd->next_seq_lba) &&
|
|
((!io_info->isRead) || (!is_read_ahead)))
|
|
/*
|
|
* Once the API availible we need to change this.
|
|
* At this point we are not allowing any gap
|
|
*/
|
|
continue;
|
|
|
|
SET_STREAM_DETECTED(cmd->io_request->RaidContext.raid_context_g35);
|
|
current_sd->next_seq_lba =
|
|
io_info->ldStartBlock + io_info->numBlocks;
|
|
/*
|
|
* update the mruBitMap LRU
|
|
*/
|
|
shifted_values_mask =
|
|
(1 << i * BITS_PER_INDEX_STREAM) - 1;
|
|
shifted_values = ((*track_stream & shifted_values_mask)
|
|
<< BITS_PER_INDEX_STREAM);
|
|
index_value_mask =
|
|
STREAM_MASK << i * BITS_PER_INDEX_STREAM;
|
|
unshifted_values =
|
|
*track_stream & ~(shifted_values_mask |
|
|
index_value_mask);
|
|
*track_stream =
|
|
unshifted_values | shifted_values | stream_num;
|
|
return;
|
|
}
|
|
}
|
|
/*
|
|
* if we did not find any stream, create a new one
|
|
* from the least recently used
|
|
*/
|
|
stream_num = (*track_stream >>
|
|
((MAX_STREAMS_TRACKED - 1) * BITS_PER_INDEX_STREAM)) &
|
|
STREAM_MASK;
|
|
current_sd = ¤t_ld_sd->stream_track[stream_num];
|
|
current_sd->is_read = io_info->isRead;
|
|
current_sd->next_seq_lba = io_info->ldStartBlock + io_info->numBlocks;
|
|
*track_stream = (((*track_stream & ZERO_LAST_STREAM) << 4) | stream_num);
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* megasas_set_raidflag_cpu_affinity - This function sets the cpu
|
|
* affinity (cpu of the controller) and raid_flags in the raid context
|
|
* based on IO type.
|
|
*
|
|
* @praid_context: IO RAID context
|
|
* @raid: LD raid map
|
|
* @fp_possible: Is fast path possible?
|
|
* @is_read: Is read IO?
|
|
*
|
|
*/
|
|
static void
|
|
megasas_set_raidflag_cpu_affinity(union RAID_CONTEXT_UNION *praid_context,
|
|
struct MR_LD_RAID *raid, bool fp_possible,
|
|
u8 is_read, u32 scsi_buff_len)
|
|
{
|
|
u8 cpu_sel = MR_RAID_CTX_CPUSEL_0;
|
|
struct RAID_CONTEXT_G35 *rctx_g35;
|
|
|
|
rctx_g35 = &praid_context->raid_context_g35;
|
|
if (fp_possible) {
|
|
if (is_read) {
|
|
if ((raid->cpuAffinity.pdRead.cpu0) &&
|
|
(raid->cpuAffinity.pdRead.cpu1))
|
|
cpu_sel = MR_RAID_CTX_CPUSEL_FCFS;
|
|
else if (raid->cpuAffinity.pdRead.cpu1)
|
|
cpu_sel = MR_RAID_CTX_CPUSEL_1;
|
|
} else {
|
|
if ((raid->cpuAffinity.pdWrite.cpu0) &&
|
|
(raid->cpuAffinity.pdWrite.cpu1))
|
|
cpu_sel = MR_RAID_CTX_CPUSEL_FCFS;
|
|
else if (raid->cpuAffinity.pdWrite.cpu1)
|
|
cpu_sel = MR_RAID_CTX_CPUSEL_1;
|
|
/* Fast path cache by pass capable R0/R1 VD */
|
|
if ((raid->level <= 1) &&
|
|
(raid->capability.fp_cache_bypass_capable)) {
|
|
rctx_g35->routing_flags |=
|
|
(1 << MR_RAID_CTX_ROUTINGFLAGS_SLD_SHIFT);
|
|
rctx_g35->raid_flags =
|
|
(MR_RAID_FLAGS_IO_SUB_TYPE_CACHE_BYPASS
|
|
<< MR_RAID_CTX_RAID_FLAGS_IO_SUB_TYPE_SHIFT);
|
|
}
|
|
}
|
|
} else {
|
|
if (is_read) {
|
|
if ((raid->cpuAffinity.ldRead.cpu0) &&
|
|
(raid->cpuAffinity.ldRead.cpu1))
|
|
cpu_sel = MR_RAID_CTX_CPUSEL_FCFS;
|
|
else if (raid->cpuAffinity.ldRead.cpu1)
|
|
cpu_sel = MR_RAID_CTX_CPUSEL_1;
|
|
} else {
|
|
if ((raid->cpuAffinity.ldWrite.cpu0) &&
|
|
(raid->cpuAffinity.ldWrite.cpu1))
|
|
cpu_sel = MR_RAID_CTX_CPUSEL_FCFS;
|
|
else if (raid->cpuAffinity.ldWrite.cpu1)
|
|
cpu_sel = MR_RAID_CTX_CPUSEL_1;
|
|
|
|
if (is_stream_detected(rctx_g35) &&
|
|
((raid->level == 5) || (raid->level == 6)) &&
|
|
(raid->writeMode == MR_RL_WRITE_THROUGH_MODE) &&
|
|
(cpu_sel == MR_RAID_CTX_CPUSEL_FCFS))
|
|
cpu_sel = MR_RAID_CTX_CPUSEL_0;
|
|
}
|
|
}
|
|
|
|
rctx_g35->routing_flags |=
|
|
(cpu_sel << MR_RAID_CTX_ROUTINGFLAGS_CPUSEL_SHIFT);
|
|
|
|
/* Always give priority to MR_RAID_FLAGS_IO_SUB_TYPE_LDIO_BW_LIMIT
|
|
* vs MR_RAID_FLAGS_IO_SUB_TYPE_CACHE_BYPASS.
|
|
* IO Subtype is not bitmap.
|
|
*/
|
|
if ((raid->level == 1) && (!is_read)) {
|
|
if (scsi_buff_len > MR_LARGE_IO_MIN_SIZE)
|
|
praid_context->raid_context_g35.raid_flags =
|
|
(MR_RAID_FLAGS_IO_SUB_TYPE_LDIO_BW_LIMIT
|
|
<< MR_RAID_CTX_RAID_FLAGS_IO_SUB_TYPE_SHIFT);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* megasas_build_ldio_fusion - Prepares IOs to devices
|
|
* @instance: Adapter soft state
|
|
* @scp: SCSI command
|
|
* @cmd: Command to be prepared
|
|
*
|
|
* Prepares the io_request and chain elements (sg_frame) for IO
|
|
* The IO can be for PD (Fast Path) or LD
|
|
*/
|
|
void
|
|
megasas_build_ldio_fusion(struct megasas_instance *instance,
|
|
struct scsi_cmnd *scp,
|
|
struct megasas_cmd_fusion *cmd)
|
|
{
|
|
bool fp_possible;
|
|
u16 ld;
|
|
u32 start_lba_lo, start_lba_hi, device_id, datalength = 0;
|
|
u32 scsi_buff_len;
|
|
struct MPI2_RAID_SCSI_IO_REQUEST *io_request;
|
|
union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc;
|
|
struct IO_REQUEST_INFO io_info;
|
|
struct fusion_context *fusion;
|
|
struct MR_DRV_RAID_MAP_ALL *local_map_ptr;
|
|
u8 *raidLUN;
|
|
unsigned long spinlock_flags;
|
|
union RAID_CONTEXT_UNION *praid_context;
|
|
struct MR_LD_RAID *raid = NULL;
|
|
struct MR_PRIV_DEVICE *mrdev_priv;
|
|
|
|
device_id = MEGASAS_DEV_INDEX(scp);
|
|
|
|
fusion = instance->ctrl_context;
|
|
|
|
io_request = cmd->io_request;
|
|
io_request->RaidContext.raid_context.virtual_disk_tgt_id =
|
|
cpu_to_le16(device_id);
|
|
io_request->RaidContext.raid_context.status = 0;
|
|
io_request->RaidContext.raid_context.ex_status = 0;
|
|
|
|
req_desc = (union MEGASAS_REQUEST_DESCRIPTOR_UNION *)cmd->request_desc;
|
|
|
|
start_lba_lo = 0;
|
|
start_lba_hi = 0;
|
|
fp_possible = false;
|
|
|
|
/*
|
|
* 6-byte READ(0x08) or WRITE(0x0A) cdb
|
|
*/
|
|
if (scp->cmd_len == 6) {
|
|
datalength = (u32) scp->cmnd[4];
|
|
start_lba_lo = ((u32) scp->cmnd[1] << 16) |
|
|
((u32) scp->cmnd[2] << 8) | (u32) scp->cmnd[3];
|
|
|
|
start_lba_lo &= 0x1FFFFF;
|
|
}
|
|
|
|
/*
|
|
* 10-byte READ(0x28) or WRITE(0x2A) cdb
|
|
*/
|
|
else if (scp->cmd_len == 10) {
|
|
datalength = (u32) scp->cmnd[8] |
|
|
((u32) scp->cmnd[7] << 8);
|
|
start_lba_lo = ((u32) scp->cmnd[2] << 24) |
|
|
((u32) scp->cmnd[3] << 16) |
|
|
((u32) scp->cmnd[4] << 8) | (u32) scp->cmnd[5];
|
|
}
|
|
|
|
/*
|
|
* 12-byte READ(0xA8) or WRITE(0xAA) cdb
|
|
*/
|
|
else if (scp->cmd_len == 12) {
|
|
datalength = ((u32) scp->cmnd[6] << 24) |
|
|
((u32) scp->cmnd[7] << 16) |
|
|
((u32) scp->cmnd[8] << 8) | (u32) scp->cmnd[9];
|
|
start_lba_lo = ((u32) scp->cmnd[2] << 24) |
|
|
((u32) scp->cmnd[3] << 16) |
|
|
((u32) scp->cmnd[4] << 8) | (u32) scp->cmnd[5];
|
|
}
|
|
|
|
/*
|
|
* 16-byte READ(0x88) or WRITE(0x8A) cdb
|
|
*/
|
|
else if (scp->cmd_len == 16) {
|
|
datalength = ((u32) scp->cmnd[10] << 24) |
|
|
((u32) scp->cmnd[11] << 16) |
|
|
((u32) scp->cmnd[12] << 8) | (u32) scp->cmnd[13];
|
|
start_lba_lo = ((u32) scp->cmnd[6] << 24) |
|
|
((u32) scp->cmnd[7] << 16) |
|
|
((u32) scp->cmnd[8] << 8) | (u32) scp->cmnd[9];
|
|
|
|
start_lba_hi = ((u32) scp->cmnd[2] << 24) |
|
|
((u32) scp->cmnd[3] << 16) |
|
|
((u32) scp->cmnd[4] << 8) | (u32) scp->cmnd[5];
|
|
}
|
|
|
|
memset(&io_info, 0, sizeof(struct IO_REQUEST_INFO));
|
|
io_info.ldStartBlock = ((u64)start_lba_hi << 32) | start_lba_lo;
|
|
io_info.numBlocks = datalength;
|
|
io_info.ldTgtId = device_id;
|
|
io_info.r1_alt_dev_handle = MR_DEVHANDLE_INVALID;
|
|
scsi_buff_len = scsi_bufflen(scp);
|
|
io_request->DataLength = cpu_to_le32(scsi_buff_len);
|
|
|
|
if (scp->sc_data_direction == PCI_DMA_FROMDEVICE)
|
|
io_info.isRead = 1;
|
|
|
|
local_map_ptr = fusion->ld_drv_map[(instance->map_id & 1)];
|
|
ld = MR_TargetIdToLdGet(device_id, local_map_ptr);
|
|
|
|
if (ld < instance->fw_supported_vd_count)
|
|
raid = MR_LdRaidGet(ld, local_map_ptr);
|
|
|
|
if (!raid || (!fusion->fast_path_io)) {
|
|
io_request->RaidContext.raid_context.reg_lock_flags = 0;
|
|
fp_possible = false;
|
|
} else {
|
|
if (MR_BuildRaidContext(instance, &io_info,
|
|
&io_request->RaidContext.raid_context,
|
|
local_map_ptr, &raidLUN))
|
|
fp_possible = (io_info.fpOkForIo > 0) ? true : false;
|
|
}
|
|
|
|
cmd->request_desc->SCSIIO.MSIxIndex =
|
|
instance->reply_map[raw_smp_processor_id()];
|
|
|
|
praid_context = &io_request->RaidContext;
|
|
|
|
if (instance->adapter_type == VENTURA_SERIES) {
|
|
/* FP for Optimal raid level 1.
|
|
* All large RAID-1 writes (> 32 KiB, both WT and WB modes)
|
|
* are built by the driver as LD I/Os.
|
|
* All small RAID-1 WT writes (<= 32 KiB) are built as FP I/Os
|
|
* (there is never a reason to process these as buffered writes)
|
|
* All small RAID-1 WB writes (<= 32 KiB) are built as FP I/Os
|
|
* with the SLD bit asserted.
|
|
*/
|
|
if (io_info.r1_alt_dev_handle != MR_DEVHANDLE_INVALID) {
|
|
mrdev_priv = scp->device->hostdata;
|
|
|
|
if (atomic_inc_return(&instance->fw_outstanding) >
|
|
(instance->host->can_queue)) {
|
|
fp_possible = false;
|
|
atomic_dec(&instance->fw_outstanding);
|
|
} else if ((scsi_buff_len > MR_LARGE_IO_MIN_SIZE) ||
|
|
(atomic_dec_if_positive(&mrdev_priv->r1_ldio_hint) > 0)) {
|
|
fp_possible = false;
|
|
atomic_dec(&instance->fw_outstanding);
|
|
if (scsi_buff_len > MR_LARGE_IO_MIN_SIZE)
|
|
atomic_set(&mrdev_priv->r1_ldio_hint,
|
|
instance->r1_ldio_hint_default);
|
|
}
|
|
}
|
|
|
|
if (!fp_possible ||
|
|
(io_info.isRead && io_info.ra_capable)) {
|
|
spin_lock_irqsave(&instance->stream_lock,
|
|
spinlock_flags);
|
|
megasas_stream_detect(instance, cmd, &io_info);
|
|
spin_unlock_irqrestore(&instance->stream_lock,
|
|
spinlock_flags);
|
|
/* In ventura if stream detected for a read and it is
|
|
* read ahead capable make this IO as LDIO
|
|
*/
|
|
if (is_stream_detected(&io_request->RaidContext.raid_context_g35))
|
|
fp_possible = false;
|
|
}
|
|
|
|
/* If raid is NULL, set CPU affinity to default CPU0 */
|
|
if (raid)
|
|
megasas_set_raidflag_cpu_affinity(praid_context,
|
|
raid, fp_possible, io_info.isRead,
|
|
scsi_buff_len);
|
|
else
|
|
praid_context->raid_context_g35.routing_flags |=
|
|
(MR_RAID_CTX_CPUSEL_0 << MR_RAID_CTX_ROUTINGFLAGS_CPUSEL_SHIFT);
|
|
}
|
|
|
|
if (fp_possible) {
|
|
megasas_set_pd_lba(io_request, scp->cmd_len, &io_info, scp,
|
|
local_map_ptr, start_lba_lo);
|
|
io_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
|
|
cmd->request_desc->SCSIIO.RequestFlags =
|
|
(MPI2_REQ_DESCRIPT_FLAGS_FP_IO
|
|
<< MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
|
|
if (instance->adapter_type == INVADER_SERIES) {
|
|
if (io_request->RaidContext.raid_context.reg_lock_flags ==
|
|
REGION_TYPE_UNUSED)
|
|
cmd->request_desc->SCSIIO.RequestFlags =
|
|
(MEGASAS_REQ_DESCRIPT_FLAGS_NO_LOCK <<
|
|
MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
|
|
io_request->RaidContext.raid_context.type
|
|
= MPI2_TYPE_CUDA;
|
|
io_request->RaidContext.raid_context.nseg = 0x1;
|
|
io_request->IoFlags |= cpu_to_le16(MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH);
|
|
io_request->RaidContext.raid_context.reg_lock_flags |=
|
|
(MR_RL_FLAGS_GRANT_DESTINATION_CUDA |
|
|
MR_RL_FLAGS_SEQ_NUM_ENABLE);
|
|
} else if (instance->adapter_type == VENTURA_SERIES) {
|
|
io_request->RaidContext.raid_context_g35.nseg_type |=
|
|
(1 << RAID_CONTEXT_NSEG_SHIFT);
|
|
io_request->RaidContext.raid_context_g35.nseg_type |=
|
|
(MPI2_TYPE_CUDA << RAID_CONTEXT_TYPE_SHIFT);
|
|
io_request->RaidContext.raid_context_g35.routing_flags |=
|
|
(1 << MR_RAID_CTX_ROUTINGFLAGS_SQN_SHIFT);
|
|
io_request->IoFlags |=
|
|
cpu_to_le16(MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH);
|
|
}
|
|
if (fusion->load_balance_info &&
|
|
(fusion->load_balance_info[device_id].loadBalanceFlag) &&
|
|
(io_info.isRead)) {
|
|
io_info.devHandle =
|
|
get_updated_dev_handle(instance,
|
|
&fusion->load_balance_info[device_id],
|
|
&io_info, local_map_ptr);
|
|
scp->SCp.Status |= MEGASAS_LOAD_BALANCE_FLAG;
|
|
cmd->pd_r1_lb = io_info.pd_after_lb;
|
|
if (instance->adapter_type == VENTURA_SERIES)
|
|
io_request->RaidContext.raid_context_g35.span_arm
|
|
= io_info.span_arm;
|
|
else
|
|
io_request->RaidContext.raid_context.span_arm
|
|
= io_info.span_arm;
|
|
|
|
} else
|
|
scp->SCp.Status &= ~MEGASAS_LOAD_BALANCE_FLAG;
|
|
|
|
if (instance->adapter_type == VENTURA_SERIES)
|
|
cmd->r1_alt_dev_handle = io_info.r1_alt_dev_handle;
|
|
else
|
|
cmd->r1_alt_dev_handle = MR_DEVHANDLE_INVALID;
|
|
|
|
if ((raidLUN[0] == 1) &&
|
|
(local_map_ptr->raidMap.devHndlInfo[io_info.pd_after_lb].validHandles > 1)) {
|
|
instance->dev_handle = !(instance->dev_handle);
|
|
io_info.devHandle =
|
|
local_map_ptr->raidMap.devHndlInfo[io_info.pd_after_lb].devHandle[instance->dev_handle];
|
|
}
|
|
|
|
cmd->request_desc->SCSIIO.DevHandle = io_info.devHandle;
|
|
io_request->DevHandle = io_info.devHandle;
|
|
cmd->pd_interface = io_info.pd_interface;
|
|
/* populate the LUN field */
|
|
memcpy(io_request->LUN, raidLUN, 8);
|
|
} else {
|
|
io_request->RaidContext.raid_context.timeout_value =
|
|
cpu_to_le16(local_map_ptr->raidMap.fpPdIoTimeoutSec);
|
|
cmd->request_desc->SCSIIO.RequestFlags =
|
|
(MEGASAS_REQ_DESCRIPT_FLAGS_LD_IO
|
|
<< MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
|
|
if (instance->adapter_type == INVADER_SERIES) {
|
|
if (io_info.do_fp_rlbypass ||
|
|
(io_request->RaidContext.raid_context.reg_lock_flags
|
|
== REGION_TYPE_UNUSED))
|
|
cmd->request_desc->SCSIIO.RequestFlags =
|
|
(MEGASAS_REQ_DESCRIPT_FLAGS_NO_LOCK <<
|
|
MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
|
|
io_request->RaidContext.raid_context.type
|
|
= MPI2_TYPE_CUDA;
|
|
io_request->RaidContext.raid_context.reg_lock_flags |=
|
|
(MR_RL_FLAGS_GRANT_DESTINATION_CPU0 |
|
|
MR_RL_FLAGS_SEQ_NUM_ENABLE);
|
|
io_request->RaidContext.raid_context.nseg = 0x1;
|
|
} else if (instance->adapter_type == VENTURA_SERIES) {
|
|
io_request->RaidContext.raid_context_g35.routing_flags |=
|
|
(1 << MR_RAID_CTX_ROUTINGFLAGS_SQN_SHIFT);
|
|
io_request->RaidContext.raid_context_g35.nseg_type |=
|
|
(1 << RAID_CONTEXT_NSEG_SHIFT);
|
|
io_request->RaidContext.raid_context_g35.nseg_type |=
|
|
(MPI2_TYPE_CUDA << RAID_CONTEXT_TYPE_SHIFT);
|
|
}
|
|
io_request->Function = MEGASAS_MPI2_FUNCTION_LD_IO_REQUEST;
|
|
io_request->DevHandle = cpu_to_le16(device_id);
|
|
|
|
} /* Not FP */
|
|
}
|
|
|
|
/**
|
|
* megasas_build_ld_nonrw_fusion - prepares non rw ios for virtual disk
|
|
* @instance: Adapter soft state
|
|
* @scp: SCSI command
|
|
* @cmd: Command to be prepared
|
|
*
|
|
* Prepares the io_request frame for non-rw io cmds for vd.
|
|
*/
|
|
static void megasas_build_ld_nonrw_fusion(struct megasas_instance *instance,
|
|
struct scsi_cmnd *scmd, struct megasas_cmd_fusion *cmd)
|
|
{
|
|
u32 device_id;
|
|
struct MPI2_RAID_SCSI_IO_REQUEST *io_request;
|
|
u16 ld;
|
|
struct MR_DRV_RAID_MAP_ALL *local_map_ptr;
|
|
struct fusion_context *fusion = instance->ctrl_context;
|
|
u8 span, physArm;
|
|
__le16 devHandle;
|
|
u32 arRef, pd;
|
|
struct MR_LD_RAID *raid;
|
|
struct RAID_CONTEXT *pRAID_Context;
|
|
u8 fp_possible = 1;
|
|
|
|
io_request = cmd->io_request;
|
|
device_id = MEGASAS_DEV_INDEX(scmd);
|
|
local_map_ptr = fusion->ld_drv_map[(instance->map_id & 1)];
|
|
io_request->DataLength = cpu_to_le32(scsi_bufflen(scmd));
|
|
/* get RAID_Context pointer */
|
|
pRAID_Context = &io_request->RaidContext.raid_context;
|
|
/* Check with FW team */
|
|
pRAID_Context->virtual_disk_tgt_id = cpu_to_le16(device_id);
|
|
pRAID_Context->reg_lock_row_lba = 0;
|
|
pRAID_Context->reg_lock_length = 0;
|
|
|
|
if (fusion->fast_path_io && (
|
|
device_id < instance->fw_supported_vd_count)) {
|
|
|
|
ld = MR_TargetIdToLdGet(device_id, local_map_ptr);
|
|
if (ld >= instance->fw_supported_vd_count)
|
|
fp_possible = 0;
|
|
else {
|
|
raid = MR_LdRaidGet(ld, local_map_ptr);
|
|
if (!(raid->capability.fpNonRWCapable))
|
|
fp_possible = 0;
|
|
}
|
|
} else
|
|
fp_possible = 0;
|
|
|
|
if (!fp_possible) {
|
|
io_request->Function = MEGASAS_MPI2_FUNCTION_LD_IO_REQUEST;
|
|
io_request->DevHandle = cpu_to_le16(device_id);
|
|
io_request->LUN[1] = scmd->device->lun;
|
|
pRAID_Context->timeout_value =
|
|
cpu_to_le16 (scmd->request->timeout / HZ);
|
|
cmd->request_desc->SCSIIO.RequestFlags =
|
|
(MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO <<
|
|
MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
|
|
} else {
|
|
|
|
/* set RAID context values */
|
|
pRAID_Context->config_seq_num = raid->seqNum;
|
|
if (instance->adapter_type != VENTURA_SERIES)
|
|
pRAID_Context->reg_lock_flags = REGION_TYPE_SHARED_READ;
|
|
pRAID_Context->timeout_value =
|
|
cpu_to_le16(raid->fpIoTimeoutForLd);
|
|
|
|
/* get the DevHandle for the PD (since this is
|
|
fpNonRWCapable, this is a single disk RAID0) */
|
|
span = physArm = 0;
|
|
arRef = MR_LdSpanArrayGet(ld, span, local_map_ptr);
|
|
pd = MR_ArPdGet(arRef, physArm, local_map_ptr);
|
|
devHandle = MR_PdDevHandleGet(pd, local_map_ptr);
|
|
|
|
/* build request descriptor */
|
|
cmd->request_desc->SCSIIO.RequestFlags =
|
|
(MPI2_REQ_DESCRIPT_FLAGS_FP_IO <<
|
|
MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
|
|
cmd->request_desc->SCSIIO.DevHandle = devHandle;
|
|
|
|
/* populate the LUN field */
|
|
memcpy(io_request->LUN, raid->LUN, 8);
|
|
|
|
/* build the raidScsiIO structure */
|
|
io_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
|
|
io_request->DevHandle = devHandle;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* megasas_build_syspd_fusion - prepares rw/non-rw ios for syspd
|
|
* @instance: Adapter soft state
|
|
* @scp: SCSI command
|
|
* @cmd: Command to be prepared
|
|
* @fp_possible: parameter to detect fast path or firmware path io.
|
|
*
|
|
* Prepares the io_request frame for rw/non-rw io cmds for syspds
|
|
*/
|
|
static void
|
|
megasas_build_syspd_fusion(struct megasas_instance *instance,
|
|
struct scsi_cmnd *scmd, struct megasas_cmd_fusion *cmd,
|
|
bool fp_possible)
|
|
{
|
|
u32 device_id;
|
|
struct MPI2_RAID_SCSI_IO_REQUEST *io_request;
|
|
u16 pd_index = 0;
|
|
u16 os_timeout_value;
|
|
u16 timeout_limit;
|
|
struct MR_DRV_RAID_MAP_ALL *local_map_ptr;
|
|
struct RAID_CONTEXT *pRAID_Context;
|
|
struct MR_PD_CFG_SEQ_NUM_SYNC *pd_sync;
|
|
struct MR_PRIV_DEVICE *mr_device_priv_data;
|
|
struct fusion_context *fusion = instance->ctrl_context;
|
|
pd_sync = (void *)fusion->pd_seq_sync[(instance->pd_seq_map_id - 1) & 1];
|
|
|
|
device_id = MEGASAS_DEV_INDEX(scmd);
|
|
pd_index = MEGASAS_PD_INDEX(scmd);
|
|
os_timeout_value = scmd->request->timeout / HZ;
|
|
mr_device_priv_data = scmd->device->hostdata;
|
|
cmd->pd_interface = mr_device_priv_data->interface_type;
|
|
|
|
io_request = cmd->io_request;
|
|
/* get RAID_Context pointer */
|
|
pRAID_Context = &io_request->RaidContext.raid_context;
|
|
pRAID_Context->reg_lock_flags = 0;
|
|
pRAID_Context->reg_lock_row_lba = 0;
|
|
pRAID_Context->reg_lock_length = 0;
|
|
io_request->DataLength = cpu_to_le32(scsi_bufflen(scmd));
|
|
io_request->LUN[1] = scmd->device->lun;
|
|
pRAID_Context->raid_flags = MR_RAID_FLAGS_IO_SUB_TYPE_SYSTEM_PD
|
|
<< MR_RAID_CTX_RAID_FLAGS_IO_SUB_TYPE_SHIFT;
|
|
|
|
/* If FW supports PD sequence number */
|
|
if (instance->use_seqnum_jbod_fp &&
|
|
instance->pd_list[pd_index].driveType == TYPE_DISK) {
|
|
/* TgtId must be incremented by 255 as jbod seq number is index
|
|
* below raid map
|
|
*/
|
|
/* More than 256 PD/JBOD support for Ventura */
|
|
if (instance->support_morethan256jbod)
|
|
pRAID_Context->virtual_disk_tgt_id =
|
|
pd_sync->seq[pd_index].pd_target_id;
|
|
else
|
|
pRAID_Context->virtual_disk_tgt_id =
|
|
cpu_to_le16(device_id + (MAX_PHYSICAL_DEVICES - 1));
|
|
pRAID_Context->config_seq_num = pd_sync->seq[pd_index].seqNum;
|
|
io_request->DevHandle = pd_sync->seq[pd_index].devHandle;
|
|
if (instance->adapter_type == VENTURA_SERIES) {
|
|
io_request->RaidContext.raid_context_g35.routing_flags |=
|
|
(1 << MR_RAID_CTX_ROUTINGFLAGS_SQN_SHIFT);
|
|
io_request->RaidContext.raid_context_g35.nseg_type |=
|
|
(1 << RAID_CONTEXT_NSEG_SHIFT);
|
|
io_request->RaidContext.raid_context_g35.nseg_type |=
|
|
(MPI2_TYPE_CUDA << RAID_CONTEXT_TYPE_SHIFT);
|
|
} else {
|
|
pRAID_Context->type = MPI2_TYPE_CUDA;
|
|
pRAID_Context->nseg = 0x1;
|
|
pRAID_Context->reg_lock_flags |=
|
|
(MR_RL_FLAGS_SEQ_NUM_ENABLE|MR_RL_FLAGS_GRANT_DESTINATION_CUDA);
|
|
}
|
|
} else if (fusion->fast_path_io) {
|
|
pRAID_Context->virtual_disk_tgt_id = cpu_to_le16(device_id);
|
|
pRAID_Context->config_seq_num = 0;
|
|
local_map_ptr = fusion->ld_drv_map[(instance->map_id & 1)];
|
|
io_request->DevHandle =
|
|
local_map_ptr->raidMap.devHndlInfo[device_id].curDevHdl;
|
|
} else {
|
|
/* Want to send all IO via FW path */
|
|
pRAID_Context->virtual_disk_tgt_id = cpu_to_le16(device_id);
|
|
pRAID_Context->config_seq_num = 0;
|
|
io_request->DevHandle = cpu_to_le16(0xFFFF);
|
|
}
|
|
|
|
cmd->request_desc->SCSIIO.DevHandle = io_request->DevHandle;
|
|
|
|
cmd->request_desc->SCSIIO.MSIxIndex =
|
|
instance->reply_map[raw_smp_processor_id()];
|
|
|
|
if (!fp_possible) {
|
|
/* system pd firmware path */
|
|
io_request->Function = MEGASAS_MPI2_FUNCTION_LD_IO_REQUEST;
|
|
cmd->request_desc->SCSIIO.RequestFlags =
|
|
(MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO <<
|
|
MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
|
|
pRAID_Context->timeout_value = cpu_to_le16(os_timeout_value);
|
|
pRAID_Context->virtual_disk_tgt_id = cpu_to_le16(device_id);
|
|
} else {
|
|
if (os_timeout_value)
|
|
os_timeout_value++;
|
|
|
|
/* system pd Fast Path */
|
|
io_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
|
|
timeout_limit = (scmd->device->type == TYPE_DISK) ?
|
|
255 : 0xFFFF;
|
|
pRAID_Context->timeout_value =
|
|
cpu_to_le16((os_timeout_value > timeout_limit) ?
|
|
timeout_limit : os_timeout_value);
|
|
if (instance->adapter_type >= INVADER_SERIES)
|
|
io_request->IoFlags |=
|
|
cpu_to_le16(MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH);
|
|
|
|
cmd->request_desc->SCSIIO.RequestFlags =
|
|
(MPI2_REQ_DESCRIPT_FLAGS_FP_IO <<
|
|
MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* megasas_build_io_fusion - Prepares IOs to devices
|
|
* @instance: Adapter soft state
|
|
* @scp: SCSI command
|
|
* @cmd: Command to be prepared
|
|
*
|
|
* Invokes helper functions to prepare request frames
|
|
* and sets flags appropriate for IO/Non-IO cmd
|
|
*/
|
|
int
|
|
megasas_build_io_fusion(struct megasas_instance *instance,
|
|
struct scsi_cmnd *scp,
|
|
struct megasas_cmd_fusion *cmd)
|
|
{
|
|
int sge_count;
|
|
u8 cmd_type;
|
|
struct MPI2_RAID_SCSI_IO_REQUEST *io_request = cmd->io_request;
|
|
struct MR_PRIV_DEVICE *mr_device_priv_data;
|
|
mr_device_priv_data = scp->device->hostdata;
|
|
|
|
/* Zero out some fields so they don't get reused */
|
|
memset(io_request->LUN, 0x0, 8);
|
|
io_request->CDB.EEDP32.PrimaryReferenceTag = 0;
|
|
io_request->CDB.EEDP32.PrimaryApplicationTagMask = 0;
|
|
io_request->EEDPFlags = 0;
|
|
io_request->Control = 0;
|
|
io_request->EEDPBlockSize = 0;
|
|
io_request->ChainOffset = 0;
|
|
io_request->RaidContext.raid_context.raid_flags = 0;
|
|
io_request->RaidContext.raid_context.type = 0;
|
|
io_request->RaidContext.raid_context.nseg = 0;
|
|
|
|
memcpy(io_request->CDB.CDB32, scp->cmnd, scp->cmd_len);
|
|
/*
|
|
* Just the CDB length,rest of the Flags are zero
|
|
* This will be modified for FP in build_ldio_fusion
|
|
*/
|
|
io_request->IoFlags = cpu_to_le16(scp->cmd_len);
|
|
|
|
switch (cmd_type = megasas_cmd_type(scp)) {
|
|
case READ_WRITE_LDIO:
|
|
megasas_build_ldio_fusion(instance, scp, cmd);
|
|
break;
|
|
case NON_READ_WRITE_LDIO:
|
|
megasas_build_ld_nonrw_fusion(instance, scp, cmd);
|
|
break;
|
|
case READ_WRITE_SYSPDIO:
|
|
megasas_build_syspd_fusion(instance, scp, cmd, true);
|
|
break;
|
|
case NON_READ_WRITE_SYSPDIO:
|
|
if (instance->secure_jbod_support ||
|
|
mr_device_priv_data->is_tm_capable)
|
|
megasas_build_syspd_fusion(instance, scp, cmd, false);
|
|
else
|
|
megasas_build_syspd_fusion(instance, scp, cmd, true);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* Construct SGL
|
|
*/
|
|
|
|
sge_count = megasas_make_sgl(instance, scp, cmd);
|
|
|
|
if (sge_count > instance->max_num_sge || (sge_count < 0)) {
|
|
dev_err(&instance->pdev->dev,
|
|
"%s %d sge_count (%d) is out of range. Range is: 0-%d\n",
|
|
__func__, __LINE__, sge_count, instance->max_num_sge);
|
|
return 1;
|
|
}
|
|
|
|
if (instance->adapter_type == VENTURA_SERIES) {
|
|
set_num_sge(&io_request->RaidContext.raid_context_g35, sge_count);
|
|
cpu_to_le16s(&io_request->RaidContext.raid_context_g35.routing_flags);
|
|
cpu_to_le16s(&io_request->RaidContext.raid_context_g35.nseg_type);
|
|
} else {
|
|
/* numSGE store lower 8 bit of sge_count.
|
|
* numSGEExt store higher 8 bit of sge_count
|
|
*/
|
|
io_request->RaidContext.raid_context.num_sge = sge_count;
|
|
io_request->RaidContext.raid_context.num_sge_ext =
|
|
(u8)(sge_count >> 8);
|
|
}
|
|
|
|
io_request->SGLFlags = cpu_to_le16(MPI2_SGE_FLAGS_64_BIT_ADDRESSING);
|
|
|
|
if (scp->sc_data_direction == PCI_DMA_TODEVICE)
|
|
io_request->Control |= cpu_to_le32(MPI2_SCSIIO_CONTROL_WRITE);
|
|
else if (scp->sc_data_direction == PCI_DMA_FROMDEVICE)
|
|
io_request->Control |= cpu_to_le32(MPI2_SCSIIO_CONTROL_READ);
|
|
|
|
io_request->SGLOffset0 =
|
|
offsetof(struct MPI2_RAID_SCSI_IO_REQUEST, SGL) / 4;
|
|
|
|
io_request->SenseBufferLowAddress =
|
|
cpu_to_le32(lower_32_bits(cmd->sense_phys_addr));
|
|
io_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE;
|
|
|
|
cmd->scmd = scp;
|
|
scp->SCp.ptr = (char *)cmd;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static union MEGASAS_REQUEST_DESCRIPTOR_UNION *
|
|
megasas_get_request_descriptor(struct megasas_instance *instance, u16 index)
|
|
{
|
|
u8 *p;
|
|
struct fusion_context *fusion;
|
|
|
|
fusion = instance->ctrl_context;
|
|
p = fusion->req_frames_desc +
|
|
sizeof(union MEGASAS_REQUEST_DESCRIPTOR_UNION) * index;
|
|
|
|
return (union MEGASAS_REQUEST_DESCRIPTOR_UNION *)p;
|
|
}
|
|
|
|
|
|
/* megasas_prepate_secondRaid1_IO
|
|
* It prepares the raid 1 second IO
|
|
*/
|
|
void megasas_prepare_secondRaid1_IO(struct megasas_instance *instance,
|
|
struct megasas_cmd_fusion *cmd,
|
|
struct megasas_cmd_fusion *r1_cmd)
|
|
{
|
|
union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc, *req_desc2 = NULL;
|
|
struct fusion_context *fusion;
|
|
fusion = instance->ctrl_context;
|
|
req_desc = cmd->request_desc;
|
|
/* copy the io request frame as well as 8 SGEs data for r1 command*/
|
|
memcpy(r1_cmd->io_request, cmd->io_request,
|
|
(sizeof(struct MPI2_RAID_SCSI_IO_REQUEST)));
|
|
memcpy(&r1_cmd->io_request->SGL, &cmd->io_request->SGL,
|
|
(fusion->max_sge_in_main_msg * sizeof(union MPI2_SGE_IO_UNION)));
|
|
/*sense buffer is different for r1 command*/
|
|
r1_cmd->io_request->SenseBufferLowAddress =
|
|
cpu_to_le32(lower_32_bits(r1_cmd->sense_phys_addr));
|
|
r1_cmd->scmd = cmd->scmd;
|
|
req_desc2 = megasas_get_request_descriptor(instance,
|
|
(r1_cmd->index - 1));
|
|
req_desc2->Words = 0;
|
|
r1_cmd->request_desc = req_desc2;
|
|
req_desc2->SCSIIO.SMID = cpu_to_le16(r1_cmd->index);
|
|
req_desc2->SCSIIO.RequestFlags = req_desc->SCSIIO.RequestFlags;
|
|
r1_cmd->request_desc->SCSIIO.DevHandle = cmd->r1_alt_dev_handle;
|
|
r1_cmd->io_request->DevHandle = cmd->r1_alt_dev_handle;
|
|
r1_cmd->r1_alt_dev_handle = cmd->io_request->DevHandle;
|
|
cmd->io_request->RaidContext.raid_context_g35.smid.peer_smid =
|
|
cpu_to_le16(r1_cmd->index);
|
|
r1_cmd->io_request->RaidContext.raid_context_g35.smid.peer_smid =
|
|
cpu_to_le16(cmd->index);
|
|
/*MSIxIndex of both commands request descriptors should be same*/
|
|
r1_cmd->request_desc->SCSIIO.MSIxIndex =
|
|
cmd->request_desc->SCSIIO.MSIxIndex;
|
|
/*span arm is different for r1 cmd*/
|
|
r1_cmd->io_request->RaidContext.raid_context_g35.span_arm =
|
|
cmd->io_request->RaidContext.raid_context_g35.span_arm + 1;
|
|
}
|
|
|
|
/**
|
|
* megasas_build_and_issue_cmd_fusion -Main routine for building and
|
|
* issuing non IOCTL cmd
|
|
* @instance: Adapter soft state
|
|
* @scmd: pointer to scsi cmd from OS
|
|
*/
|
|
static u32
|
|
megasas_build_and_issue_cmd_fusion(struct megasas_instance *instance,
|
|
struct scsi_cmnd *scmd)
|
|
{
|
|
struct megasas_cmd_fusion *cmd, *r1_cmd = NULL;
|
|
union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc;
|
|
u32 index;
|
|
struct fusion_context *fusion;
|
|
|
|
fusion = instance->ctrl_context;
|
|
|
|
if ((megasas_cmd_type(scmd) == READ_WRITE_LDIO) &&
|
|
instance->ldio_threshold &&
|
|
(atomic_inc_return(&instance->ldio_outstanding) >
|
|
instance->ldio_threshold)) {
|
|
atomic_dec(&instance->ldio_outstanding);
|
|
return SCSI_MLQUEUE_DEVICE_BUSY;
|
|
}
|
|
|
|
if (atomic_inc_return(&instance->fw_outstanding) >
|
|
instance->host->can_queue) {
|
|
atomic_dec(&instance->fw_outstanding);
|
|
return SCSI_MLQUEUE_HOST_BUSY;
|
|
}
|
|
|
|
cmd = megasas_get_cmd_fusion(instance, scmd->request->tag);
|
|
|
|
if (!cmd) {
|
|
atomic_dec(&instance->fw_outstanding);
|
|
return SCSI_MLQUEUE_HOST_BUSY;
|
|
}
|
|
|
|
index = cmd->index;
|
|
|
|
req_desc = megasas_get_request_descriptor(instance, index-1);
|
|
|
|
req_desc->Words = 0;
|
|
cmd->request_desc = req_desc;
|
|
|
|
if (megasas_build_io_fusion(instance, scmd, cmd)) {
|
|
megasas_return_cmd_fusion(instance, cmd);
|
|
dev_err(&instance->pdev->dev, "Error building command\n");
|
|
cmd->request_desc = NULL;
|
|
atomic_dec(&instance->fw_outstanding);
|
|
return SCSI_MLQUEUE_HOST_BUSY;
|
|
}
|
|
|
|
req_desc = cmd->request_desc;
|
|
req_desc->SCSIIO.SMID = cpu_to_le16(index);
|
|
|
|
if (cmd->io_request->ChainOffset != 0 &&
|
|
cmd->io_request->ChainOffset != 0xF)
|
|
dev_err(&instance->pdev->dev, "The chain offset value is not "
|
|
"correct : %x\n", cmd->io_request->ChainOffset);
|
|
/*
|
|
* if it is raid 1/10 fp write capable.
|
|
* try to get second command from pool and construct it.
|
|
* From FW, it has confirmed that lba values of two PDs
|
|
* corresponds to single R1/10 LD are always same
|
|
*
|
|
*/
|
|
/* driver side count always should be less than max_fw_cmds
|
|
* to get new command
|
|
*/
|
|
if (cmd->r1_alt_dev_handle != MR_DEVHANDLE_INVALID) {
|
|
r1_cmd = megasas_get_cmd_fusion(instance,
|
|
(scmd->request->tag + instance->max_fw_cmds));
|
|
megasas_prepare_secondRaid1_IO(instance, cmd, r1_cmd);
|
|
}
|
|
|
|
|
|
/*
|
|
* Issue the command to the FW
|
|
*/
|
|
|
|
megasas_fire_cmd_fusion(instance, req_desc);
|
|
|
|
if (r1_cmd)
|
|
megasas_fire_cmd_fusion(instance, r1_cmd->request_desc);
|
|
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* megasas_complete_r1_command -
|
|
* completes R1 FP write commands which has valid peer smid
|
|
* @instance: Adapter soft state
|
|
* @cmd_fusion: MPT command frame
|
|
*
|
|
*/
|
|
static inline void
|
|
megasas_complete_r1_command(struct megasas_instance *instance,
|
|
struct megasas_cmd_fusion *cmd)
|
|
{
|
|
u8 *sense, status, ex_status;
|
|
u32 data_length;
|
|
u16 peer_smid;
|
|
struct fusion_context *fusion;
|
|
struct megasas_cmd_fusion *r1_cmd = NULL;
|
|
struct scsi_cmnd *scmd_local = NULL;
|
|
struct RAID_CONTEXT_G35 *rctx_g35;
|
|
|
|
rctx_g35 = &cmd->io_request->RaidContext.raid_context_g35;
|
|
fusion = instance->ctrl_context;
|
|
peer_smid = le16_to_cpu(rctx_g35->smid.peer_smid);
|
|
|
|
r1_cmd = fusion->cmd_list[peer_smid - 1];
|
|
scmd_local = cmd->scmd;
|
|
status = rctx_g35->status;
|
|
ex_status = rctx_g35->ex_status;
|
|
data_length = cmd->io_request->DataLength;
|
|
sense = cmd->sense;
|
|
|
|
cmd->cmd_completed = true;
|
|
|
|
/* Check if peer command is completed or not*/
|
|
if (r1_cmd->cmd_completed) {
|
|
rctx_g35 = &r1_cmd->io_request->RaidContext.raid_context_g35;
|
|
if (rctx_g35->status != MFI_STAT_OK) {
|
|
status = rctx_g35->status;
|
|
ex_status = rctx_g35->ex_status;
|
|
data_length = r1_cmd->io_request->DataLength;
|
|
sense = r1_cmd->sense;
|
|
}
|
|
|
|
megasas_return_cmd_fusion(instance, r1_cmd);
|
|
map_cmd_status(fusion, scmd_local, status, ex_status,
|
|
le32_to_cpu(data_length), sense);
|
|
if (instance->ldio_threshold &&
|
|
megasas_cmd_type(scmd_local) == READ_WRITE_LDIO)
|
|
atomic_dec(&instance->ldio_outstanding);
|
|
scmd_local->SCp.ptr = NULL;
|
|
megasas_return_cmd_fusion(instance, cmd);
|
|
scsi_dma_unmap(scmd_local);
|
|
scmd_local->scsi_done(scmd_local);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* complete_cmd_fusion - Completes command
|
|
* @instance: Adapter soft state
|
|
* Completes all commands that is in reply descriptor queue
|
|
*/
|
|
int
|
|
complete_cmd_fusion(struct megasas_instance *instance, u32 MSIxIndex)
|
|
{
|
|
union MPI2_REPLY_DESCRIPTORS_UNION *desc;
|
|
struct MPI2_SCSI_IO_SUCCESS_REPLY_DESCRIPTOR *reply_desc;
|
|
struct MPI2_RAID_SCSI_IO_REQUEST *scsi_io_req;
|
|
struct fusion_context *fusion;
|
|
struct megasas_cmd *cmd_mfi;
|
|
struct megasas_cmd_fusion *cmd_fusion;
|
|
u16 smid, num_completed;
|
|
u8 reply_descript_type, *sense, status, extStatus;
|
|
u32 device_id, data_length;
|
|
union desc_value d_val;
|
|
struct LD_LOAD_BALANCE_INFO *lbinfo;
|
|
int threshold_reply_count = 0;
|
|
struct scsi_cmnd *scmd_local = NULL;
|
|
struct MR_TASK_MANAGE_REQUEST *mr_tm_req;
|
|
struct MPI2_SCSI_TASK_MANAGE_REQUEST *mpi_tm_req;
|
|
|
|
fusion = instance->ctrl_context;
|
|
|
|
if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR)
|
|
return IRQ_HANDLED;
|
|
|
|
desc = fusion->reply_frames_desc[MSIxIndex] +
|
|
fusion->last_reply_idx[MSIxIndex];
|
|
|
|
reply_desc = (struct MPI2_SCSI_IO_SUCCESS_REPLY_DESCRIPTOR *)desc;
|
|
|
|
d_val.word = desc->Words;
|
|
|
|
reply_descript_type = reply_desc->ReplyFlags &
|
|
MPI2_RPY_DESCRIPT_FLAGS_TYPE_MASK;
|
|
|
|
if (reply_descript_type == MPI2_RPY_DESCRIPT_FLAGS_UNUSED)
|
|
return IRQ_NONE;
|
|
|
|
num_completed = 0;
|
|
|
|
while (d_val.u.low != cpu_to_le32(UINT_MAX) &&
|
|
d_val.u.high != cpu_to_le32(UINT_MAX)) {
|
|
|
|
smid = le16_to_cpu(reply_desc->SMID);
|
|
cmd_fusion = fusion->cmd_list[smid - 1];
|
|
scsi_io_req = (struct MPI2_RAID_SCSI_IO_REQUEST *)
|
|
cmd_fusion->io_request;
|
|
|
|
scmd_local = cmd_fusion->scmd;
|
|
status = scsi_io_req->RaidContext.raid_context.status;
|
|
extStatus = scsi_io_req->RaidContext.raid_context.ex_status;
|
|
sense = cmd_fusion->sense;
|
|
data_length = scsi_io_req->DataLength;
|
|
|
|
switch (scsi_io_req->Function) {
|
|
case MPI2_FUNCTION_SCSI_TASK_MGMT:
|
|
mr_tm_req = (struct MR_TASK_MANAGE_REQUEST *)
|
|
cmd_fusion->io_request;
|
|
mpi_tm_req = (struct MPI2_SCSI_TASK_MANAGE_REQUEST *)
|
|
&mr_tm_req->TmRequest;
|
|
dev_dbg(&instance->pdev->dev, "TM completion:"
|
|
"type: 0x%x TaskMID: 0x%x\n",
|
|
mpi_tm_req->TaskType, mpi_tm_req->TaskMID);
|
|
complete(&cmd_fusion->done);
|
|
break;
|
|
case MPI2_FUNCTION_SCSI_IO_REQUEST: /*Fast Path IO.*/
|
|
/* Update load balancing info */
|
|
if (fusion->load_balance_info &&
|
|
(cmd_fusion->scmd->SCp.Status &
|
|
MEGASAS_LOAD_BALANCE_FLAG)) {
|
|
device_id = MEGASAS_DEV_INDEX(scmd_local);
|
|
lbinfo = &fusion->load_balance_info[device_id];
|
|
atomic_dec(&lbinfo->scsi_pending_cmds[cmd_fusion->pd_r1_lb]);
|
|
cmd_fusion->scmd->SCp.Status &= ~MEGASAS_LOAD_BALANCE_FLAG;
|
|
}
|
|
//Fall thru and complete IO
|
|
case MEGASAS_MPI2_FUNCTION_LD_IO_REQUEST: /* LD-IO Path */
|
|
atomic_dec(&instance->fw_outstanding);
|
|
if (cmd_fusion->r1_alt_dev_handle == MR_DEVHANDLE_INVALID) {
|
|
map_cmd_status(fusion, scmd_local, status,
|
|
extStatus, le32_to_cpu(data_length),
|
|
sense);
|
|
if (instance->ldio_threshold &&
|
|
(megasas_cmd_type(scmd_local) == READ_WRITE_LDIO))
|
|
atomic_dec(&instance->ldio_outstanding);
|
|
scmd_local->SCp.ptr = NULL;
|
|
megasas_return_cmd_fusion(instance, cmd_fusion);
|
|
scsi_dma_unmap(scmd_local);
|
|
scmd_local->scsi_done(scmd_local);
|
|
} else /* Optimal VD - R1 FP command completion. */
|
|
megasas_complete_r1_command(instance, cmd_fusion);
|
|
break;
|
|
case MEGASAS_MPI2_FUNCTION_PASSTHRU_IO_REQUEST: /*MFI command */
|
|
cmd_mfi = instance->cmd_list[cmd_fusion->sync_cmd_idx];
|
|
/* Poll mode. Dummy free.
|
|
* In case of Interrupt mode, caller has reverse check.
|
|
*/
|
|
if (cmd_mfi->flags & DRV_DCMD_POLLED_MODE) {
|
|
cmd_mfi->flags &= ~DRV_DCMD_POLLED_MODE;
|
|
megasas_return_cmd(instance, cmd_mfi);
|
|
} else
|
|
megasas_complete_cmd(instance, cmd_mfi, DID_OK);
|
|
break;
|
|
}
|
|
|
|
fusion->last_reply_idx[MSIxIndex]++;
|
|
if (fusion->last_reply_idx[MSIxIndex] >=
|
|
fusion->reply_q_depth)
|
|
fusion->last_reply_idx[MSIxIndex] = 0;
|
|
|
|
desc->Words = cpu_to_le64(ULLONG_MAX);
|
|
num_completed++;
|
|
threshold_reply_count++;
|
|
|
|
/* Get the next reply descriptor */
|
|
if (!fusion->last_reply_idx[MSIxIndex])
|
|
desc = fusion->reply_frames_desc[MSIxIndex];
|
|
else
|
|
desc++;
|
|
|
|
reply_desc =
|
|
(struct MPI2_SCSI_IO_SUCCESS_REPLY_DESCRIPTOR *)desc;
|
|
|
|
d_val.word = desc->Words;
|
|
|
|
reply_descript_type = reply_desc->ReplyFlags &
|
|
MPI2_RPY_DESCRIPT_FLAGS_TYPE_MASK;
|
|
|
|
if (reply_descript_type == MPI2_RPY_DESCRIPT_FLAGS_UNUSED)
|
|
break;
|
|
/*
|
|
* Write to reply post host index register after completing threshold
|
|
* number of reply counts and still there are more replies in reply queue
|
|
* pending to be completed
|
|
*/
|
|
if (threshold_reply_count >= THRESHOLD_REPLY_COUNT) {
|
|
if (instance->msix_combined)
|
|
writel(((MSIxIndex & 0x7) << 24) |
|
|
fusion->last_reply_idx[MSIxIndex],
|
|
instance->reply_post_host_index_addr[MSIxIndex/8]);
|
|
else
|
|
writel((MSIxIndex << 24) |
|
|
fusion->last_reply_idx[MSIxIndex],
|
|
instance->reply_post_host_index_addr[0]);
|
|
threshold_reply_count = 0;
|
|
}
|
|
}
|
|
|
|
if (!num_completed)
|
|
return IRQ_NONE;
|
|
|
|
wmb();
|
|
if (instance->msix_combined)
|
|
writel(((MSIxIndex & 0x7) << 24) |
|
|
fusion->last_reply_idx[MSIxIndex],
|
|
instance->reply_post_host_index_addr[MSIxIndex/8]);
|
|
else
|
|
writel((MSIxIndex << 24) |
|
|
fusion->last_reply_idx[MSIxIndex],
|
|
instance->reply_post_host_index_addr[0]);
|
|
megasas_check_and_restore_queue_depth(instance);
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
/**
|
|
* megasas_sync_irqs - Synchronizes all IRQs owned by adapter
|
|
* @instance: Adapter soft state
|
|
*/
|
|
void megasas_sync_irqs(unsigned long instance_addr)
|
|
{
|
|
u32 count, i;
|
|
struct megasas_instance *instance =
|
|
(struct megasas_instance *)instance_addr;
|
|
|
|
count = instance->msix_vectors > 0 ? instance->msix_vectors : 1;
|
|
|
|
for (i = 0; i < count; i++)
|
|
synchronize_irq(pci_irq_vector(instance->pdev, i));
|
|
}
|
|
|
|
/**
|
|
* megasas_complete_cmd_dpc_fusion - Completes command
|
|
* @instance: Adapter soft state
|
|
*
|
|
* Tasklet to complete cmds
|
|
*/
|
|
void
|
|
megasas_complete_cmd_dpc_fusion(unsigned long instance_addr)
|
|
{
|
|
struct megasas_instance *instance =
|
|
(struct megasas_instance *)instance_addr;
|
|
unsigned long flags;
|
|
u32 count, MSIxIndex;
|
|
|
|
count = instance->msix_vectors > 0 ? instance->msix_vectors : 1;
|
|
|
|
/* If we have already declared adapter dead, donot complete cmds */
|
|
spin_lock_irqsave(&instance->hba_lock, flags);
|
|
if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
|
|
spin_unlock_irqrestore(&instance->hba_lock, flags);
|
|
return;
|
|
}
|
|
spin_unlock_irqrestore(&instance->hba_lock, flags);
|
|
|
|
for (MSIxIndex = 0 ; MSIxIndex < count; MSIxIndex++)
|
|
complete_cmd_fusion(instance, MSIxIndex);
|
|
}
|
|
|
|
/**
|
|
* megasas_isr_fusion - isr entry point
|
|
*/
|
|
irqreturn_t megasas_isr_fusion(int irq, void *devp)
|
|
{
|
|
struct megasas_irq_context *irq_context = devp;
|
|
struct megasas_instance *instance = irq_context->instance;
|
|
u32 mfiStatus, fw_state, dma_state;
|
|
|
|
if (instance->mask_interrupts)
|
|
return IRQ_NONE;
|
|
|
|
if (!instance->msix_vectors) {
|
|
mfiStatus = instance->instancet->clear_intr(instance->reg_set);
|
|
if (!mfiStatus)
|
|
return IRQ_NONE;
|
|
}
|
|
|
|
/* If we are resetting, bail */
|
|
if (test_bit(MEGASAS_FUSION_IN_RESET, &instance->reset_flags)) {
|
|
instance->instancet->clear_intr(instance->reg_set);
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
if (!complete_cmd_fusion(instance, irq_context->MSIxIndex)) {
|
|
instance->instancet->clear_intr(instance->reg_set);
|
|
/* If we didn't complete any commands, check for FW fault */
|
|
fw_state = instance->instancet->read_fw_status_reg(
|
|
instance->reg_set) & MFI_STATE_MASK;
|
|
dma_state = instance->instancet->read_fw_status_reg
|
|
(instance->reg_set) & MFI_STATE_DMADONE;
|
|
if (instance->crash_dump_drv_support &&
|
|
instance->crash_dump_app_support) {
|
|
/* Start collecting crash, if DMA bit is done */
|
|
if ((fw_state == MFI_STATE_FAULT) && dma_state)
|
|
schedule_work(&instance->crash_init);
|
|
else if (fw_state == MFI_STATE_FAULT) {
|
|
if (instance->unload == 0)
|
|
schedule_work(&instance->work_init);
|
|
}
|
|
} else if (fw_state == MFI_STATE_FAULT) {
|
|
dev_warn(&instance->pdev->dev, "Iop2SysDoorbellInt"
|
|
"for scsi%d\n", instance->host->host_no);
|
|
if (instance->unload == 0)
|
|
schedule_work(&instance->work_init);
|
|
}
|
|
}
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
/**
|
|
* build_mpt_mfi_pass_thru - builds a cmd fo MFI Pass thru
|
|
* @instance: Adapter soft state
|
|
* mfi_cmd: megasas_cmd pointer
|
|
*
|
|
*/
|
|
void
|
|
build_mpt_mfi_pass_thru(struct megasas_instance *instance,
|
|
struct megasas_cmd *mfi_cmd)
|
|
{
|
|
struct MPI25_IEEE_SGE_CHAIN64 *mpi25_ieee_chain;
|
|
struct MPI2_RAID_SCSI_IO_REQUEST *io_req;
|
|
struct megasas_cmd_fusion *cmd;
|
|
struct fusion_context *fusion;
|
|
struct megasas_header *frame_hdr = &mfi_cmd->frame->hdr;
|
|
|
|
fusion = instance->ctrl_context;
|
|
|
|
cmd = megasas_get_cmd_fusion(instance,
|
|
instance->max_scsi_cmds + mfi_cmd->index);
|
|
|
|
/* Save the smid. To be used for returning the cmd */
|
|
mfi_cmd->context.smid = cmd->index;
|
|
|
|
/*
|
|
* For cmds where the flag is set, store the flag and check
|
|
* on completion. For cmds with this flag, don't call
|
|
* megasas_complete_cmd
|
|
*/
|
|
|
|
if (frame_hdr->flags & cpu_to_le16(MFI_FRAME_DONT_POST_IN_REPLY_QUEUE))
|
|
mfi_cmd->flags |= DRV_DCMD_POLLED_MODE;
|
|
|
|
io_req = cmd->io_request;
|
|
|
|
if (instance->adapter_type >= INVADER_SERIES) {
|
|
struct MPI25_IEEE_SGE_CHAIN64 *sgl_ptr_end =
|
|
(struct MPI25_IEEE_SGE_CHAIN64 *)&io_req->SGL;
|
|
sgl_ptr_end += fusion->max_sge_in_main_msg - 1;
|
|
sgl_ptr_end->Flags = 0;
|
|
}
|
|
|
|
mpi25_ieee_chain =
|
|
(struct MPI25_IEEE_SGE_CHAIN64 *)&io_req->SGL.IeeeChain;
|
|
|
|
io_req->Function = MEGASAS_MPI2_FUNCTION_PASSTHRU_IO_REQUEST;
|
|
io_req->SGLOffset0 = offsetof(struct MPI2_RAID_SCSI_IO_REQUEST,
|
|
SGL) / 4;
|
|
io_req->ChainOffset = fusion->chain_offset_mfi_pthru;
|
|
|
|
mpi25_ieee_chain->Address = cpu_to_le64(mfi_cmd->frame_phys_addr);
|
|
|
|
mpi25_ieee_chain->Flags = IEEE_SGE_FLAGS_CHAIN_ELEMENT |
|
|
MPI2_IEEE_SGE_FLAGS_IOCPLBNTA_ADDR;
|
|
|
|
mpi25_ieee_chain->Length = cpu_to_le32(instance->mfi_frame_size);
|
|
}
|
|
|
|
/**
|
|
* build_mpt_cmd - Calls helper function to build a cmd MFI Pass thru cmd
|
|
* @instance: Adapter soft state
|
|
* @cmd: mfi cmd to build
|
|
*
|
|
*/
|
|
union MEGASAS_REQUEST_DESCRIPTOR_UNION *
|
|
build_mpt_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd)
|
|
{
|
|
union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc = NULL;
|
|
u16 index;
|
|
|
|
build_mpt_mfi_pass_thru(instance, cmd);
|
|
index = cmd->context.smid;
|
|
|
|
req_desc = megasas_get_request_descriptor(instance, index - 1);
|
|
|
|
req_desc->Words = 0;
|
|
req_desc->SCSIIO.RequestFlags = (MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO <<
|
|
MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
|
|
|
|
req_desc->SCSIIO.SMID = cpu_to_le16(index);
|
|
|
|
return req_desc;
|
|
}
|
|
|
|
/**
|
|
* megasas_issue_dcmd_fusion - Issues a MFI Pass thru cmd
|
|
* @instance: Adapter soft state
|
|
* @cmd: mfi cmd pointer
|
|
*
|
|
*/
|
|
void
|
|
megasas_issue_dcmd_fusion(struct megasas_instance *instance,
|
|
struct megasas_cmd *cmd)
|
|
{
|
|
union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc;
|
|
|
|
req_desc = build_mpt_cmd(instance, cmd);
|
|
|
|
megasas_fire_cmd_fusion(instance, req_desc);
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* megasas_release_fusion - Reverses the FW initialization
|
|
* @instance: Adapter soft state
|
|
*/
|
|
void
|
|
megasas_release_fusion(struct megasas_instance *instance)
|
|
{
|
|
megasas_free_ioc_init_cmd(instance);
|
|
megasas_free_cmds(instance);
|
|
megasas_free_cmds_fusion(instance);
|
|
|
|
iounmap(instance->reg_set);
|
|
|
|
pci_release_selected_regions(instance->pdev, 1<<instance->bar);
|
|
}
|
|
|
|
/**
|
|
* megasas_read_fw_status_reg_fusion - returns the current FW status value
|
|
* @regs: MFI register set
|
|
*/
|
|
static u32
|
|
megasas_read_fw_status_reg_fusion(struct megasas_register_set __iomem *regs)
|
|
{
|
|
return readl(&(regs)->outbound_scratch_pad);
|
|
}
|
|
|
|
/**
|
|
* megasas_alloc_host_crash_buffer - Host buffers for Crash dump collection from Firmware
|
|
* @instance: Controller's soft instance
|
|
* return: Number of allocated host crash buffers
|
|
*/
|
|
static void
|
|
megasas_alloc_host_crash_buffer(struct megasas_instance *instance)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < MAX_CRASH_DUMP_SIZE; i++) {
|
|
instance->crash_buf[i] = vzalloc(CRASH_DMA_BUF_SIZE);
|
|
if (!instance->crash_buf[i]) {
|
|
dev_info(&instance->pdev->dev, "Firmware crash dump "
|
|
"memory allocation failed at index %d\n", i);
|
|
break;
|
|
}
|
|
}
|
|
instance->drv_buf_alloc = i;
|
|
}
|
|
|
|
/**
|
|
* megasas_free_host_crash_buffer - Host buffers for Crash dump collection from Firmware
|
|
* @instance: Controller's soft instance
|
|
*/
|
|
void
|
|
megasas_free_host_crash_buffer(struct megasas_instance *instance)
|
|
{
|
|
unsigned int i;
|
|
for (i = 0; i < instance->drv_buf_alloc; i++) {
|
|
if (instance->crash_buf[i])
|
|
vfree(instance->crash_buf[i]);
|
|
}
|
|
instance->drv_buf_index = 0;
|
|
instance->drv_buf_alloc = 0;
|
|
instance->fw_crash_state = UNAVAILABLE;
|
|
instance->fw_crash_buffer_size = 0;
|
|
}
|
|
|
|
/**
|
|
* megasas_adp_reset_fusion - For controller reset
|
|
* @regs: MFI register set
|
|
*/
|
|
static int
|
|
megasas_adp_reset_fusion(struct megasas_instance *instance,
|
|
struct megasas_register_set __iomem *regs)
|
|
{
|
|
u32 host_diag, abs_state, retry;
|
|
|
|
/* Now try to reset the chip */
|
|
writel(MPI2_WRSEQ_FLUSH_KEY_VALUE, &instance->reg_set->fusion_seq_offset);
|
|
writel(MPI2_WRSEQ_1ST_KEY_VALUE, &instance->reg_set->fusion_seq_offset);
|
|
writel(MPI2_WRSEQ_2ND_KEY_VALUE, &instance->reg_set->fusion_seq_offset);
|
|
writel(MPI2_WRSEQ_3RD_KEY_VALUE, &instance->reg_set->fusion_seq_offset);
|
|
writel(MPI2_WRSEQ_4TH_KEY_VALUE, &instance->reg_set->fusion_seq_offset);
|
|
writel(MPI2_WRSEQ_5TH_KEY_VALUE, &instance->reg_set->fusion_seq_offset);
|
|
writel(MPI2_WRSEQ_6TH_KEY_VALUE, &instance->reg_set->fusion_seq_offset);
|
|
|
|
/* Check that the diag write enable (DRWE) bit is on */
|
|
host_diag = readl(&instance->reg_set->fusion_host_diag);
|
|
retry = 0;
|
|
while (!(host_diag & HOST_DIAG_WRITE_ENABLE)) {
|
|
msleep(100);
|
|
host_diag = readl(&instance->reg_set->fusion_host_diag);
|
|
if (retry++ == 100) {
|
|
dev_warn(&instance->pdev->dev,
|
|
"Host diag unlock failed from %s %d\n",
|
|
__func__, __LINE__);
|
|
break;
|
|
}
|
|
}
|
|
if (!(host_diag & HOST_DIAG_WRITE_ENABLE))
|
|
return -1;
|
|
|
|
/* Send chip reset command */
|
|
writel(host_diag | HOST_DIAG_RESET_ADAPTER,
|
|
&instance->reg_set->fusion_host_diag);
|
|
msleep(3000);
|
|
|
|
/* Make sure reset adapter bit is cleared */
|
|
host_diag = readl(&instance->reg_set->fusion_host_diag);
|
|
retry = 0;
|
|
while (host_diag & HOST_DIAG_RESET_ADAPTER) {
|
|
msleep(100);
|
|
host_diag = readl(&instance->reg_set->fusion_host_diag);
|
|
if (retry++ == 1000) {
|
|
dev_warn(&instance->pdev->dev,
|
|
"Diag reset adapter never cleared %s %d\n",
|
|
__func__, __LINE__);
|
|
break;
|
|
}
|
|
}
|
|
if (host_diag & HOST_DIAG_RESET_ADAPTER)
|
|
return -1;
|
|
|
|
abs_state = instance->instancet->read_fw_status_reg(instance->reg_set)
|
|
& MFI_STATE_MASK;
|
|
retry = 0;
|
|
|
|
while ((abs_state <= MFI_STATE_FW_INIT) && (retry++ < 1000)) {
|
|
msleep(100);
|
|
abs_state = instance->instancet->
|
|
read_fw_status_reg(instance->reg_set) & MFI_STATE_MASK;
|
|
}
|
|
if (abs_state <= MFI_STATE_FW_INIT) {
|
|
dev_warn(&instance->pdev->dev,
|
|
"fw state < MFI_STATE_FW_INIT, state = 0x%x %s %d\n",
|
|
abs_state, __func__, __LINE__);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* megasas_check_reset_fusion - For controller reset check
|
|
* @regs: MFI register set
|
|
*/
|
|
static int
|
|
megasas_check_reset_fusion(struct megasas_instance *instance,
|
|
struct megasas_register_set __iomem *regs)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/* This function waits for outstanding commands on fusion to complete */
|
|
int megasas_wait_for_outstanding_fusion(struct megasas_instance *instance,
|
|
int reason, int *convert)
|
|
{
|
|
int i, outstanding, retval = 0, hb_seconds_missed = 0;
|
|
u32 fw_state;
|
|
|
|
for (i = 0; i < resetwaittime; i++) {
|
|
/* Check if firmware is in fault state */
|
|
fw_state = instance->instancet->read_fw_status_reg(
|
|
instance->reg_set) & MFI_STATE_MASK;
|
|
if (fw_state == MFI_STATE_FAULT) {
|
|
dev_warn(&instance->pdev->dev, "Found FW in FAULT state,"
|
|
" will reset adapter scsi%d.\n",
|
|
instance->host->host_no);
|
|
megasas_complete_cmd_dpc_fusion((unsigned long)instance);
|
|
if (instance->requestorId && reason) {
|
|
dev_warn(&instance->pdev->dev, "SR-IOV Found FW in FAULT"
|
|
" state while polling during"
|
|
" I/O timeout handling for %d\n",
|
|
instance->host->host_no);
|
|
*convert = 1;
|
|
}
|
|
|
|
retval = 1;
|
|
goto out;
|
|
}
|
|
|
|
if (reason == MFI_IO_TIMEOUT_OCR) {
|
|
dev_info(&instance->pdev->dev,
|
|
"MFI IO is timed out, initiating OCR\n");
|
|
megasas_complete_cmd_dpc_fusion((unsigned long)instance);
|
|
retval = 1;
|
|
goto out;
|
|
}
|
|
|
|
/* If SR-IOV VF mode & heartbeat timeout, don't wait */
|
|
if (instance->requestorId && !reason) {
|
|
retval = 1;
|
|
goto out;
|
|
}
|
|
|
|
/* If SR-IOV VF mode & I/O timeout, check for HB timeout */
|
|
if (instance->requestorId && (reason == SCSIIO_TIMEOUT_OCR)) {
|
|
if (instance->hb_host_mem->HB.fwCounter !=
|
|
instance->hb_host_mem->HB.driverCounter) {
|
|
instance->hb_host_mem->HB.driverCounter =
|
|
instance->hb_host_mem->HB.fwCounter;
|
|
hb_seconds_missed = 0;
|
|
} else {
|
|
hb_seconds_missed++;
|
|
if (hb_seconds_missed ==
|
|
(MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF/HZ)) {
|
|
dev_warn(&instance->pdev->dev, "SR-IOV:"
|
|
" Heartbeat never completed "
|
|
" while polling during I/O "
|
|
" timeout handling for "
|
|
"scsi%d.\n",
|
|
instance->host->host_no);
|
|
*convert = 1;
|
|
retval = 1;
|
|
goto out;
|
|
}
|
|
}
|
|
}
|
|
|
|
megasas_complete_cmd_dpc_fusion((unsigned long)instance);
|
|
outstanding = atomic_read(&instance->fw_outstanding);
|
|
if (!outstanding)
|
|
goto out;
|
|
|
|
if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) {
|
|
dev_notice(&instance->pdev->dev, "[%2d]waiting for %d "
|
|
"commands to complete for scsi%d\n", i,
|
|
outstanding, instance->host->host_no);
|
|
}
|
|
msleep(1000);
|
|
}
|
|
|
|
if (atomic_read(&instance->fw_outstanding)) {
|
|
dev_err(&instance->pdev->dev, "pending commands remain after waiting, "
|
|
"will reset adapter scsi%d.\n",
|
|
instance->host->host_no);
|
|
*convert = 1;
|
|
retval = 1;
|
|
}
|
|
out:
|
|
return retval;
|
|
}
|
|
|
|
void megasas_reset_reply_desc(struct megasas_instance *instance)
|
|
{
|
|
int i, j, count;
|
|
struct fusion_context *fusion;
|
|
union MPI2_REPLY_DESCRIPTORS_UNION *reply_desc;
|
|
|
|
fusion = instance->ctrl_context;
|
|
count = instance->msix_vectors > 0 ? instance->msix_vectors : 1;
|
|
for (i = 0 ; i < count ; i++) {
|
|
fusion->last_reply_idx[i] = 0;
|
|
reply_desc = fusion->reply_frames_desc[i];
|
|
for (j = 0 ; j < fusion->reply_q_depth; j++, reply_desc++)
|
|
reply_desc->Words = cpu_to_le64(ULLONG_MAX);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* megasas_refire_mgmt_cmd : Re-fire management commands
|
|
* @instance: Controller's soft instance
|
|
*/
|
|
void megasas_refire_mgmt_cmd(struct megasas_instance *instance)
|
|
{
|
|
int j;
|
|
struct megasas_cmd_fusion *cmd_fusion;
|
|
struct fusion_context *fusion;
|
|
struct megasas_cmd *cmd_mfi;
|
|
union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc;
|
|
u16 smid;
|
|
bool refire_cmd = 0;
|
|
u8 result;
|
|
u32 opcode = 0;
|
|
|
|
fusion = instance->ctrl_context;
|
|
|
|
/* Re-fire management commands.
|
|
* Do not traverse complet MPT frame pool. Start from max_scsi_cmds.
|
|
*/
|
|
for (j = instance->max_scsi_cmds ; j < instance->max_fw_cmds; j++) {
|
|
cmd_fusion = fusion->cmd_list[j];
|
|
cmd_mfi = instance->cmd_list[cmd_fusion->sync_cmd_idx];
|
|
smid = le16_to_cpu(cmd_mfi->context.smid);
|
|
result = REFIRE_CMD;
|
|
|
|
if (!smid)
|
|
continue;
|
|
|
|
req_desc = megasas_get_request_descriptor(instance, smid - 1);
|
|
|
|
switch (cmd_mfi->frame->hdr.cmd) {
|
|
case MFI_CMD_DCMD:
|
|
opcode = le32_to_cpu(cmd_mfi->frame->dcmd.opcode);
|
|
/* Do not refire shutdown command */
|
|
if (opcode == MR_DCMD_CTRL_SHUTDOWN) {
|
|
cmd_mfi->frame->dcmd.cmd_status = MFI_STAT_OK;
|
|
result = COMPLETE_CMD;
|
|
break;
|
|
}
|
|
|
|
refire_cmd = ((opcode != MR_DCMD_LD_MAP_GET_INFO)) &&
|
|
(opcode != MR_DCMD_SYSTEM_PD_MAP_GET_INFO) &&
|
|
!(cmd_mfi->flags & DRV_DCMD_SKIP_REFIRE);
|
|
|
|
if (!refire_cmd)
|
|
result = RETURN_CMD;
|
|
|
|
break;
|
|
case MFI_CMD_NVME:
|
|
if (!instance->support_nvme_passthru) {
|
|
cmd_mfi->frame->hdr.cmd_status = MFI_STAT_INVALID_CMD;
|
|
result = COMPLETE_CMD;
|
|
}
|
|
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
switch (result) {
|
|
case REFIRE_CMD:
|
|
megasas_fire_cmd_fusion(instance, req_desc);
|
|
break;
|
|
case RETURN_CMD:
|
|
megasas_return_cmd(instance, cmd_mfi);
|
|
break;
|
|
case COMPLETE_CMD:
|
|
megasas_complete_cmd(instance, cmd_mfi, DID_OK);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* megasas_track_scsiio : Track SCSI IOs outstanding to a SCSI device
|
|
* @instance: per adapter struct
|
|
* @channel: the channel assigned by the OS
|
|
* @id: the id assigned by the OS
|
|
*
|
|
* Returns SUCCESS if no IOs pending to SCSI device, else return FAILED
|
|
*/
|
|
|
|
static int megasas_track_scsiio(struct megasas_instance *instance,
|
|
int id, int channel)
|
|
{
|
|
int i, found = 0;
|
|
struct megasas_cmd_fusion *cmd_fusion;
|
|
struct fusion_context *fusion;
|
|
fusion = instance->ctrl_context;
|
|
|
|
for (i = 0 ; i < instance->max_scsi_cmds; i++) {
|
|
cmd_fusion = fusion->cmd_list[i];
|
|
if (cmd_fusion->scmd &&
|
|
(cmd_fusion->scmd->device->id == id &&
|
|
cmd_fusion->scmd->device->channel == channel)) {
|
|
dev_info(&instance->pdev->dev,
|
|
"SCSI commands pending to target"
|
|
"channel %d id %d \tSMID: 0x%x\n",
|
|
channel, id, cmd_fusion->index);
|
|
scsi_print_command(cmd_fusion->scmd);
|
|
found = 1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
return found ? FAILED : SUCCESS;
|
|
}
|
|
|
|
/**
|
|
* megasas_tm_response_code - translation of device response code
|
|
* @ioc: per adapter object
|
|
* @mpi_reply: MPI reply returned by firmware
|
|
*
|
|
* Return nothing.
|
|
*/
|
|
static void
|
|
megasas_tm_response_code(struct megasas_instance *instance,
|
|
struct MPI2_SCSI_TASK_MANAGE_REPLY *mpi_reply)
|
|
{
|
|
char *desc;
|
|
|
|
switch (mpi_reply->ResponseCode) {
|
|
case MPI2_SCSITASKMGMT_RSP_TM_COMPLETE:
|
|
desc = "task management request completed";
|
|
break;
|
|
case MPI2_SCSITASKMGMT_RSP_INVALID_FRAME:
|
|
desc = "invalid frame";
|
|
break;
|
|
case MPI2_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED:
|
|
desc = "task management request not supported";
|
|
break;
|
|
case MPI2_SCSITASKMGMT_RSP_TM_FAILED:
|
|
desc = "task management request failed";
|
|
break;
|
|
case MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED:
|
|
desc = "task management request succeeded";
|
|
break;
|
|
case MPI2_SCSITASKMGMT_RSP_TM_INVALID_LUN:
|
|
desc = "invalid lun";
|
|
break;
|
|
case 0xA:
|
|
desc = "overlapped tag attempted";
|
|
break;
|
|
case MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC:
|
|
desc = "task queued, however not sent to target";
|
|
break;
|
|
default:
|
|
desc = "unknown";
|
|
break;
|
|
}
|
|
dev_dbg(&instance->pdev->dev, "response_code(%01x): %s\n",
|
|
mpi_reply->ResponseCode, desc);
|
|
dev_dbg(&instance->pdev->dev,
|
|
"TerminationCount/DevHandle/Function/TaskType/IOCStat/IOCLoginfo"
|
|
" 0x%x/0x%x/0x%x/0x%x/0x%x/0x%x\n",
|
|
mpi_reply->TerminationCount, mpi_reply->DevHandle,
|
|
mpi_reply->Function, mpi_reply->TaskType,
|
|
mpi_reply->IOCStatus, mpi_reply->IOCLogInfo);
|
|
}
|
|
|
|
/**
|
|
* megasas_issue_tm - main routine for sending tm requests
|
|
* @instance: per adapter struct
|
|
* @device_handle: device handle
|
|
* @channel: the channel assigned by the OS
|
|
* @id: the id assigned by the OS
|
|
* @type: MPI2_SCSITASKMGMT_TASKTYPE__XXX (defined in megaraid_sas_fusion.c)
|
|
* @smid_task: smid assigned to the task
|
|
* @m_type: TM_MUTEX_ON or TM_MUTEX_OFF
|
|
* Context: user
|
|
*
|
|
* MegaRaid use MPT interface for Task Magement request.
|
|
* A generic API for sending task management requests to firmware.
|
|
*
|
|
* Return SUCCESS or FAILED.
|
|
*/
|
|
static int
|
|
megasas_issue_tm(struct megasas_instance *instance, u16 device_handle,
|
|
uint channel, uint id, u16 smid_task, u8 type)
|
|
{
|
|
struct MR_TASK_MANAGE_REQUEST *mr_request;
|
|
struct MPI2_SCSI_TASK_MANAGE_REQUEST *mpi_request;
|
|
unsigned long timeleft;
|
|
struct megasas_cmd_fusion *cmd_fusion;
|
|
struct megasas_cmd *cmd_mfi;
|
|
union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc;
|
|
struct fusion_context *fusion = NULL;
|
|
struct megasas_cmd_fusion *scsi_lookup;
|
|
int rc;
|
|
struct MPI2_SCSI_TASK_MANAGE_REPLY *mpi_reply;
|
|
|
|
fusion = instance->ctrl_context;
|
|
|
|
cmd_mfi = megasas_get_cmd(instance);
|
|
|
|
if (!cmd_mfi) {
|
|
dev_err(&instance->pdev->dev, "Failed from %s %d\n",
|
|
__func__, __LINE__);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
cmd_fusion = megasas_get_cmd_fusion(instance,
|
|
instance->max_scsi_cmds + cmd_mfi->index);
|
|
|
|
/* Save the smid. To be used for returning the cmd */
|
|
cmd_mfi->context.smid = cmd_fusion->index;
|
|
|
|
req_desc = megasas_get_request_descriptor(instance,
|
|
(cmd_fusion->index - 1));
|
|
|
|
cmd_fusion->request_desc = req_desc;
|
|
req_desc->Words = 0;
|
|
|
|
mr_request = (struct MR_TASK_MANAGE_REQUEST *) cmd_fusion->io_request;
|
|
memset(mr_request, 0, sizeof(struct MR_TASK_MANAGE_REQUEST));
|
|
mpi_request = (struct MPI2_SCSI_TASK_MANAGE_REQUEST *) &mr_request->TmRequest;
|
|
mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
|
|
mpi_request->DevHandle = cpu_to_le16(device_handle);
|
|
mpi_request->TaskType = type;
|
|
mpi_request->TaskMID = cpu_to_le16(smid_task);
|
|
mpi_request->LUN[1] = 0;
|
|
|
|
|
|
req_desc = cmd_fusion->request_desc;
|
|
req_desc->HighPriority.SMID = cpu_to_le16(cmd_fusion->index);
|
|
req_desc->HighPriority.RequestFlags =
|
|
(MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY <<
|
|
MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
|
|
req_desc->HighPriority.MSIxIndex = 0;
|
|
req_desc->HighPriority.LMID = 0;
|
|
req_desc->HighPriority.Reserved1 = 0;
|
|
|
|
if (channel < MEGASAS_MAX_PD_CHANNELS)
|
|
mr_request->tmReqFlags.isTMForPD = 1;
|
|
else
|
|
mr_request->tmReqFlags.isTMForLD = 1;
|
|
|
|
init_completion(&cmd_fusion->done);
|
|
megasas_fire_cmd_fusion(instance, req_desc);
|
|
|
|
timeleft = wait_for_completion_timeout(&cmd_fusion->done, 50 * HZ);
|
|
|
|
if (!timeleft) {
|
|
dev_err(&instance->pdev->dev,
|
|
"task mgmt type 0x%x timed out\n", type);
|
|
cmd_mfi->flags |= DRV_DCMD_SKIP_REFIRE;
|
|
mutex_unlock(&instance->reset_mutex);
|
|
rc = megasas_reset_fusion(instance->host, MFI_IO_TIMEOUT_OCR);
|
|
mutex_lock(&instance->reset_mutex);
|
|
return rc;
|
|
}
|
|
|
|
mpi_reply = (struct MPI2_SCSI_TASK_MANAGE_REPLY *) &mr_request->TMReply;
|
|
megasas_tm_response_code(instance, mpi_reply);
|
|
|
|
megasas_return_cmd(instance, cmd_mfi);
|
|
rc = SUCCESS;
|
|
switch (type) {
|
|
case MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK:
|
|
scsi_lookup = fusion->cmd_list[smid_task - 1];
|
|
|
|
if (scsi_lookup->scmd == NULL)
|
|
break;
|
|
else {
|
|
instance->instancet->disable_intr(instance);
|
|
megasas_sync_irqs((unsigned long)instance);
|
|
instance->instancet->enable_intr(instance);
|
|
if (scsi_lookup->scmd == NULL)
|
|
break;
|
|
}
|
|
rc = FAILED;
|
|
break;
|
|
|
|
case MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET:
|
|
if ((channel == 0xFFFFFFFF) && (id == 0xFFFFFFFF))
|
|
break;
|
|
instance->instancet->disable_intr(instance);
|
|
megasas_sync_irqs((unsigned long)instance);
|
|
rc = megasas_track_scsiio(instance, id, channel);
|
|
instance->instancet->enable_intr(instance);
|
|
|
|
break;
|
|
case MPI2_SCSITASKMGMT_TASKTYPE_ABRT_TASK_SET:
|
|
case MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK:
|
|
break;
|
|
default:
|
|
rc = FAILED;
|
|
break;
|
|
}
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
/*
|
|
* megasas_fusion_smid_lookup : Look for fusion command correpspodning to SCSI
|
|
* @instance: per adapter struct
|
|
*
|
|
* Return Non Zero index, if SMID found in outstanding commands
|
|
*/
|
|
static u16 megasas_fusion_smid_lookup(struct scsi_cmnd *scmd)
|
|
{
|
|
int i, ret = 0;
|
|
struct megasas_instance *instance;
|
|
struct megasas_cmd_fusion *cmd_fusion;
|
|
struct fusion_context *fusion;
|
|
|
|
instance = (struct megasas_instance *)scmd->device->host->hostdata;
|
|
|
|
fusion = instance->ctrl_context;
|
|
|
|
for (i = 0; i < instance->max_scsi_cmds; i++) {
|
|
cmd_fusion = fusion->cmd_list[i];
|
|
if (cmd_fusion->scmd && (cmd_fusion->scmd == scmd)) {
|
|
scmd_printk(KERN_NOTICE, scmd, "Abort request is for"
|
|
" SMID: %d\n", cmd_fusion->index);
|
|
ret = cmd_fusion->index;
|
|
break;
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* megasas_get_tm_devhandle - Get devhandle for TM request
|
|
* @sdev- OS provided scsi device
|
|
*
|
|
* Returns- devhandle/targetID of SCSI device
|
|
*/
|
|
static u16 megasas_get_tm_devhandle(struct scsi_device *sdev)
|
|
{
|
|
u16 pd_index = 0;
|
|
u32 device_id;
|
|
struct megasas_instance *instance;
|
|
struct fusion_context *fusion;
|
|
struct MR_PD_CFG_SEQ_NUM_SYNC *pd_sync;
|
|
u16 devhandle = (u16)ULONG_MAX;
|
|
|
|
instance = (struct megasas_instance *)sdev->host->hostdata;
|
|
fusion = instance->ctrl_context;
|
|
|
|
if (!MEGASAS_IS_LOGICAL(sdev)) {
|
|
if (instance->use_seqnum_jbod_fp) {
|
|
pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL)
|
|
+ sdev->id;
|
|
pd_sync = (void *)fusion->pd_seq_sync
|
|
[(instance->pd_seq_map_id - 1) & 1];
|
|
devhandle = pd_sync->seq[pd_index].devHandle;
|
|
} else
|
|
sdev_printk(KERN_ERR, sdev, "Firmware expose tmCapable"
|
|
" without JBOD MAP support from %s %d\n", __func__, __LINE__);
|
|
} else {
|
|
device_id = ((sdev->channel % 2) * MEGASAS_MAX_DEV_PER_CHANNEL)
|
|
+ sdev->id;
|
|
devhandle = device_id;
|
|
}
|
|
|
|
return devhandle;
|
|
}
|
|
|
|
/*
|
|
* megasas_task_abort_fusion : SCSI task abort function for fusion adapters
|
|
* @scmd : pointer to scsi command object
|
|
*
|
|
* Return SUCCESS, if command aborted else FAILED
|
|
*/
|
|
|
|
int megasas_task_abort_fusion(struct scsi_cmnd *scmd)
|
|
{
|
|
struct megasas_instance *instance;
|
|
u16 smid, devhandle;
|
|
struct fusion_context *fusion;
|
|
int ret;
|
|
struct MR_PRIV_DEVICE *mr_device_priv_data;
|
|
mr_device_priv_data = scmd->device->hostdata;
|
|
|
|
|
|
instance = (struct megasas_instance *)scmd->device->host->hostdata;
|
|
fusion = instance->ctrl_context;
|
|
|
|
scmd_printk(KERN_INFO, scmd, "task abort called for scmd(%p)\n", scmd);
|
|
scsi_print_command(scmd);
|
|
|
|
if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) {
|
|
dev_err(&instance->pdev->dev, "Controller is not OPERATIONAL,"
|
|
"SCSI host:%d\n", instance->host->host_no);
|
|
ret = FAILED;
|
|
return ret;
|
|
}
|
|
|
|
if (!mr_device_priv_data) {
|
|
sdev_printk(KERN_INFO, scmd->device, "device been deleted! "
|
|
"scmd(%p)\n", scmd);
|
|
scmd->result = DID_NO_CONNECT << 16;
|
|
ret = SUCCESS;
|
|
goto out;
|
|
}
|
|
|
|
|
|
if (!mr_device_priv_data->is_tm_capable) {
|
|
ret = FAILED;
|
|
goto out;
|
|
}
|
|
|
|
mutex_lock(&instance->reset_mutex);
|
|
|
|
smid = megasas_fusion_smid_lookup(scmd);
|
|
|
|
if (!smid) {
|
|
ret = SUCCESS;
|
|
scmd_printk(KERN_NOTICE, scmd, "Command for which abort is"
|
|
" issued is not found in oustanding commands\n");
|
|
mutex_unlock(&instance->reset_mutex);
|
|
goto out;
|
|
}
|
|
|
|
devhandle = megasas_get_tm_devhandle(scmd->device);
|
|
|
|
if (devhandle == (u16)ULONG_MAX) {
|
|
ret = SUCCESS;
|
|
sdev_printk(KERN_INFO, scmd->device,
|
|
"task abort issued for invalid devhandle\n");
|
|
mutex_unlock(&instance->reset_mutex);
|
|
goto out;
|
|
}
|
|
sdev_printk(KERN_INFO, scmd->device,
|
|
"attempting task abort! scmd(%p) tm_dev_handle 0x%x\n",
|
|
scmd, devhandle);
|
|
|
|
mr_device_priv_data->tm_busy = 1;
|
|
ret = megasas_issue_tm(instance, devhandle,
|
|
scmd->device->channel, scmd->device->id, smid,
|
|
MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK);
|
|
mr_device_priv_data->tm_busy = 0;
|
|
|
|
mutex_unlock(&instance->reset_mutex);
|
|
out:
|
|
sdev_printk(KERN_INFO, scmd->device, "task abort: %s scmd(%p)\n",
|
|
((ret == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* megasas_reset_target_fusion : target reset function for fusion adapters
|
|
* scmd: SCSI command pointer
|
|
*
|
|
* Returns SUCCESS if all commands associated with target aborted else FAILED
|
|
*/
|
|
|
|
int megasas_reset_target_fusion(struct scsi_cmnd *scmd)
|
|
{
|
|
|
|
struct megasas_instance *instance;
|
|
int ret = FAILED;
|
|
u16 devhandle;
|
|
struct fusion_context *fusion;
|
|
struct MR_PRIV_DEVICE *mr_device_priv_data;
|
|
mr_device_priv_data = scmd->device->hostdata;
|
|
|
|
instance = (struct megasas_instance *)scmd->device->host->hostdata;
|
|
fusion = instance->ctrl_context;
|
|
|
|
sdev_printk(KERN_INFO, scmd->device,
|
|
"target reset called for scmd(%p)\n", scmd);
|
|
|
|
if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) {
|
|
dev_err(&instance->pdev->dev, "Controller is not OPERATIONAL,"
|
|
"SCSI host:%d\n", instance->host->host_no);
|
|
ret = FAILED;
|
|
return ret;
|
|
}
|
|
|
|
if (!mr_device_priv_data) {
|
|
sdev_printk(KERN_INFO, scmd->device, "device been deleted! "
|
|
"scmd(%p)\n", scmd);
|
|
scmd->result = DID_NO_CONNECT << 16;
|
|
ret = SUCCESS;
|
|
goto out;
|
|
}
|
|
|
|
|
|
if (!mr_device_priv_data->is_tm_capable) {
|
|
ret = FAILED;
|
|
goto out;
|
|
}
|
|
|
|
mutex_lock(&instance->reset_mutex);
|
|
devhandle = megasas_get_tm_devhandle(scmd->device);
|
|
|
|
if (devhandle == (u16)ULONG_MAX) {
|
|
ret = SUCCESS;
|
|
sdev_printk(KERN_INFO, scmd->device,
|
|
"target reset issued for invalid devhandle\n");
|
|
mutex_unlock(&instance->reset_mutex);
|
|
goto out;
|
|
}
|
|
|
|
sdev_printk(KERN_INFO, scmd->device,
|
|
"attempting target reset! scmd(%p) tm_dev_handle 0x%x\n",
|
|
scmd, devhandle);
|
|
mr_device_priv_data->tm_busy = 1;
|
|
ret = megasas_issue_tm(instance, devhandle,
|
|
scmd->device->channel, scmd->device->id, 0,
|
|
MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET);
|
|
mr_device_priv_data->tm_busy = 0;
|
|
mutex_unlock(&instance->reset_mutex);
|
|
out:
|
|
scmd_printk(KERN_NOTICE, scmd, "megasas: target reset %s!!\n",
|
|
(ret == SUCCESS) ? "SUCCESS" : "FAILED");
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*SRIOV get other instance in cluster if any*/
|
|
struct megasas_instance *megasas_get_peer_instance(struct megasas_instance *instance)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < MAX_MGMT_ADAPTERS; i++) {
|
|
if (megasas_mgmt_info.instance[i] &&
|
|
(megasas_mgmt_info.instance[i] != instance) &&
|
|
megasas_mgmt_info.instance[i]->requestorId &&
|
|
megasas_mgmt_info.instance[i]->peerIsPresent &&
|
|
(memcmp((megasas_mgmt_info.instance[i]->clusterId),
|
|
instance->clusterId, MEGASAS_CLUSTER_ID_SIZE) == 0))
|
|
return megasas_mgmt_info.instance[i];
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
/* Check for a second path that is currently UP */
|
|
int megasas_check_mpio_paths(struct megasas_instance *instance,
|
|
struct scsi_cmnd *scmd)
|
|
{
|
|
struct megasas_instance *peer_instance = NULL;
|
|
int retval = (DID_REQUEUE << 16);
|
|
|
|
if (instance->peerIsPresent) {
|
|
peer_instance = megasas_get_peer_instance(instance);
|
|
if ((peer_instance) &&
|
|
(atomic_read(&peer_instance->adprecovery) ==
|
|
MEGASAS_HBA_OPERATIONAL))
|
|
retval = (DID_NO_CONNECT << 16);
|
|
}
|
|
return retval;
|
|
}
|
|
|
|
/* Core fusion reset function */
|
|
int megasas_reset_fusion(struct Scsi_Host *shost, int reason)
|
|
{
|
|
int retval = SUCCESS, i, j, convert = 0;
|
|
struct megasas_instance *instance;
|
|
struct megasas_cmd_fusion *cmd_fusion, *r1_cmd;
|
|
struct fusion_context *fusion;
|
|
u32 abs_state, status_reg, reset_adapter;
|
|
u32 io_timeout_in_crash_mode = 0;
|
|
struct scsi_cmnd *scmd_local = NULL;
|
|
struct scsi_device *sdev;
|
|
|
|
instance = (struct megasas_instance *)shost->hostdata;
|
|
fusion = instance->ctrl_context;
|
|
|
|
mutex_lock(&instance->reset_mutex);
|
|
|
|
if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
|
|
dev_warn(&instance->pdev->dev, "Hardware critical error, "
|
|
"returning FAILED for scsi%d.\n",
|
|
instance->host->host_no);
|
|
mutex_unlock(&instance->reset_mutex);
|
|
return FAILED;
|
|
}
|
|
status_reg = instance->instancet->read_fw_status_reg(instance->reg_set);
|
|
abs_state = status_reg & MFI_STATE_MASK;
|
|
|
|
/* IO timeout detected, forcibly put FW in FAULT state */
|
|
if (abs_state != MFI_STATE_FAULT && instance->crash_dump_buf &&
|
|
instance->crash_dump_app_support && reason) {
|
|
dev_info(&instance->pdev->dev, "IO/DCMD timeout is detected, "
|
|
"forcibly FAULT Firmware\n");
|
|
atomic_set(&instance->adprecovery, MEGASAS_ADPRESET_SM_INFAULT);
|
|
status_reg = readl(&instance->reg_set->doorbell);
|
|
writel(status_reg | MFI_STATE_FORCE_OCR,
|
|
&instance->reg_set->doorbell);
|
|
readl(&instance->reg_set->doorbell);
|
|
mutex_unlock(&instance->reset_mutex);
|
|
do {
|
|
ssleep(3);
|
|
io_timeout_in_crash_mode++;
|
|
dev_dbg(&instance->pdev->dev, "waiting for [%d] "
|
|
"seconds for crash dump collection and OCR "
|
|
"to be done\n", (io_timeout_in_crash_mode * 3));
|
|
} while ((atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) &&
|
|
(io_timeout_in_crash_mode < 80));
|
|
|
|
if (atomic_read(&instance->adprecovery) == MEGASAS_HBA_OPERATIONAL) {
|
|
dev_info(&instance->pdev->dev, "OCR done for IO "
|
|
"timeout case\n");
|
|
retval = SUCCESS;
|
|
} else {
|
|
dev_info(&instance->pdev->dev, "Controller is not "
|
|
"operational after 240 seconds wait for IO "
|
|
"timeout case in FW crash dump mode\n do "
|
|
"OCR/kill adapter\n");
|
|
retval = megasas_reset_fusion(shost, 0);
|
|
}
|
|
return retval;
|
|
}
|
|
|
|
if (instance->requestorId && !instance->skip_heartbeat_timer_del)
|
|
del_timer_sync(&instance->sriov_heartbeat_timer);
|
|
set_bit(MEGASAS_FUSION_IN_RESET, &instance->reset_flags);
|
|
atomic_set(&instance->adprecovery, MEGASAS_ADPRESET_SM_POLLING);
|
|
instance->instancet->disable_intr(instance);
|
|
megasas_sync_irqs((unsigned long)instance);
|
|
|
|
/* First try waiting for commands to complete */
|
|
if (megasas_wait_for_outstanding_fusion(instance, reason,
|
|
&convert)) {
|
|
atomic_set(&instance->adprecovery, MEGASAS_ADPRESET_SM_INFAULT);
|
|
dev_warn(&instance->pdev->dev, "resetting fusion "
|
|
"adapter scsi%d.\n", instance->host->host_no);
|
|
if (convert)
|
|
reason = 0;
|
|
|
|
if (megasas_dbg_lvl & OCR_LOGS)
|
|
dev_info(&instance->pdev->dev, "\nPending SCSI commands:\n");
|
|
|
|
/* Now return commands back to the OS */
|
|
for (i = 0 ; i < instance->max_scsi_cmds; i++) {
|
|
cmd_fusion = fusion->cmd_list[i];
|
|
/*check for extra commands issued by driver*/
|
|
if (instance->adapter_type == VENTURA_SERIES) {
|
|
r1_cmd = fusion->cmd_list[i + instance->max_fw_cmds];
|
|
megasas_return_cmd_fusion(instance, r1_cmd);
|
|
}
|
|
scmd_local = cmd_fusion->scmd;
|
|
if (cmd_fusion->scmd) {
|
|
if (megasas_dbg_lvl & OCR_LOGS) {
|
|
sdev_printk(KERN_INFO,
|
|
cmd_fusion->scmd->device, "SMID: 0x%x\n",
|
|
cmd_fusion->index);
|
|
scsi_print_command(cmd_fusion->scmd);
|
|
}
|
|
|
|
scmd_local->result =
|
|
megasas_check_mpio_paths(instance,
|
|
scmd_local);
|
|
if (instance->ldio_threshold &&
|
|
megasas_cmd_type(scmd_local) == READ_WRITE_LDIO)
|
|
atomic_dec(&instance->ldio_outstanding);
|
|
megasas_return_cmd_fusion(instance, cmd_fusion);
|
|
scsi_dma_unmap(scmd_local);
|
|
scmd_local->scsi_done(scmd_local);
|
|
}
|
|
}
|
|
|
|
atomic_set(&instance->fw_outstanding, 0);
|
|
|
|
status_reg = instance->instancet->read_fw_status_reg(
|
|
instance->reg_set);
|
|
abs_state = status_reg & MFI_STATE_MASK;
|
|
reset_adapter = status_reg & MFI_RESET_ADAPTER;
|
|
if (instance->disableOnlineCtrlReset ||
|
|
(abs_state == MFI_STATE_FAULT && !reset_adapter)) {
|
|
/* Reset not supported, kill adapter */
|
|
dev_warn(&instance->pdev->dev, "Reset not supported"
|
|
", killing adapter scsi%d.\n",
|
|
instance->host->host_no);
|
|
megaraid_sas_kill_hba(instance);
|
|
instance->skip_heartbeat_timer_del = 1;
|
|
retval = FAILED;
|
|
goto out;
|
|
}
|
|
|
|
/* Let SR-IOV VF & PF sync up if there was a HB failure */
|
|
if (instance->requestorId && !reason) {
|
|
msleep(MEGASAS_OCR_SETTLE_TIME_VF);
|
|
goto transition_to_ready;
|
|
}
|
|
|
|
/* Now try to reset the chip */
|
|
for (i = 0; i < MEGASAS_FUSION_MAX_RESET_TRIES; i++) {
|
|
|
|
if (instance->instancet->adp_reset
|
|
(instance, instance->reg_set))
|
|
continue;
|
|
transition_to_ready:
|
|
/* Wait for FW to become ready */
|
|
if (megasas_transition_to_ready(instance, 1)) {
|
|
dev_warn(&instance->pdev->dev,
|
|
"Failed to transition controller to ready for "
|
|
"scsi%d.\n", instance->host->host_no);
|
|
if (instance->requestorId && !reason)
|
|
goto fail_kill_adapter;
|
|
else
|
|
continue;
|
|
}
|
|
megasas_reset_reply_desc(instance);
|
|
megasas_fusion_update_can_queue(instance, OCR_CONTEXT);
|
|
|
|
if (megasas_ioc_init_fusion(instance)) {
|
|
if (instance->requestorId && !reason)
|
|
goto fail_kill_adapter;
|
|
else
|
|
continue;
|
|
}
|
|
|
|
if (megasas_get_ctrl_info(instance)) {
|
|
dev_info(&instance->pdev->dev,
|
|
"Failed from %s %d\n",
|
|
__func__, __LINE__);
|
|
megaraid_sas_kill_hba(instance);
|
|
retval = FAILED;
|
|
goto out;
|
|
}
|
|
|
|
megasas_refire_mgmt_cmd(instance);
|
|
|
|
/* Reset load balance info */
|
|
if (fusion->load_balance_info)
|
|
memset(fusion->load_balance_info, 0,
|
|
(sizeof(struct LD_LOAD_BALANCE_INFO) *
|
|
MAX_LOGICAL_DRIVES_EXT));
|
|
|
|
if (!megasas_get_map_info(instance))
|
|
megasas_sync_map_info(instance);
|
|
|
|
megasas_setup_jbod_map(instance);
|
|
|
|
shost_for_each_device(sdev, shost)
|
|
megasas_set_dynamic_target_properties(sdev);
|
|
|
|
/* reset stream detection array */
|
|
if (instance->adapter_type == VENTURA_SERIES) {
|
|
for (j = 0; j < MAX_LOGICAL_DRIVES_EXT; ++j) {
|
|
memset(fusion->stream_detect_by_ld[j],
|
|
0, sizeof(struct LD_STREAM_DETECT));
|
|
fusion->stream_detect_by_ld[j]->mru_bit_map
|
|
= MR_STREAM_BITMAP;
|
|
}
|
|
}
|
|
|
|
clear_bit(MEGASAS_FUSION_IN_RESET,
|
|
&instance->reset_flags);
|
|
instance->instancet->enable_intr(instance);
|
|
atomic_set(&instance->adprecovery, MEGASAS_HBA_OPERATIONAL);
|
|
|
|
dev_info(&instance->pdev->dev, "Interrupts are enabled and"
|
|
" controller is OPERATIONAL for scsi:%d\n",
|
|
instance->host->host_no);
|
|
|
|
/* Restart SR-IOV heartbeat */
|
|
if (instance->requestorId) {
|
|
if (!megasas_sriov_start_heartbeat(instance, 0))
|
|
megasas_start_timer(instance);
|
|
else
|
|
instance->skip_heartbeat_timer_del = 1;
|
|
}
|
|
|
|
if (instance->crash_dump_drv_support &&
|
|
instance->crash_dump_app_support)
|
|
megasas_set_crash_dump_params(instance,
|
|
MR_CRASH_BUF_TURN_ON);
|
|
else
|
|
megasas_set_crash_dump_params(instance,
|
|
MR_CRASH_BUF_TURN_OFF);
|
|
|
|
retval = SUCCESS;
|
|
|
|
/* Adapter reset completed successfully */
|
|
dev_warn(&instance->pdev->dev,
|
|
"Reset successful for scsi%d.\n",
|
|
instance->host->host_no);
|
|
|
|
goto out;
|
|
}
|
|
fail_kill_adapter:
|
|
/* Reset failed, kill the adapter */
|
|
dev_warn(&instance->pdev->dev, "Reset failed, killing "
|
|
"adapter scsi%d.\n", instance->host->host_no);
|
|
megaraid_sas_kill_hba(instance);
|
|
instance->skip_heartbeat_timer_del = 1;
|
|
retval = FAILED;
|
|
} else {
|
|
/* For VF: Restart HB timer if we didn't OCR */
|
|
if (instance->requestorId) {
|
|
megasas_start_timer(instance);
|
|
}
|
|
clear_bit(MEGASAS_FUSION_IN_RESET, &instance->reset_flags);
|
|
instance->instancet->enable_intr(instance);
|
|
atomic_set(&instance->adprecovery, MEGASAS_HBA_OPERATIONAL);
|
|
}
|
|
out:
|
|
clear_bit(MEGASAS_FUSION_IN_RESET, &instance->reset_flags);
|
|
mutex_unlock(&instance->reset_mutex);
|
|
return retval;
|
|
}
|
|
|
|
/* Fusion Crash dump collection work queue */
|
|
void megasas_fusion_crash_dump_wq(struct work_struct *work)
|
|
{
|
|
struct megasas_instance *instance =
|
|
container_of(work, struct megasas_instance, crash_init);
|
|
u32 status_reg;
|
|
u8 partial_copy = 0;
|
|
|
|
|
|
status_reg = instance->instancet->read_fw_status_reg(instance->reg_set);
|
|
|
|
/*
|
|
* Allocate host crash buffers to copy data from 1 MB DMA crash buffer
|
|
* to host crash buffers
|
|
*/
|
|
if (instance->drv_buf_index == 0) {
|
|
/* Buffer is already allocated for old Crash dump.
|
|
* Do OCR and do not wait for crash dump collection
|
|
*/
|
|
if (instance->drv_buf_alloc) {
|
|
dev_info(&instance->pdev->dev, "earlier crash dump is "
|
|
"not yet copied by application, ignoring this "
|
|
"crash dump and initiating OCR\n");
|
|
status_reg |= MFI_STATE_CRASH_DUMP_DONE;
|
|
writel(status_reg,
|
|
&instance->reg_set->outbound_scratch_pad);
|
|
readl(&instance->reg_set->outbound_scratch_pad);
|
|
return;
|
|
}
|
|
megasas_alloc_host_crash_buffer(instance);
|
|
dev_info(&instance->pdev->dev, "Number of host crash buffers "
|
|
"allocated: %d\n", instance->drv_buf_alloc);
|
|
}
|
|
|
|
/*
|
|
* Driver has allocated max buffers, which can be allocated
|
|
* and FW has more crash dump data, then driver will
|
|
* ignore the data.
|
|
*/
|
|
if (instance->drv_buf_index >= (instance->drv_buf_alloc)) {
|
|
dev_info(&instance->pdev->dev, "Driver is done copying "
|
|
"the buffer: %d\n", instance->drv_buf_alloc);
|
|
status_reg |= MFI_STATE_CRASH_DUMP_DONE;
|
|
partial_copy = 1;
|
|
} else {
|
|
memcpy(instance->crash_buf[instance->drv_buf_index],
|
|
instance->crash_dump_buf, CRASH_DMA_BUF_SIZE);
|
|
instance->drv_buf_index++;
|
|
status_reg &= ~MFI_STATE_DMADONE;
|
|
}
|
|
|
|
if (status_reg & MFI_STATE_CRASH_DUMP_DONE) {
|
|
dev_info(&instance->pdev->dev, "Crash Dump is available,number "
|
|
"of copied buffers: %d\n", instance->drv_buf_index);
|
|
instance->fw_crash_buffer_size = instance->drv_buf_index;
|
|
instance->fw_crash_state = AVAILABLE;
|
|
instance->drv_buf_index = 0;
|
|
writel(status_reg, &instance->reg_set->outbound_scratch_pad);
|
|
readl(&instance->reg_set->outbound_scratch_pad);
|
|
if (!partial_copy)
|
|
megasas_reset_fusion(instance->host, 0);
|
|
} else {
|
|
writel(status_reg, &instance->reg_set->outbound_scratch_pad);
|
|
readl(&instance->reg_set->outbound_scratch_pad);
|
|
}
|
|
}
|
|
|
|
|
|
/* Fusion OCR work queue */
|
|
void megasas_fusion_ocr_wq(struct work_struct *work)
|
|
{
|
|
struct megasas_instance *instance =
|
|
container_of(work, struct megasas_instance, work_init);
|
|
|
|
megasas_reset_fusion(instance->host, 0);
|
|
}
|
|
|
|
/* Allocate fusion context */
|
|
int
|
|
megasas_alloc_fusion_context(struct megasas_instance *instance)
|
|
{
|
|
struct fusion_context *fusion;
|
|
|
|
instance->ctrl_context = kzalloc(sizeof(struct fusion_context),
|
|
GFP_KERNEL);
|
|
if (!instance->ctrl_context) {
|
|
dev_err(&instance->pdev->dev, "Failed from %s %d\n",
|
|
__func__, __LINE__);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
fusion = instance->ctrl_context;
|
|
|
|
fusion->log_to_span_pages = get_order(MAX_LOGICAL_DRIVES_EXT *
|
|
sizeof(LD_SPAN_INFO));
|
|
fusion->log_to_span =
|
|
(PLD_SPAN_INFO)__get_free_pages(GFP_KERNEL | __GFP_ZERO,
|
|
fusion->log_to_span_pages);
|
|
if (!fusion->log_to_span) {
|
|
fusion->log_to_span =
|
|
vzalloc(array_size(MAX_LOGICAL_DRIVES_EXT,
|
|
sizeof(LD_SPAN_INFO)));
|
|
if (!fusion->log_to_span) {
|
|
dev_err(&instance->pdev->dev, "Failed from %s %d\n",
|
|
__func__, __LINE__);
|
|
return -ENOMEM;
|
|
}
|
|
}
|
|
|
|
fusion->load_balance_info_pages = get_order(MAX_LOGICAL_DRIVES_EXT *
|
|
sizeof(struct LD_LOAD_BALANCE_INFO));
|
|
fusion->load_balance_info =
|
|
(struct LD_LOAD_BALANCE_INFO *)__get_free_pages(GFP_KERNEL | __GFP_ZERO,
|
|
fusion->load_balance_info_pages);
|
|
if (!fusion->load_balance_info) {
|
|
fusion->load_balance_info =
|
|
vzalloc(array_size(MAX_LOGICAL_DRIVES_EXT,
|
|
sizeof(struct LD_LOAD_BALANCE_INFO)));
|
|
if (!fusion->load_balance_info)
|
|
dev_err(&instance->pdev->dev, "Failed to allocate load_balance_info, "
|
|
"continuing without Load Balance support\n");
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
megasas_free_fusion_context(struct megasas_instance *instance)
|
|
{
|
|
struct fusion_context *fusion = instance->ctrl_context;
|
|
|
|
if (fusion) {
|
|
if (fusion->load_balance_info) {
|
|
if (is_vmalloc_addr(fusion->load_balance_info))
|
|
vfree(fusion->load_balance_info);
|
|
else
|
|
free_pages((ulong)fusion->load_balance_info,
|
|
fusion->load_balance_info_pages);
|
|
}
|
|
|
|
if (fusion->log_to_span) {
|
|
if (is_vmalloc_addr(fusion->log_to_span))
|
|
vfree(fusion->log_to_span);
|
|
else
|
|
free_pages((ulong)fusion->log_to_span,
|
|
fusion->log_to_span_pages);
|
|
}
|
|
|
|
kfree(fusion);
|
|
}
|
|
}
|
|
|
|
struct megasas_instance_template megasas_instance_template_fusion = {
|
|
.enable_intr = megasas_enable_intr_fusion,
|
|
.disable_intr = megasas_disable_intr_fusion,
|
|
.clear_intr = megasas_clear_intr_fusion,
|
|
.read_fw_status_reg = megasas_read_fw_status_reg_fusion,
|
|
.adp_reset = megasas_adp_reset_fusion,
|
|
.check_reset = megasas_check_reset_fusion,
|
|
.service_isr = megasas_isr_fusion,
|
|
.tasklet = megasas_complete_cmd_dpc_fusion,
|
|
.init_adapter = megasas_init_adapter_fusion,
|
|
.build_and_issue_cmd = megasas_build_and_issue_cmd_fusion,
|
|
.issue_dcmd = megasas_issue_dcmd_fusion,
|
|
};
|