2012-11-15 10:11:18 -07:00
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/*
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* This file is part of the Chelsio FCoE driver for Linux.
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*
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* Copyright (c) 2008-2012 Chelsio Communications, Inc. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/pci.h>
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#include <linux/aer.h>
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#include <linux/mm.h>
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#include <linux/notifier.h>
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#include <linux/kdebug.h>
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#include <linux/seq_file.h>
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#include <linux/debugfs.h>
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#include <linux/string.h>
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#include <linux/export.h>
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#include "csio_init.h"
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#include "csio_defs.h"
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#define CSIO_MIN_MEMPOOL_SZ 64
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static struct dentry *csio_debugfs_root;
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static struct scsi_transport_template *csio_fcoe_transport;
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static struct scsi_transport_template *csio_fcoe_transport_vport;
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/*
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* debugfs support
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*/
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static ssize_t
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csio_mem_read(struct file *file, char __user *buf, size_t count, loff_t *ppos)
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{
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loff_t pos = *ppos;
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2013-01-23 15:07:38 -07:00
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loff_t avail = file_inode(file)->i_size;
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2012-11-15 10:11:18 -07:00
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unsigned int mem = (uintptr_t)file->private_data & 3;
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struct csio_hw *hw = file->private_data - mem;
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if (pos < 0)
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return -EINVAL;
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if (pos >= avail)
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return 0;
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if (count > avail - pos)
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count = avail - pos;
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while (count) {
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size_t len;
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int ret, ofst;
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__be32 data[16];
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if (mem == MEM_MC)
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2013-03-13 23:09:08 -06:00
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ret = hw->chip_ops->chip_mc_read(hw, 0, pos,
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data, NULL);
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2012-11-15 10:11:18 -07:00
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else
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2013-03-13 23:09:08 -06:00
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ret = hw->chip_ops->chip_edc_read(hw, mem, pos,
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data, NULL);
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2012-11-15 10:11:18 -07:00
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if (ret)
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return ret;
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ofst = pos % sizeof(data);
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len = min(count, sizeof(data) - ofst);
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if (copy_to_user(buf, (u8 *)data + ofst, len))
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return -EFAULT;
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buf += len;
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pos += len;
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count -= len;
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}
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count = pos - *ppos;
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*ppos = pos;
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return count;
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}
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static const struct file_operations csio_mem_debugfs_fops = {
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.owner = THIS_MODULE,
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2012-12-02 23:22:39 -07:00
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.open = simple_open,
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2012-11-15 10:11:18 -07:00
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.read = csio_mem_read,
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.llseek = default_llseek,
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};
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2013-03-13 23:09:08 -06:00
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void csio_add_debugfs_mem(struct csio_hw *hw, const char *name,
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2012-12-21 14:08:55 -07:00
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unsigned int idx, unsigned int size_mb)
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2012-11-15 10:11:18 -07:00
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{
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2015-01-21 13:03:40 -07:00
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debugfs_create_file_size(name, S_IRUSR, hw->debugfs_root,
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(void *)hw + idx, &csio_mem_debugfs_fops,
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size_mb << 20);
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2012-11-15 10:11:18 -07:00
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}
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2012-12-21 14:08:55 -07:00
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static int csio_setup_debugfs(struct csio_hw *hw)
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2012-11-15 10:11:18 -07:00
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{
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int i;
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if (IS_ERR_OR_NULL(hw->debugfs_root))
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return -1;
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2014-11-06 21:05:24 -07:00
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i = csio_rd_reg32(hw, MA_TARGET_MEM_ENABLE_A);
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if (i & EDRAM0_ENABLE_F)
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2012-11-15 10:11:18 -07:00
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csio_add_debugfs_mem(hw, "edc0", MEM_EDC0, 5);
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2014-11-06 21:05:24 -07:00
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if (i & EDRAM1_ENABLE_F)
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2012-11-15 10:11:18 -07:00
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csio_add_debugfs_mem(hw, "edc1", MEM_EDC1, 5);
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2013-03-13 23:09:08 -06:00
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hw->chip_ops->chip_dfs_create_ext_mem(hw);
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2012-11-15 10:11:18 -07:00
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return 0;
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}
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/*
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* csio_dfs_create - Creates and sets up per-hw debugfs.
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*
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*/
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static int
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csio_dfs_create(struct csio_hw *hw)
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{
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if (csio_debugfs_root) {
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hw->debugfs_root = debugfs_create_dir(pci_name(hw->pdev),
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csio_debugfs_root);
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csio_setup_debugfs(hw);
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}
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return 0;
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}
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/*
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* csio_dfs_destroy - Destroys per-hw debugfs.
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*/
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static int
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csio_dfs_destroy(struct csio_hw *hw)
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{
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if (hw->debugfs_root)
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debugfs_remove_recursive(hw->debugfs_root);
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return 0;
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}
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/*
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* csio_dfs_init - Debug filesystem initialization for the module.
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*
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*/
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static int
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csio_dfs_init(void)
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{
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csio_debugfs_root = debugfs_create_dir(KBUILD_MODNAME, NULL);
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if (!csio_debugfs_root)
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pr_warn("Could not create debugfs entry, continuing\n");
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return 0;
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}
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/*
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* csio_dfs_exit - debugfs cleanup for the module.
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*/
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static void
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csio_dfs_exit(void)
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{
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debugfs_remove(csio_debugfs_root);
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}
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/*
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* csio_pci_init - PCI initialization.
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* @pdev: PCI device.
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* @bars: Bitmask of bars to be requested.
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*
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* Initializes the PCI function by enabling MMIO, setting bus
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* mastership and setting DMA mask.
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*/
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static int
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csio_pci_init(struct pci_dev *pdev, int *bars)
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{
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int rv = -ENODEV;
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*bars = pci_select_bars(pdev, IORESOURCE_MEM);
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if (pci_enable_device_mem(pdev))
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goto err;
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if (pci_request_selected_regions(pdev, *bars, KBUILD_MODNAME))
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goto err_disable_device;
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pci_set_master(pdev);
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pci_try_set_mwi(pdev);
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if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
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pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
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} else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
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pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
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} else {
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dev_err(&pdev->dev, "No suitable DMA available.\n");
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goto err_release_regions;
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}
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return 0;
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err_release_regions:
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pci_release_selected_regions(pdev, *bars);
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err_disable_device:
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pci_disable_device(pdev);
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err:
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return rv;
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}
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/*
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* csio_pci_exit - PCI unitialization.
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* @pdev: PCI device.
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* @bars: Bars to be released.
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*
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*/
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static void
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csio_pci_exit(struct pci_dev *pdev, int *bars)
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{
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pci_release_selected_regions(pdev, *bars);
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pci_disable_device(pdev);
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}
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/*
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* csio_hw_init_workers - Initialize the HW module's worker threads.
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* @hw: HW module.
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*
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*/
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static void
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csio_hw_init_workers(struct csio_hw *hw)
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{
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INIT_WORK(&hw->evtq_work, csio_evtq_worker);
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}
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static void
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csio_hw_exit_workers(struct csio_hw *hw)
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{
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cancel_work_sync(&hw->evtq_work);
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flush_scheduled_work();
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}
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static int
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csio_create_queues(struct csio_hw *hw)
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{
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int i, j;
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struct csio_mgmtm *mgmtm = csio_hw_to_mgmtm(hw);
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int rv;
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struct csio_scsi_cpu_info *info;
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if (hw->flags & CSIO_HWF_Q_FW_ALLOCED)
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return 0;
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if (hw->intr_mode != CSIO_IM_MSIX) {
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rv = csio_wr_iq_create(hw, NULL, hw->intr_iq_idx,
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0, hw->pport[0].portid, false, NULL);
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if (rv != 0) {
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csio_err(hw, " Forward Interrupt IQ failed!: %d\n", rv);
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return rv;
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}
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}
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/* FW event queue */
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rv = csio_wr_iq_create(hw, NULL, hw->fwevt_iq_idx,
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csio_get_fwevt_intr_idx(hw),
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hw->pport[0].portid, true, NULL);
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if (rv != 0) {
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csio_err(hw, "FW event IQ config failed!: %d\n", rv);
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return rv;
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}
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/* Create mgmt queue */
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rv = csio_wr_eq_create(hw, NULL, mgmtm->eq_idx,
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mgmtm->iq_idx, hw->pport[0].portid, NULL);
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if (rv != 0) {
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csio_err(hw, "Mgmt EQ create failed!: %d\n", rv);
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goto err;
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}
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/* Create SCSI queues */
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for (i = 0; i < hw->num_pports; i++) {
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info = &hw->scsi_cpu_info[i];
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for (j = 0; j < info->max_cpus; j++) {
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struct csio_scsi_qset *sqset = &hw->sqset[i][j];
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rv = csio_wr_iq_create(hw, NULL, sqset->iq_idx,
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sqset->intr_idx, i, false, NULL);
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if (rv != 0) {
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csio_err(hw,
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"SCSI module IQ config failed [%d][%d]:%d\n",
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i, j, rv);
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goto err;
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}
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rv = csio_wr_eq_create(hw, NULL, sqset->eq_idx,
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sqset->iq_idx, i, NULL);
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if (rv != 0) {
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csio_err(hw,
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"SCSI module EQ config failed [%d][%d]:%d\n",
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i, j, rv);
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goto err;
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}
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} /* for all CPUs */
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} /* For all ports */
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hw->flags |= CSIO_HWF_Q_FW_ALLOCED;
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return 0;
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err:
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csio_wr_destroy_queues(hw, true);
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return -EINVAL;
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}
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/*
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* csio_config_queues - Configure the DMA queues.
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* @hw: HW module.
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*
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* Allocates memory for queues are registers them with FW.
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*/
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int
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csio_config_queues(struct csio_hw *hw)
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{
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int i, j, idx, k = 0;
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int rv;
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struct csio_scsi_qset *sqset;
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struct csio_mgmtm *mgmtm = csio_hw_to_mgmtm(hw);
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struct csio_scsi_qset *orig;
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struct csio_scsi_cpu_info *info;
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if (hw->flags & CSIO_HWF_Q_MEM_ALLOCED)
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return csio_create_queues(hw);
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/* Calculate number of SCSI queues for MSIX we would like */
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|
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hw->num_scsi_msix_cpus = num_online_cpus();
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hw->num_sqsets = num_online_cpus() * hw->num_pports;
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if (hw->num_sqsets > CSIO_MAX_SCSI_QSETS) {
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hw->num_sqsets = CSIO_MAX_SCSI_QSETS;
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hw->num_scsi_msix_cpus = CSIO_MAX_SCSI_CPU;
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}
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|
|
/* Initialize max_cpus, may get reduced during msix allocations */
|
|
|
|
for (i = 0; i < hw->num_pports; i++)
|
|
|
|
hw->scsi_cpu_info[i].max_cpus = hw->num_scsi_msix_cpus;
|
|
|
|
|
|
|
|
csio_dbg(hw, "nsqsets:%d scpus:%d\n",
|
|
|
|
hw->num_sqsets, hw->num_scsi_msix_cpus);
|
|
|
|
|
|
|
|
csio_intr_enable(hw);
|
|
|
|
|
|
|
|
if (hw->intr_mode != CSIO_IM_MSIX) {
|
|
|
|
|
|
|
|
/* Allocate Forward interrupt iq. */
|
|
|
|
hw->intr_iq_idx = csio_wr_alloc_q(hw, CSIO_INTR_IQSIZE,
|
|
|
|
CSIO_INTR_WRSIZE, CSIO_INGRESS,
|
|
|
|
(void *)hw, 0, 0, NULL);
|
|
|
|
if (hw->intr_iq_idx == -1) {
|
|
|
|
csio_err(hw,
|
|
|
|
"Forward interrupt queue creation failed\n");
|
|
|
|
goto intr_disable;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Allocate the FW evt queue */
|
|
|
|
hw->fwevt_iq_idx = csio_wr_alloc_q(hw, CSIO_FWEVT_IQSIZE,
|
|
|
|
CSIO_FWEVT_WRSIZE,
|
|
|
|
CSIO_INGRESS, (void *)hw,
|
|
|
|
CSIO_FWEVT_FLBUFS, 0,
|
|
|
|
csio_fwevt_intx_handler);
|
|
|
|
if (hw->fwevt_iq_idx == -1) {
|
|
|
|
csio_err(hw, "FW evt queue creation failed\n");
|
|
|
|
goto intr_disable;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Allocate the mgmt queue */
|
|
|
|
mgmtm->eq_idx = csio_wr_alloc_q(hw, CSIO_MGMT_EQSIZE,
|
|
|
|
CSIO_MGMT_EQ_WRSIZE,
|
|
|
|
CSIO_EGRESS, (void *)hw, 0, 0, NULL);
|
|
|
|
if (mgmtm->eq_idx == -1) {
|
|
|
|
csio_err(hw, "Failed to alloc egress queue for mgmt module\n");
|
|
|
|
goto intr_disable;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Use FW IQ for MGMT req completion */
|
|
|
|
mgmtm->iq_idx = hw->fwevt_iq_idx;
|
|
|
|
|
|
|
|
/* Allocate SCSI queues */
|
|
|
|
for (i = 0; i < hw->num_pports; i++) {
|
|
|
|
info = &hw->scsi_cpu_info[i];
|
|
|
|
|
|
|
|
for (j = 0; j < hw->num_scsi_msix_cpus; j++) {
|
|
|
|
sqset = &hw->sqset[i][j];
|
|
|
|
|
|
|
|
if (j >= info->max_cpus) {
|
|
|
|
k = j % info->max_cpus;
|
|
|
|
orig = &hw->sqset[i][k];
|
|
|
|
sqset->eq_idx = orig->eq_idx;
|
|
|
|
sqset->iq_idx = orig->iq_idx;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
idx = csio_wr_alloc_q(hw, csio_scsi_eqsize, 0,
|
|
|
|
CSIO_EGRESS, (void *)hw, 0, 0,
|
|
|
|
NULL);
|
|
|
|
if (idx == -1) {
|
|
|
|
csio_err(hw, "EQ creation failed for idx:%d\n",
|
|
|
|
idx);
|
|
|
|
goto intr_disable;
|
|
|
|
}
|
|
|
|
|
|
|
|
sqset->eq_idx = idx;
|
|
|
|
|
|
|
|
idx = csio_wr_alloc_q(hw, CSIO_SCSI_IQSIZE,
|
|
|
|
CSIO_SCSI_IQ_WRSZ, CSIO_INGRESS,
|
|
|
|
(void *)hw, 0, 0,
|
|
|
|
csio_scsi_intx_handler);
|
|
|
|
if (idx == -1) {
|
|
|
|
csio_err(hw, "IQ creation failed for idx:%d\n",
|
|
|
|
idx);
|
|
|
|
goto intr_disable;
|
|
|
|
}
|
|
|
|
sqset->iq_idx = idx;
|
|
|
|
} /* for all CPUs */
|
|
|
|
} /* For all ports */
|
|
|
|
|
|
|
|
hw->flags |= CSIO_HWF_Q_MEM_ALLOCED;
|
|
|
|
|
|
|
|
rv = csio_create_queues(hw);
|
|
|
|
if (rv != 0)
|
|
|
|
goto intr_disable;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Now request IRQs for the vectors. In the event of a failure,
|
|
|
|
* cleanup is handled internally by this function.
|
|
|
|
*/
|
|
|
|
rv = csio_request_irqs(hw);
|
|
|
|
if (rv != 0)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
intr_disable:
|
|
|
|
csio_intr_disable(hw, false);
|
|
|
|
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
csio_resource_alloc(struct csio_hw *hw)
|
|
|
|
{
|
|
|
|
struct csio_wrm *wrm = csio_hw_to_wrm(hw);
|
|
|
|
int rv = -ENOMEM;
|
|
|
|
|
|
|
|
wrm->num_q = ((CSIO_MAX_SCSI_QSETS * 2) + CSIO_HW_NIQ +
|
|
|
|
CSIO_HW_NEQ + CSIO_HW_NFLQ + CSIO_HW_NINTXQ);
|
|
|
|
|
|
|
|
hw->mb_mempool = mempool_create_kmalloc_pool(CSIO_MIN_MEMPOOL_SZ,
|
|
|
|
sizeof(struct csio_mb));
|
|
|
|
if (!hw->mb_mempool)
|
|
|
|
goto err;
|
|
|
|
|
|
|
|
hw->rnode_mempool = mempool_create_kmalloc_pool(CSIO_MIN_MEMPOOL_SZ,
|
|
|
|
sizeof(struct csio_rnode));
|
|
|
|
if (!hw->rnode_mempool)
|
|
|
|
goto err_free_mb_mempool;
|
|
|
|
|
|
|
|
hw->scsi_pci_pool = pci_pool_create("csio_scsi_pci_pool", hw->pdev,
|
|
|
|
CSIO_SCSI_RSP_LEN, 8, 0);
|
|
|
|
if (!hw->scsi_pci_pool)
|
|
|
|
goto err_free_rn_pool;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
err_free_rn_pool:
|
|
|
|
mempool_destroy(hw->rnode_mempool);
|
|
|
|
hw->rnode_mempool = NULL;
|
|
|
|
err_free_mb_mempool:
|
|
|
|
mempool_destroy(hw->mb_mempool);
|
|
|
|
hw->mb_mempool = NULL;
|
|
|
|
err:
|
|
|
|
return rv;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
csio_resource_free(struct csio_hw *hw)
|
|
|
|
{
|
|
|
|
pci_pool_destroy(hw->scsi_pci_pool);
|
|
|
|
hw->scsi_pci_pool = NULL;
|
|
|
|
mempool_destroy(hw->rnode_mempool);
|
|
|
|
hw->rnode_mempool = NULL;
|
|
|
|
mempool_destroy(hw->mb_mempool);
|
|
|
|
hw->mb_mempool = NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* csio_hw_alloc - Allocate and initialize the HW module.
|
|
|
|
* @pdev: PCI device.
|
|
|
|
*
|
|
|
|
* Allocates HW structure, DMA, memory resources, maps BARS to
|
|
|
|
* host memory and initializes HW module.
|
|
|
|
*/
|
2012-12-21 14:08:55 -07:00
|
|
|
static struct csio_hw *csio_hw_alloc(struct pci_dev *pdev)
|
2012-11-15 10:11:18 -07:00
|
|
|
{
|
|
|
|
struct csio_hw *hw;
|
|
|
|
|
|
|
|
hw = kzalloc(sizeof(struct csio_hw), GFP_KERNEL);
|
|
|
|
if (!hw)
|
|
|
|
goto err;
|
|
|
|
|
|
|
|
hw->pdev = pdev;
|
|
|
|
strncpy(hw->drv_version, CSIO_DRV_VERSION, 32);
|
|
|
|
|
|
|
|
/* memory pool/DMA pool allocation */
|
|
|
|
if (csio_resource_alloc(hw))
|
|
|
|
goto err_free_hw;
|
|
|
|
|
|
|
|
/* Get the start address of registers from BAR 0 */
|
|
|
|
hw->regstart = ioremap_nocache(pci_resource_start(pdev, 0),
|
|
|
|
pci_resource_len(pdev, 0));
|
|
|
|
if (!hw->regstart) {
|
|
|
|
csio_err(hw, "Could not map BAR 0, regstart = %p\n",
|
|
|
|
hw->regstart);
|
|
|
|
goto err_resource_free;
|
|
|
|
}
|
|
|
|
|
|
|
|
csio_hw_init_workers(hw);
|
|
|
|
|
|
|
|
if (csio_hw_init(hw))
|
|
|
|
goto err_unmap_bar;
|
|
|
|
|
|
|
|
csio_dfs_create(hw);
|
|
|
|
|
|
|
|
csio_dbg(hw, "hw:%p\n", hw);
|
|
|
|
|
|
|
|
return hw;
|
|
|
|
|
|
|
|
err_unmap_bar:
|
|
|
|
csio_hw_exit_workers(hw);
|
|
|
|
iounmap(hw->regstart);
|
|
|
|
err_resource_free:
|
|
|
|
csio_resource_free(hw);
|
|
|
|
err_free_hw:
|
|
|
|
kfree(hw);
|
|
|
|
err:
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* csio_hw_free - Uninitialize and free the HW module.
|
|
|
|
* @hw: The HW module
|
|
|
|
*
|
|
|
|
* Disable interrupts, uninit the HW module, free resources, free hw.
|
|
|
|
*/
|
|
|
|
static void
|
|
|
|
csio_hw_free(struct csio_hw *hw)
|
|
|
|
{
|
|
|
|
csio_intr_disable(hw, true);
|
|
|
|
csio_hw_exit_workers(hw);
|
|
|
|
csio_hw_exit(hw);
|
|
|
|
iounmap(hw->regstart);
|
|
|
|
csio_dfs_destroy(hw);
|
|
|
|
csio_resource_free(hw);
|
|
|
|
kfree(hw);
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* csio_shost_init - Create and initialize the lnode module.
|
|
|
|
* @hw: The HW module.
|
|
|
|
* @dev: The device associated with this invocation.
|
|
|
|
* @probe: Called from probe context or not?
|
|
|
|
* @os_pln: Parent lnode if any.
|
|
|
|
*
|
|
|
|
* Allocates lnode structure via scsi_host_alloc, initializes
|
|
|
|
* shost, initializes lnode module and registers with SCSI ML
|
|
|
|
* via scsi_host_add. This function is shared between physical and
|
|
|
|
* virtual node ports.
|
|
|
|
*/
|
|
|
|
struct csio_lnode *
|
|
|
|
csio_shost_init(struct csio_hw *hw, struct device *dev,
|
|
|
|
bool probe, struct csio_lnode *pln)
|
|
|
|
{
|
|
|
|
struct Scsi_Host *shost = NULL;
|
|
|
|
struct csio_lnode *ln;
|
|
|
|
|
|
|
|
csio_fcoe_shost_template.cmd_per_lun = csio_lun_qdepth;
|
|
|
|
csio_fcoe_shost_vport_template.cmd_per_lun = csio_lun_qdepth;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* hw->pdev is the physical port's PCI dev structure,
|
|
|
|
* which will be different from the NPIV dev structure.
|
|
|
|
*/
|
|
|
|
if (dev == &hw->pdev->dev)
|
|
|
|
shost = scsi_host_alloc(
|
|
|
|
&csio_fcoe_shost_template,
|
|
|
|
sizeof(struct csio_lnode));
|
|
|
|
else
|
|
|
|
shost = scsi_host_alloc(
|
|
|
|
&csio_fcoe_shost_vport_template,
|
|
|
|
sizeof(struct csio_lnode));
|
|
|
|
|
|
|
|
if (!shost)
|
|
|
|
goto err;
|
|
|
|
|
|
|
|
ln = shost_priv(shost);
|
|
|
|
memset(ln, 0, sizeof(struct csio_lnode));
|
|
|
|
|
|
|
|
/* Link common lnode to this lnode */
|
|
|
|
ln->dev_num = (shost->host_no << 16);
|
|
|
|
|
|
|
|
shost->can_queue = CSIO_MAX_QUEUE;
|
|
|
|
shost->this_id = -1;
|
|
|
|
shost->unique_id = shost->host_no;
|
|
|
|
shost->max_cmd_len = 16; /* Max CDB length supported */
|
|
|
|
shost->max_id = min_t(uint32_t, csio_fcoe_rnodes,
|
|
|
|
hw->fres_info.max_ssns);
|
|
|
|
shost->max_lun = CSIO_MAX_LUN;
|
|
|
|
if (dev == &hw->pdev->dev)
|
|
|
|
shost->transportt = csio_fcoe_transport;
|
|
|
|
else
|
|
|
|
shost->transportt = csio_fcoe_transport_vport;
|
|
|
|
|
|
|
|
/* root lnode */
|
|
|
|
if (!hw->rln)
|
|
|
|
hw->rln = ln;
|
|
|
|
|
|
|
|
/* Other initialization here: Common, Transport specific */
|
|
|
|
if (csio_lnode_init(ln, hw, pln))
|
|
|
|
goto err_shost_put;
|
|
|
|
|
|
|
|
if (scsi_add_host(shost, dev))
|
|
|
|
goto err_lnode_exit;
|
|
|
|
|
|
|
|
return ln;
|
|
|
|
|
|
|
|
err_lnode_exit:
|
|
|
|
csio_lnode_exit(ln);
|
|
|
|
err_shost_put:
|
|
|
|
scsi_host_put(shost);
|
|
|
|
err:
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* csio_shost_exit - De-instantiate the shost.
|
|
|
|
* @ln: The lnode module corresponding to the shost.
|
|
|
|
*
|
|
|
|
*/
|
|
|
|
void
|
|
|
|
csio_shost_exit(struct csio_lnode *ln)
|
|
|
|
{
|
|
|
|
struct Scsi_Host *shost = csio_ln_to_shost(ln);
|
|
|
|
struct csio_hw *hw = csio_lnode_to_hw(ln);
|
|
|
|
|
|
|
|
/* Inform transport */
|
|
|
|
fc_remove_host(shost);
|
|
|
|
|
|
|
|
/* Inform SCSI ML */
|
|
|
|
scsi_remove_host(shost);
|
|
|
|
|
|
|
|
/* Flush all the events, so that any rnode removal events
|
|
|
|
* already queued are all handled, before we remove the lnode.
|
|
|
|
*/
|
|
|
|
spin_lock_irq(&hw->lock);
|
|
|
|
csio_evtq_flush(hw);
|
|
|
|
spin_unlock_irq(&hw->lock);
|
|
|
|
|
|
|
|
csio_lnode_exit(ln);
|
|
|
|
scsi_host_put(shost);
|
|
|
|
}
|
|
|
|
|
|
|
|
struct csio_lnode *
|
|
|
|
csio_lnode_alloc(struct csio_hw *hw)
|
|
|
|
{
|
|
|
|
return csio_shost_init(hw, &hw->pdev->dev, false, NULL);
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
csio_lnodes_block_request(struct csio_hw *hw)
|
|
|
|
{
|
|
|
|
struct Scsi_Host *shost;
|
|
|
|
struct csio_lnode *sln;
|
|
|
|
struct csio_lnode *ln;
|
|
|
|
struct list_head *cur_ln, *cur_cln;
|
|
|
|
struct csio_lnode **lnode_list;
|
|
|
|
int cur_cnt = 0, ii;
|
|
|
|
|
|
|
|
lnode_list = kzalloc((sizeof(struct csio_lnode *) * hw->num_lns),
|
|
|
|
GFP_KERNEL);
|
|
|
|
if (!lnode_list) {
|
|
|
|
csio_err(hw, "Failed to allocate lnodes_list");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
spin_lock_irq(&hw->lock);
|
|
|
|
/* Traverse sibling lnodes */
|
|
|
|
list_for_each(cur_ln, &hw->sln_head) {
|
|
|
|
sln = (struct csio_lnode *) cur_ln;
|
|
|
|
lnode_list[cur_cnt++] = sln;
|
|
|
|
|
|
|
|
/* Traverse children lnodes */
|
|
|
|
list_for_each(cur_cln, &sln->cln_head)
|
|
|
|
lnode_list[cur_cnt++] = (struct csio_lnode *) cur_cln;
|
|
|
|
}
|
|
|
|
spin_unlock_irq(&hw->lock);
|
|
|
|
|
|
|
|
for (ii = 0; ii < cur_cnt; ii++) {
|
|
|
|
csio_dbg(hw, "Blocking IOs on lnode: %p\n", lnode_list[ii]);
|
|
|
|
ln = lnode_list[ii];
|
|
|
|
shost = csio_ln_to_shost(ln);
|
|
|
|
scsi_block_requests(shost);
|
|
|
|
|
|
|
|
}
|
|
|
|
kfree(lnode_list);
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
csio_lnodes_unblock_request(struct csio_hw *hw)
|
|
|
|
{
|
|
|
|
struct csio_lnode *ln;
|
|
|
|
struct Scsi_Host *shost;
|
|
|
|
struct csio_lnode *sln;
|
|
|
|
struct list_head *cur_ln, *cur_cln;
|
|
|
|
struct csio_lnode **lnode_list;
|
|
|
|
int cur_cnt = 0, ii;
|
|
|
|
|
|
|
|
lnode_list = kzalloc((sizeof(struct csio_lnode *) * hw->num_lns),
|
|
|
|
GFP_KERNEL);
|
|
|
|
if (!lnode_list) {
|
|
|
|
csio_err(hw, "Failed to allocate lnodes_list");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
spin_lock_irq(&hw->lock);
|
|
|
|
/* Traverse sibling lnodes */
|
|
|
|
list_for_each(cur_ln, &hw->sln_head) {
|
|
|
|
sln = (struct csio_lnode *) cur_ln;
|
|
|
|
lnode_list[cur_cnt++] = sln;
|
|
|
|
|
|
|
|
/* Traverse children lnodes */
|
|
|
|
list_for_each(cur_cln, &sln->cln_head)
|
|
|
|
lnode_list[cur_cnt++] = (struct csio_lnode *) cur_cln;
|
|
|
|
}
|
|
|
|
spin_unlock_irq(&hw->lock);
|
|
|
|
|
|
|
|
for (ii = 0; ii < cur_cnt; ii++) {
|
|
|
|
csio_dbg(hw, "unblocking IOs on lnode: %p\n", lnode_list[ii]);
|
|
|
|
ln = lnode_list[ii];
|
|
|
|
shost = csio_ln_to_shost(ln);
|
|
|
|
scsi_unblock_requests(shost);
|
|
|
|
}
|
|
|
|
kfree(lnode_list);
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
csio_lnodes_block_by_port(struct csio_hw *hw, uint8_t portid)
|
|
|
|
{
|
|
|
|
struct csio_lnode *ln;
|
|
|
|
struct Scsi_Host *shost;
|
|
|
|
struct csio_lnode *sln;
|
|
|
|
struct list_head *cur_ln, *cur_cln;
|
|
|
|
struct csio_lnode **lnode_list;
|
|
|
|
int cur_cnt = 0, ii;
|
|
|
|
|
|
|
|
lnode_list = kzalloc((sizeof(struct csio_lnode *) * hw->num_lns),
|
|
|
|
GFP_KERNEL);
|
|
|
|
if (!lnode_list) {
|
|
|
|
csio_err(hw, "Failed to allocate lnodes_list");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
spin_lock_irq(&hw->lock);
|
|
|
|
/* Traverse sibling lnodes */
|
|
|
|
list_for_each(cur_ln, &hw->sln_head) {
|
|
|
|
sln = (struct csio_lnode *) cur_ln;
|
|
|
|
if (sln->portid != portid)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
lnode_list[cur_cnt++] = sln;
|
|
|
|
|
|
|
|
/* Traverse children lnodes */
|
|
|
|
list_for_each(cur_cln, &sln->cln_head)
|
|
|
|
lnode_list[cur_cnt++] = (struct csio_lnode *) cur_cln;
|
|
|
|
}
|
|
|
|
spin_unlock_irq(&hw->lock);
|
|
|
|
|
|
|
|
for (ii = 0; ii < cur_cnt; ii++) {
|
|
|
|
csio_dbg(hw, "Blocking IOs on lnode: %p\n", lnode_list[ii]);
|
|
|
|
ln = lnode_list[ii];
|
|
|
|
shost = csio_ln_to_shost(ln);
|
|
|
|
scsi_block_requests(shost);
|
|
|
|
}
|
|
|
|
kfree(lnode_list);
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
csio_lnodes_unblock_by_port(struct csio_hw *hw, uint8_t portid)
|
|
|
|
{
|
|
|
|
struct csio_lnode *ln;
|
|
|
|
struct Scsi_Host *shost;
|
|
|
|
struct csio_lnode *sln;
|
|
|
|
struct list_head *cur_ln, *cur_cln;
|
|
|
|
struct csio_lnode **lnode_list;
|
|
|
|
int cur_cnt = 0, ii;
|
|
|
|
|
|
|
|
lnode_list = kzalloc((sizeof(struct csio_lnode *) * hw->num_lns),
|
|
|
|
GFP_KERNEL);
|
|
|
|
if (!lnode_list) {
|
|
|
|
csio_err(hw, "Failed to allocate lnodes_list");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
spin_lock_irq(&hw->lock);
|
|
|
|
/* Traverse sibling lnodes */
|
|
|
|
list_for_each(cur_ln, &hw->sln_head) {
|
|
|
|
sln = (struct csio_lnode *) cur_ln;
|
|
|
|
if (sln->portid != portid)
|
|
|
|
continue;
|
|
|
|
lnode_list[cur_cnt++] = sln;
|
|
|
|
|
|
|
|
/* Traverse children lnodes */
|
|
|
|
list_for_each(cur_cln, &sln->cln_head)
|
|
|
|
lnode_list[cur_cnt++] = (struct csio_lnode *) cur_cln;
|
|
|
|
}
|
|
|
|
spin_unlock_irq(&hw->lock);
|
|
|
|
|
|
|
|
for (ii = 0; ii < cur_cnt; ii++) {
|
|
|
|
csio_dbg(hw, "unblocking IOs on lnode: %p\n", lnode_list[ii]);
|
|
|
|
ln = lnode_list[ii];
|
|
|
|
shost = csio_ln_to_shost(ln);
|
|
|
|
scsi_unblock_requests(shost);
|
|
|
|
}
|
|
|
|
kfree(lnode_list);
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
csio_lnodes_exit(struct csio_hw *hw, bool npiv)
|
|
|
|
{
|
|
|
|
struct csio_lnode *sln;
|
|
|
|
struct csio_lnode *ln;
|
|
|
|
struct list_head *cur_ln, *cur_cln;
|
|
|
|
struct csio_lnode **lnode_list;
|
|
|
|
int cur_cnt = 0, ii;
|
|
|
|
|
|
|
|
lnode_list = kzalloc((sizeof(struct csio_lnode *) * hw->num_lns),
|
|
|
|
GFP_KERNEL);
|
|
|
|
if (!lnode_list) {
|
|
|
|
csio_err(hw, "lnodes_exit: Failed to allocate lnodes_list.\n");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Get all child lnodes(NPIV ports) */
|
|
|
|
spin_lock_irq(&hw->lock);
|
|
|
|
list_for_each(cur_ln, &hw->sln_head) {
|
|
|
|
sln = (struct csio_lnode *) cur_ln;
|
|
|
|
|
|
|
|
/* Traverse children lnodes */
|
|
|
|
list_for_each(cur_cln, &sln->cln_head)
|
|
|
|
lnode_list[cur_cnt++] = (struct csio_lnode *) cur_cln;
|
|
|
|
}
|
|
|
|
spin_unlock_irq(&hw->lock);
|
|
|
|
|
|
|
|
/* Delete NPIV lnodes */
|
|
|
|
for (ii = 0; ii < cur_cnt; ii++) {
|
|
|
|
csio_dbg(hw, "Deleting child lnode: %p\n", lnode_list[ii]);
|
|
|
|
ln = lnode_list[ii];
|
|
|
|
fc_vport_terminate(ln->fc_vport);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Delete only npiv lnodes */
|
|
|
|
if (npiv)
|
|
|
|
goto free_lnodes;
|
|
|
|
|
|
|
|
cur_cnt = 0;
|
|
|
|
/* Get all physical lnodes */
|
|
|
|
spin_lock_irq(&hw->lock);
|
|
|
|
/* Traverse sibling lnodes */
|
|
|
|
list_for_each(cur_ln, &hw->sln_head) {
|
|
|
|
sln = (struct csio_lnode *) cur_ln;
|
|
|
|
lnode_list[cur_cnt++] = sln;
|
|
|
|
}
|
|
|
|
spin_unlock_irq(&hw->lock);
|
|
|
|
|
|
|
|
/* Delete physical lnodes */
|
|
|
|
for (ii = 0; ii < cur_cnt; ii++) {
|
|
|
|
csio_dbg(hw, "Deleting parent lnode: %p\n", lnode_list[ii]);
|
|
|
|
csio_shost_exit(lnode_list[ii]);
|
|
|
|
}
|
|
|
|
|
|
|
|
free_lnodes:
|
|
|
|
kfree(lnode_list);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* csio_lnode_init_post: Set lnode attributes after starting HW.
|
|
|
|
* @ln: lnode.
|
|
|
|
*
|
|
|
|
*/
|
|
|
|
static void
|
|
|
|
csio_lnode_init_post(struct csio_lnode *ln)
|
|
|
|
{
|
|
|
|
struct Scsi_Host *shost = csio_ln_to_shost(ln);
|
|
|
|
|
|
|
|
csio_fchost_attr_init(ln);
|
|
|
|
|
|
|
|
scsi_scan_host(shost);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* csio_probe_one - Instantiate this function.
|
|
|
|
* @pdev: PCI device
|
|
|
|
* @id: Device ID
|
|
|
|
*
|
|
|
|
* This is the .probe() callback of the driver. This function:
|
|
|
|
* - Initializes the PCI function by enabling MMIO, setting bus
|
|
|
|
* mastership and setting DMA mask.
|
|
|
|
* - Allocates HW structure, DMA, memory resources, maps BARS to
|
|
|
|
* host memory and initializes HW module.
|
|
|
|
* - Allocates lnode structure via scsi_host_alloc, initializes
|
|
|
|
* shost, initialized lnode module and registers with SCSI ML
|
|
|
|
* via scsi_host_add.
|
|
|
|
* - Enables interrupts, and starts the chip by kicking off the
|
|
|
|
* HW state machine.
|
|
|
|
* - Once hardware is ready, initiated scan of the host via
|
|
|
|
* scsi_scan_host.
|
|
|
|
*/
|
2012-12-21 14:08:55 -07:00
|
|
|
static int csio_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
|
2012-11-15 10:11:18 -07:00
|
|
|
{
|
|
|
|
int rv;
|
|
|
|
int bars;
|
|
|
|
int i;
|
|
|
|
struct csio_hw *hw;
|
|
|
|
struct csio_lnode *ln;
|
|
|
|
|
2014-11-24 20:03:58 -07:00
|
|
|
/* probe only T5 cards */
|
|
|
|
if (!csio_is_t5((pdev->device & CSIO_HW_CHIP_MASK)))
|
|
|
|
return -ENODEV;
|
|
|
|
|
2012-11-15 10:11:18 -07:00
|
|
|
rv = csio_pci_init(pdev, &bars);
|
|
|
|
if (rv)
|
|
|
|
goto err;
|
|
|
|
|
|
|
|
hw = csio_hw_alloc(pdev);
|
|
|
|
if (!hw) {
|
|
|
|
rv = -ENODEV;
|
|
|
|
goto err_pci_exit;
|
|
|
|
}
|
|
|
|
|
|
|
|
pci_set_drvdata(pdev, hw);
|
|
|
|
|
|
|
|
if (csio_hw_start(hw) != 0) {
|
|
|
|
dev_err(&pdev->dev,
|
|
|
|
"Failed to start FW, continuing in debug mode.\n");
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
sprintf(hw->fwrev_str, "%u.%u.%u.%u\n",
|
2014-11-21 00:22:05 -07:00
|
|
|
FW_HDR_FW_VER_MAJOR_G(hw->fwrev),
|
|
|
|
FW_HDR_FW_VER_MINOR_G(hw->fwrev),
|
|
|
|
FW_HDR_FW_VER_MICRO_G(hw->fwrev),
|
|
|
|
FW_HDR_FW_VER_BUILD_G(hw->fwrev));
|
2012-11-15 10:11:18 -07:00
|
|
|
|
|
|
|
for (i = 0; i < hw->num_pports; i++) {
|
|
|
|
ln = csio_shost_init(hw, &pdev->dev, true, NULL);
|
|
|
|
if (!ln) {
|
|
|
|
rv = -ENODEV;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
/* Initialize portid */
|
|
|
|
ln->portid = hw->pport[i].portid;
|
|
|
|
|
|
|
|
spin_lock_irq(&hw->lock);
|
|
|
|
if (csio_lnode_start(ln) != 0)
|
|
|
|
rv = -ENODEV;
|
|
|
|
spin_unlock_irq(&hw->lock);
|
|
|
|
|
|
|
|
if (rv)
|
|
|
|
break;
|
|
|
|
|
|
|
|
csio_lnode_init_post(ln);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (rv)
|
|
|
|
goto err_lnode_exit;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
err_lnode_exit:
|
|
|
|
csio_lnodes_block_request(hw);
|
|
|
|
spin_lock_irq(&hw->lock);
|
|
|
|
csio_hw_stop(hw);
|
|
|
|
spin_unlock_irq(&hw->lock);
|
|
|
|
csio_lnodes_unblock_request(hw);
|
|
|
|
csio_lnodes_exit(hw, 0);
|
|
|
|
csio_hw_free(hw);
|
|
|
|
err_pci_exit:
|
|
|
|
csio_pci_exit(pdev, &bars);
|
|
|
|
err:
|
|
|
|
dev_err(&pdev->dev, "probe of device failed: %d\n", rv);
|
|
|
|
return rv;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* csio_remove_one - Remove one instance of the driver at this PCI function.
|
|
|
|
* @pdev: PCI device
|
|
|
|
*
|
|
|
|
* Used during hotplug operation.
|
|
|
|
*/
|
2012-12-21 14:08:55 -07:00
|
|
|
static void csio_remove_one(struct pci_dev *pdev)
|
2012-11-15 10:11:18 -07:00
|
|
|
{
|
|
|
|
struct csio_hw *hw = pci_get_drvdata(pdev);
|
|
|
|
int bars = pci_select_bars(pdev, IORESOURCE_MEM);
|
|
|
|
|
|
|
|
csio_lnodes_block_request(hw);
|
|
|
|
spin_lock_irq(&hw->lock);
|
|
|
|
|
|
|
|
/* Stops lnode, Rnode s/m
|
|
|
|
* Quiesce IOs.
|
|
|
|
* All sessions with remote ports are unregistered.
|
|
|
|
*/
|
|
|
|
csio_hw_stop(hw);
|
|
|
|
spin_unlock_irq(&hw->lock);
|
|
|
|
csio_lnodes_unblock_request(hw);
|
|
|
|
|
|
|
|
csio_lnodes_exit(hw, 0);
|
|
|
|
csio_hw_free(hw);
|
|
|
|
csio_pci_exit(pdev, &bars);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* csio_pci_error_detected - PCI error was detected
|
|
|
|
* @pdev: PCI device
|
|
|
|
*
|
|
|
|
*/
|
|
|
|
static pci_ers_result_t
|
|
|
|
csio_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
|
|
|
|
{
|
|
|
|
struct csio_hw *hw = pci_get_drvdata(pdev);
|
|
|
|
|
|
|
|
csio_lnodes_block_request(hw);
|
|
|
|
spin_lock_irq(&hw->lock);
|
|
|
|
|
|
|
|
/* Post PCI error detected evt to HW s/m
|
|
|
|
* HW s/m handles this evt by quiescing IOs, unregisters rports
|
|
|
|
* and finally takes the device to offline.
|
|
|
|
*/
|
|
|
|
csio_post_event(&hw->sm, CSIO_HWE_PCIERR_DETECTED);
|
|
|
|
spin_unlock_irq(&hw->lock);
|
|
|
|
csio_lnodes_unblock_request(hw);
|
|
|
|
csio_lnodes_exit(hw, 0);
|
|
|
|
csio_intr_disable(hw, true);
|
|
|
|
pci_disable_device(pdev);
|
|
|
|
return state == pci_channel_io_perm_failure ?
|
|
|
|
PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_NEED_RESET;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* csio_pci_slot_reset - PCI slot has been reset.
|
|
|
|
* @pdev: PCI device
|
|
|
|
*
|
|
|
|
*/
|
|
|
|
static pci_ers_result_t
|
|
|
|
csio_pci_slot_reset(struct pci_dev *pdev)
|
|
|
|
{
|
|
|
|
struct csio_hw *hw = pci_get_drvdata(pdev);
|
|
|
|
int ready;
|
|
|
|
|
|
|
|
if (pci_enable_device(pdev)) {
|
|
|
|
dev_err(&pdev->dev, "cannot re-enable device in slot reset\n");
|
|
|
|
return PCI_ERS_RESULT_DISCONNECT;
|
|
|
|
}
|
|
|
|
|
|
|
|
pci_set_master(pdev);
|
|
|
|
pci_restore_state(pdev);
|
|
|
|
pci_save_state(pdev);
|
|
|
|
pci_cleanup_aer_uncorrect_error_status(pdev);
|
|
|
|
|
|
|
|
/* Bring HW s/m to ready state.
|
|
|
|
* but don't resume IOs.
|
|
|
|
*/
|
|
|
|
spin_lock_irq(&hw->lock);
|
|
|
|
csio_post_event(&hw->sm, CSIO_HWE_PCIERR_SLOT_RESET);
|
|
|
|
ready = csio_is_hw_ready(hw);
|
|
|
|
spin_unlock_irq(&hw->lock);
|
|
|
|
|
|
|
|
if (ready) {
|
|
|
|
return PCI_ERS_RESULT_RECOVERED;
|
|
|
|
} else {
|
|
|
|
dev_err(&pdev->dev, "Can't initialize HW when in slot reset\n");
|
|
|
|
return PCI_ERS_RESULT_DISCONNECT;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* csio_pci_resume - Resume normal operations
|
|
|
|
* @pdev: PCI device
|
|
|
|
*
|
|
|
|
*/
|
|
|
|
static void
|
|
|
|
csio_pci_resume(struct pci_dev *pdev)
|
|
|
|
{
|
|
|
|
struct csio_hw *hw = pci_get_drvdata(pdev);
|
|
|
|
struct csio_lnode *ln;
|
|
|
|
int rv = 0;
|
|
|
|
int i;
|
|
|
|
|
|
|
|
/* Bring the LINK UP and Resume IO */
|
|
|
|
|
|
|
|
for (i = 0; i < hw->num_pports; i++) {
|
|
|
|
ln = csio_shost_init(hw, &pdev->dev, true, NULL);
|
|
|
|
if (!ln) {
|
|
|
|
rv = -ENODEV;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
/* Initialize portid */
|
|
|
|
ln->portid = hw->pport[i].portid;
|
|
|
|
|
|
|
|
spin_lock_irq(&hw->lock);
|
|
|
|
if (csio_lnode_start(ln) != 0)
|
|
|
|
rv = -ENODEV;
|
|
|
|
spin_unlock_irq(&hw->lock);
|
|
|
|
|
|
|
|
if (rv)
|
|
|
|
break;
|
|
|
|
|
|
|
|
csio_lnode_init_post(ln);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (rv)
|
|
|
|
goto err_resume_exit;
|
|
|
|
|
|
|
|
return;
|
|
|
|
|
|
|
|
err_resume_exit:
|
|
|
|
csio_lnodes_block_request(hw);
|
|
|
|
spin_lock_irq(&hw->lock);
|
|
|
|
csio_hw_stop(hw);
|
|
|
|
spin_unlock_irq(&hw->lock);
|
|
|
|
csio_lnodes_unblock_request(hw);
|
|
|
|
csio_lnodes_exit(hw, 0);
|
|
|
|
csio_hw_free(hw);
|
|
|
|
dev_err(&pdev->dev, "resume of device failed: %d\n", rv);
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct pci_error_handlers csio_err_handler = {
|
|
|
|
.error_detected = csio_pci_error_detected,
|
|
|
|
.slot_reset = csio_pci_slot_reset,
|
|
|
|
.resume = csio_pci_resume,
|
|
|
|
};
|
|
|
|
|
2014-11-24 20:03:58 -07:00
|
|
|
/*
|
|
|
|
* Macros needed to support the PCI Device ID Table ...
|
|
|
|
*/
|
|
|
|
#define CH_PCI_DEVICE_ID_TABLE_DEFINE_BEGIN \
|
2015-03-19 10:57:36 -06:00
|
|
|
static const struct pci_device_id csio_pci_tbl[] = {
|
2015-01-16 09:00:19 -07:00
|
|
|
/* Define for FCoE uses PF6 */
|
|
|
|
#define CH_PCI_DEVICE_ID_FUNCTION 0x6
|
2014-11-24 20:03:58 -07:00
|
|
|
|
|
|
|
#define CH_PCI_ID_TABLE_ENTRY(devid) \
|
|
|
|
{ PCI_VDEVICE(CHELSIO, (devid)), 0 }
|
|
|
|
|
|
|
|
#define CH_PCI_DEVICE_ID_TABLE_DEFINE_END { 0, } }
|
2012-11-15 10:11:18 -07:00
|
|
|
|
2014-11-24 20:03:58 -07:00
|
|
|
#include "t4_pci_id_tbl.h"
|
2012-11-15 10:11:18 -07:00
|
|
|
|
|
|
|
static struct pci_driver csio_pci_driver = {
|
|
|
|
.name = KBUILD_MODNAME,
|
|
|
|
.driver = {
|
|
|
|
.owner = THIS_MODULE,
|
|
|
|
},
|
|
|
|
.id_table = csio_pci_tbl,
|
|
|
|
.probe = csio_probe_one,
|
|
|
|
.remove = csio_remove_one,
|
|
|
|
.err_handler = &csio_err_handler,
|
|
|
|
};
|
|
|
|
|
|
|
|
/*
|
|
|
|
* csio_init - Chelsio storage driver initialization function.
|
|
|
|
*
|
|
|
|
*/
|
|
|
|
static int __init
|
|
|
|
csio_init(void)
|
|
|
|
{
|
|
|
|
int rv = -ENOMEM;
|
|
|
|
|
|
|
|
pr_info("%s %s\n", CSIO_DRV_DESC, CSIO_DRV_VERSION);
|
|
|
|
|
|
|
|
csio_dfs_init();
|
|
|
|
|
|
|
|
csio_fcoe_transport = fc_attach_transport(&csio_fc_transport_funcs);
|
|
|
|
if (!csio_fcoe_transport)
|
|
|
|
goto err;
|
|
|
|
|
|
|
|
csio_fcoe_transport_vport =
|
|
|
|
fc_attach_transport(&csio_fc_transport_vport_funcs);
|
|
|
|
if (!csio_fcoe_transport_vport)
|
|
|
|
goto err_vport;
|
|
|
|
|
|
|
|
rv = pci_register_driver(&csio_pci_driver);
|
|
|
|
if (rv)
|
|
|
|
goto err_pci;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
err_pci:
|
|
|
|
fc_release_transport(csio_fcoe_transport_vport);
|
|
|
|
err_vport:
|
|
|
|
fc_release_transport(csio_fcoe_transport);
|
|
|
|
err:
|
|
|
|
csio_dfs_exit();
|
|
|
|
return rv;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* csio_exit - Chelsio storage driver uninitialization .
|
|
|
|
*
|
|
|
|
* Function that gets called in the unload path.
|
|
|
|
*/
|
|
|
|
static void __exit
|
|
|
|
csio_exit(void)
|
|
|
|
{
|
|
|
|
pci_unregister_driver(&csio_pci_driver);
|
|
|
|
csio_dfs_exit();
|
|
|
|
fc_release_transport(csio_fcoe_transport_vport);
|
|
|
|
fc_release_transport(csio_fcoe_transport);
|
|
|
|
}
|
|
|
|
|
|
|
|
module_init(csio_init);
|
|
|
|
module_exit(csio_exit);
|
|
|
|
MODULE_AUTHOR(CSIO_DRV_AUTHOR);
|
|
|
|
MODULE_DESCRIPTION(CSIO_DRV_DESC);
|
|
|
|
MODULE_LICENSE(CSIO_DRV_LICENSE);
|
|
|
|
MODULE_DEVICE_TABLE(pci, csio_pci_tbl);
|
|
|
|
MODULE_VERSION(CSIO_DRV_VERSION);
|
2013-03-13 23:09:08 -06:00
|
|
|
MODULE_FIRMWARE(FW_FNAME_T5);
|