![Tejun Heo](/assets/img/avatar_default.png)
percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
1092 lines
28 KiB
C
1092 lines
28 KiB
C
/*
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* Aic94xx SAS/SATA driver initialization.
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*
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* Copyright (C) 2005 Adaptec, Inc. All rights reserved.
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* Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
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*
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* This file is licensed under GPLv2.
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*
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* This file is part of the aic94xx driver.
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*
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* The aic94xx driver is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; version 2 of the
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* License.
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*
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* The aic94xx driver 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 GNU
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* 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 the aic94xx driver; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/pci.h>
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#include <linux/delay.h>
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#include <linux/firmware.h>
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#include <linux/slab.h>
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#include <scsi/scsi_host.h>
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#include "aic94xx.h"
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#include "aic94xx_reg.h"
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#include "aic94xx_hwi.h"
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#include "aic94xx_seq.h"
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#include "aic94xx_sds.h"
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/* The format is "version.release.patchlevel" */
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#define ASD_DRIVER_VERSION "1.0.3"
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static int use_msi = 0;
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module_param_named(use_msi, use_msi, int, S_IRUGO);
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MODULE_PARM_DESC(use_msi, "\n"
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"\tEnable(1) or disable(0) using PCI MSI.\n"
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"\tDefault: 0");
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static int lldd_max_execute_num = 0;
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module_param_named(collector, lldd_max_execute_num, int, S_IRUGO);
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MODULE_PARM_DESC(collector, "\n"
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"\tIf greater than one, tells the SAS Layer to run in Task Collector\n"
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"\tMode. If 1 or 0, tells the SAS Layer to run in Direct Mode.\n"
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"\tThe aic94xx SAS LLDD supports both modes.\n"
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"\tDefault: 0 (Direct Mode).\n");
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static struct scsi_transport_template *aic94xx_transport_template;
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static int asd_scan_finished(struct Scsi_Host *, unsigned long);
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static void asd_scan_start(struct Scsi_Host *);
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static struct scsi_host_template aic94xx_sht = {
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.module = THIS_MODULE,
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/* .name is initialized */
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.name = "aic94xx",
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.queuecommand = sas_queuecommand,
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.target_alloc = sas_target_alloc,
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.slave_configure = sas_slave_configure,
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.slave_destroy = sas_slave_destroy,
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.scan_finished = asd_scan_finished,
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.scan_start = asd_scan_start,
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.change_queue_depth = sas_change_queue_depth,
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.change_queue_type = sas_change_queue_type,
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.bios_param = sas_bios_param,
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.can_queue = 1,
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.cmd_per_lun = 1,
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.this_id = -1,
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.sg_tablesize = SG_ALL,
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.max_sectors = SCSI_DEFAULT_MAX_SECTORS,
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.use_clustering = ENABLE_CLUSTERING,
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.eh_device_reset_handler = sas_eh_device_reset_handler,
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.eh_bus_reset_handler = sas_eh_bus_reset_handler,
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.slave_alloc = sas_slave_alloc,
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.target_destroy = sas_target_destroy,
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.ioctl = sas_ioctl,
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};
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static int __devinit asd_map_memio(struct asd_ha_struct *asd_ha)
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{
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int err, i;
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struct asd_ha_addrspace *io_handle;
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asd_ha->iospace = 0;
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for (i = 0; i < 3; i += 2) {
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io_handle = &asd_ha->io_handle[i==0?0:1];
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io_handle->start = pci_resource_start(asd_ha->pcidev, i);
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io_handle->len = pci_resource_len(asd_ha->pcidev, i);
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io_handle->flags = pci_resource_flags(asd_ha->pcidev, i);
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err = -ENODEV;
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if (!io_handle->start || !io_handle->len) {
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asd_printk("MBAR%d start or length for %s is 0.\n",
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i==0?0:1, pci_name(asd_ha->pcidev));
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goto Err;
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}
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err = pci_request_region(asd_ha->pcidev, i, ASD_DRIVER_NAME);
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if (err) {
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asd_printk("couldn't reserve memory region for %s\n",
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pci_name(asd_ha->pcidev));
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goto Err;
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}
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if (io_handle->flags & IORESOURCE_CACHEABLE)
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io_handle->addr = ioremap(io_handle->start,
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io_handle->len);
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else
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io_handle->addr = ioremap_nocache(io_handle->start,
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io_handle->len);
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if (!io_handle->addr) {
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asd_printk("couldn't map MBAR%d of %s\n", i==0?0:1,
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pci_name(asd_ha->pcidev));
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goto Err_unreq;
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}
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}
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return 0;
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Err_unreq:
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pci_release_region(asd_ha->pcidev, i);
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Err:
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if (i > 0) {
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io_handle = &asd_ha->io_handle[0];
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iounmap(io_handle->addr);
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pci_release_region(asd_ha->pcidev, 0);
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}
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return err;
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}
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static void asd_unmap_memio(struct asd_ha_struct *asd_ha)
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{
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struct asd_ha_addrspace *io_handle;
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io_handle = &asd_ha->io_handle[1];
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iounmap(io_handle->addr);
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pci_release_region(asd_ha->pcidev, 2);
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io_handle = &asd_ha->io_handle[0];
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iounmap(io_handle->addr);
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pci_release_region(asd_ha->pcidev, 0);
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}
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static int __devinit asd_map_ioport(struct asd_ha_struct *asd_ha)
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{
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int i = PCI_IOBAR_OFFSET, err;
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struct asd_ha_addrspace *io_handle = &asd_ha->io_handle[0];
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asd_ha->iospace = 1;
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io_handle->start = pci_resource_start(asd_ha->pcidev, i);
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io_handle->len = pci_resource_len(asd_ha->pcidev, i);
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io_handle->flags = pci_resource_flags(asd_ha->pcidev, i);
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io_handle->addr = (void __iomem *) io_handle->start;
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if (!io_handle->start || !io_handle->len) {
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asd_printk("couldn't get IO ports for %s\n",
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pci_name(asd_ha->pcidev));
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return -ENODEV;
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}
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err = pci_request_region(asd_ha->pcidev, i, ASD_DRIVER_NAME);
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if (err) {
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asd_printk("couldn't reserve io space for %s\n",
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pci_name(asd_ha->pcidev));
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}
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return err;
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}
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static void asd_unmap_ioport(struct asd_ha_struct *asd_ha)
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{
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pci_release_region(asd_ha->pcidev, PCI_IOBAR_OFFSET);
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}
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static int __devinit asd_map_ha(struct asd_ha_struct *asd_ha)
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{
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int err;
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u16 cmd_reg;
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err = pci_read_config_word(asd_ha->pcidev, PCI_COMMAND, &cmd_reg);
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if (err) {
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asd_printk("couldn't read command register of %s\n",
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pci_name(asd_ha->pcidev));
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goto Err;
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}
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err = -ENODEV;
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if (cmd_reg & PCI_COMMAND_MEMORY) {
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if ((err = asd_map_memio(asd_ha)))
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goto Err;
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} else if (cmd_reg & PCI_COMMAND_IO) {
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if ((err = asd_map_ioport(asd_ha)))
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goto Err;
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asd_printk("%s ioport mapped -- upgrade your hardware\n",
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pci_name(asd_ha->pcidev));
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} else {
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asd_printk("no proper device access to %s\n",
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pci_name(asd_ha->pcidev));
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goto Err;
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}
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return 0;
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Err:
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return err;
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}
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static void asd_unmap_ha(struct asd_ha_struct *asd_ha)
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{
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if (asd_ha->iospace)
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asd_unmap_ioport(asd_ha);
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else
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asd_unmap_memio(asd_ha);
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}
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static const char *asd_dev_rev[30] = {
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[0] = "A0",
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[1] = "A1",
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[8] = "B0",
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};
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static int __devinit asd_common_setup(struct asd_ha_struct *asd_ha)
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{
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int err, i;
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asd_ha->revision_id = asd_ha->pcidev->revision;
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err = -ENODEV;
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if (asd_ha->revision_id < AIC9410_DEV_REV_B0) {
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asd_printk("%s is revision %s (%X), which is not supported\n",
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pci_name(asd_ha->pcidev),
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asd_dev_rev[asd_ha->revision_id],
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asd_ha->revision_id);
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goto Err;
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}
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/* Provide some sane default values. */
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asd_ha->hw_prof.max_scbs = 512;
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asd_ha->hw_prof.max_ddbs = ASD_MAX_DDBS;
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asd_ha->hw_prof.num_phys = ASD_MAX_PHYS;
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/* All phys are enabled, by default. */
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asd_ha->hw_prof.enabled_phys = 0xFF;
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for (i = 0; i < ASD_MAX_PHYS; i++) {
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asd_ha->hw_prof.phy_desc[i].max_sas_lrate =
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SAS_LINK_RATE_3_0_GBPS;
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asd_ha->hw_prof.phy_desc[i].min_sas_lrate =
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SAS_LINK_RATE_1_5_GBPS;
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asd_ha->hw_prof.phy_desc[i].max_sata_lrate =
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SAS_LINK_RATE_1_5_GBPS;
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asd_ha->hw_prof.phy_desc[i].min_sata_lrate =
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SAS_LINK_RATE_1_5_GBPS;
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}
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return 0;
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Err:
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return err;
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}
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static int __devinit asd_aic9410_setup(struct asd_ha_struct *asd_ha)
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{
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int err = asd_common_setup(asd_ha);
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if (err)
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return err;
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asd_ha->hw_prof.addr_range = 8;
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asd_ha->hw_prof.port_name_base = 0;
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asd_ha->hw_prof.dev_name_base = 8;
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asd_ha->hw_prof.sata_name_base = 16;
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return 0;
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}
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static int __devinit asd_aic9405_setup(struct asd_ha_struct *asd_ha)
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{
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int err = asd_common_setup(asd_ha);
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if (err)
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return err;
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asd_ha->hw_prof.addr_range = 4;
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asd_ha->hw_prof.port_name_base = 0;
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asd_ha->hw_prof.dev_name_base = 4;
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asd_ha->hw_prof.sata_name_base = 8;
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return 0;
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}
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static ssize_t asd_show_dev_rev(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
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return snprintf(buf, PAGE_SIZE, "%s\n",
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asd_dev_rev[asd_ha->revision_id]);
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}
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static DEVICE_ATTR(revision, S_IRUGO, asd_show_dev_rev, NULL);
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static ssize_t asd_show_dev_bios_build(struct device *dev,
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struct device_attribute *attr,char *buf)
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{
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struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
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return snprintf(buf, PAGE_SIZE, "%d\n", asd_ha->hw_prof.bios.bld);
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}
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static DEVICE_ATTR(bios_build, S_IRUGO, asd_show_dev_bios_build, NULL);
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static ssize_t asd_show_dev_pcba_sn(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
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return snprintf(buf, PAGE_SIZE, "%s\n", asd_ha->hw_prof.pcba_sn);
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}
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static DEVICE_ATTR(pcba_sn, S_IRUGO, asd_show_dev_pcba_sn, NULL);
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#define FLASH_CMD_NONE 0x00
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#define FLASH_CMD_UPDATE 0x01
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#define FLASH_CMD_VERIFY 0x02
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struct flash_command {
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u8 command[8];
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int code;
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};
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static struct flash_command flash_command_table[] =
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{
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{"verify", FLASH_CMD_VERIFY},
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{"update", FLASH_CMD_UPDATE},
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{"", FLASH_CMD_NONE} /* Last entry should be NULL. */
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};
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struct error_bios {
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char *reason;
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int err_code;
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};
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static struct error_bios flash_error_table[] =
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{
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{"Failed to open bios image file", FAIL_OPEN_BIOS_FILE},
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{"PCI ID mismatch", FAIL_CHECK_PCI_ID},
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{"Checksum mismatch", FAIL_CHECK_SUM},
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{"Unknown Error", FAIL_UNKNOWN},
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{"Failed to verify.", FAIL_VERIFY},
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{"Failed to reset flash chip.", FAIL_RESET_FLASH},
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{"Failed to find flash chip type.", FAIL_FIND_FLASH_ID},
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{"Failed to erash flash chip.", FAIL_ERASE_FLASH},
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{"Failed to program flash chip.", FAIL_WRITE_FLASH},
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{"Flash in progress", FLASH_IN_PROGRESS},
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{"Image file size Error", FAIL_FILE_SIZE},
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{"Input parameter error", FAIL_PARAMETERS},
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{"Out of memory", FAIL_OUT_MEMORY},
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{"OK", 0} /* Last entry err_code = 0. */
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};
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static ssize_t asd_store_update_bios(struct device *dev,
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struct device_attribute *attr,
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const char *buf, size_t count)
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{
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struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
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char *cmd_ptr, *filename_ptr;
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struct bios_file_header header, *hdr_ptr;
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int res, i;
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u32 csum = 0;
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int flash_command = FLASH_CMD_NONE;
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int err = 0;
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cmd_ptr = kzalloc(count*2, GFP_KERNEL);
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if (!cmd_ptr) {
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err = FAIL_OUT_MEMORY;
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goto out;
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}
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filename_ptr = cmd_ptr + count;
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res = sscanf(buf, "%s %s", cmd_ptr, filename_ptr);
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if (res != 2) {
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err = FAIL_PARAMETERS;
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goto out1;
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}
|
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for (i = 0; flash_command_table[i].code != FLASH_CMD_NONE; i++) {
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if (!memcmp(flash_command_table[i].command,
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cmd_ptr, strlen(cmd_ptr))) {
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flash_command = flash_command_table[i].code;
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break;
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}
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}
|
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if (flash_command == FLASH_CMD_NONE) {
|
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err = FAIL_PARAMETERS;
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goto out1;
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}
|
|
|
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if (asd_ha->bios_status == FLASH_IN_PROGRESS) {
|
|
err = FLASH_IN_PROGRESS;
|
|
goto out1;
|
|
}
|
|
err = request_firmware(&asd_ha->bios_image,
|
|
filename_ptr,
|
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&asd_ha->pcidev->dev);
|
|
if (err) {
|
|
asd_printk("Failed to load bios image file %s, error %d\n",
|
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filename_ptr, err);
|
|
err = FAIL_OPEN_BIOS_FILE;
|
|
goto out1;
|
|
}
|
|
|
|
hdr_ptr = (struct bios_file_header *)asd_ha->bios_image->data;
|
|
|
|
if ((hdr_ptr->contrl_id.vendor != asd_ha->pcidev->vendor ||
|
|
hdr_ptr->contrl_id.device != asd_ha->pcidev->device) &&
|
|
(hdr_ptr->contrl_id.sub_vendor != asd_ha->pcidev->vendor ||
|
|
hdr_ptr->contrl_id.sub_device != asd_ha->pcidev->device)) {
|
|
|
|
ASD_DPRINTK("The PCI vendor or device id does not match\n");
|
|
ASD_DPRINTK("vendor=%x dev=%x sub_vendor=%x sub_dev=%x"
|
|
" pci vendor=%x pci dev=%x\n",
|
|
hdr_ptr->contrl_id.vendor,
|
|
hdr_ptr->contrl_id.device,
|
|
hdr_ptr->contrl_id.sub_vendor,
|
|
hdr_ptr->contrl_id.sub_device,
|
|
asd_ha->pcidev->vendor,
|
|
asd_ha->pcidev->device);
|
|
err = FAIL_CHECK_PCI_ID;
|
|
goto out2;
|
|
}
|
|
|
|
if (hdr_ptr->filelen != asd_ha->bios_image->size) {
|
|
err = FAIL_FILE_SIZE;
|
|
goto out2;
|
|
}
|
|
|
|
/* calculate checksum */
|
|
for (i = 0; i < hdr_ptr->filelen; i++)
|
|
csum += asd_ha->bios_image->data[i];
|
|
|
|
if ((csum & 0x0000ffff) != hdr_ptr->checksum) {
|
|
ASD_DPRINTK("BIOS file checksum mismatch\n");
|
|
err = FAIL_CHECK_SUM;
|
|
goto out2;
|
|
}
|
|
if (flash_command == FLASH_CMD_UPDATE) {
|
|
asd_ha->bios_status = FLASH_IN_PROGRESS;
|
|
err = asd_write_flash_seg(asd_ha,
|
|
&asd_ha->bios_image->data[sizeof(*hdr_ptr)],
|
|
0, hdr_ptr->filelen-sizeof(*hdr_ptr));
|
|
if (!err)
|
|
err = asd_verify_flash_seg(asd_ha,
|
|
&asd_ha->bios_image->data[sizeof(*hdr_ptr)],
|
|
0, hdr_ptr->filelen-sizeof(*hdr_ptr));
|
|
} else {
|
|
asd_ha->bios_status = FLASH_IN_PROGRESS;
|
|
err = asd_verify_flash_seg(asd_ha,
|
|
&asd_ha->bios_image->data[sizeof(header)],
|
|
0, hdr_ptr->filelen-sizeof(header));
|
|
}
|
|
|
|
out2:
|
|
release_firmware(asd_ha->bios_image);
|
|
out1:
|
|
kfree(cmd_ptr);
|
|
out:
|
|
asd_ha->bios_status = err;
|
|
|
|
if (!err)
|
|
return count;
|
|
else
|
|
return -err;
|
|
}
|
|
|
|
static ssize_t asd_show_update_bios(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
int i;
|
|
struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
|
|
|
|
for (i = 0; flash_error_table[i].err_code != 0; i++) {
|
|
if (flash_error_table[i].err_code == asd_ha->bios_status)
|
|
break;
|
|
}
|
|
if (asd_ha->bios_status != FLASH_IN_PROGRESS)
|
|
asd_ha->bios_status = FLASH_OK;
|
|
|
|
return snprintf(buf, PAGE_SIZE, "status=%x %s\n",
|
|
flash_error_table[i].err_code,
|
|
flash_error_table[i].reason);
|
|
}
|
|
|
|
static DEVICE_ATTR(update_bios, S_IRUGO|S_IWUGO,
|
|
asd_show_update_bios, asd_store_update_bios);
|
|
|
|
static int asd_create_dev_attrs(struct asd_ha_struct *asd_ha)
|
|
{
|
|
int err;
|
|
|
|
err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_revision);
|
|
if (err)
|
|
return err;
|
|
|
|
err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
|
|
if (err)
|
|
goto err_rev;
|
|
|
|
err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
|
|
if (err)
|
|
goto err_biosb;
|
|
err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_update_bios);
|
|
if (err)
|
|
goto err_update_bios;
|
|
|
|
return 0;
|
|
|
|
err_update_bios:
|
|
device_remove_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
|
|
err_biosb:
|
|
device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
|
|
err_rev:
|
|
device_remove_file(&asd_ha->pcidev->dev, &dev_attr_revision);
|
|
return err;
|
|
}
|
|
|
|
static void asd_remove_dev_attrs(struct asd_ha_struct *asd_ha)
|
|
{
|
|
device_remove_file(&asd_ha->pcidev->dev, &dev_attr_revision);
|
|
device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
|
|
device_remove_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
|
|
device_remove_file(&asd_ha->pcidev->dev, &dev_attr_update_bios);
|
|
}
|
|
|
|
/* The first entry, 0, is used for dynamic ids, the rest for devices
|
|
* we know about.
|
|
*/
|
|
static const struct asd_pcidev_struct {
|
|
const char * name;
|
|
int (*setup)(struct asd_ha_struct *asd_ha);
|
|
} asd_pcidev_data[] __devinitconst = {
|
|
/* Id 0 is used for dynamic ids. */
|
|
{ .name = "Adaptec AIC-94xx SAS/SATA Host Adapter",
|
|
.setup = asd_aic9410_setup
|
|
},
|
|
{ .name = "Adaptec AIC-9410W SAS/SATA Host Adapter",
|
|
.setup = asd_aic9410_setup
|
|
},
|
|
{ .name = "Adaptec AIC-9405W SAS/SATA Host Adapter",
|
|
.setup = asd_aic9405_setup
|
|
},
|
|
};
|
|
|
|
static int asd_create_ha_caches(struct asd_ha_struct *asd_ha)
|
|
{
|
|
asd_ha->scb_pool = dma_pool_create(ASD_DRIVER_NAME "_scb_pool",
|
|
&asd_ha->pcidev->dev,
|
|
sizeof(struct scb),
|
|
8, 0);
|
|
if (!asd_ha->scb_pool) {
|
|
asd_printk("couldn't create scb pool\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* asd_free_edbs -- free empty data buffers
|
|
* asd_ha: pointer to host adapter structure
|
|
*/
|
|
static void asd_free_edbs(struct asd_ha_struct *asd_ha)
|
|
{
|
|
struct asd_seq_data *seq = &asd_ha->seq;
|
|
int i;
|
|
|
|
for (i = 0; i < seq->num_edbs; i++)
|
|
asd_free_coherent(asd_ha, seq->edb_arr[i]);
|
|
kfree(seq->edb_arr);
|
|
seq->edb_arr = NULL;
|
|
}
|
|
|
|
static void asd_free_escbs(struct asd_ha_struct *asd_ha)
|
|
{
|
|
struct asd_seq_data *seq = &asd_ha->seq;
|
|
int i;
|
|
|
|
for (i = 0; i < seq->num_escbs; i++) {
|
|
if (!list_empty(&seq->escb_arr[i]->list))
|
|
list_del_init(&seq->escb_arr[i]->list);
|
|
|
|
asd_ascb_free(seq->escb_arr[i]);
|
|
}
|
|
kfree(seq->escb_arr);
|
|
seq->escb_arr = NULL;
|
|
}
|
|
|
|
static void asd_destroy_ha_caches(struct asd_ha_struct *asd_ha)
|
|
{
|
|
int i;
|
|
|
|
if (asd_ha->hw_prof.ddb_ext)
|
|
asd_free_coherent(asd_ha, asd_ha->hw_prof.ddb_ext);
|
|
if (asd_ha->hw_prof.scb_ext)
|
|
asd_free_coherent(asd_ha, asd_ha->hw_prof.scb_ext);
|
|
|
|
if (asd_ha->hw_prof.ddb_bitmap)
|
|
kfree(asd_ha->hw_prof.ddb_bitmap);
|
|
asd_ha->hw_prof.ddb_bitmap = NULL;
|
|
|
|
for (i = 0; i < ASD_MAX_PHYS; i++) {
|
|
struct asd_phy *phy = &asd_ha->phys[i];
|
|
|
|
asd_free_coherent(asd_ha, phy->id_frm_tok);
|
|
}
|
|
if (asd_ha->seq.escb_arr)
|
|
asd_free_escbs(asd_ha);
|
|
if (asd_ha->seq.edb_arr)
|
|
asd_free_edbs(asd_ha);
|
|
if (asd_ha->hw_prof.ue.area) {
|
|
kfree(asd_ha->hw_prof.ue.area);
|
|
asd_ha->hw_prof.ue.area = NULL;
|
|
}
|
|
if (asd_ha->seq.tc_index_array) {
|
|
kfree(asd_ha->seq.tc_index_array);
|
|
kfree(asd_ha->seq.tc_index_bitmap);
|
|
asd_ha->seq.tc_index_array = NULL;
|
|
asd_ha->seq.tc_index_bitmap = NULL;
|
|
}
|
|
if (asd_ha->seq.actual_dl) {
|
|
asd_free_coherent(asd_ha, asd_ha->seq.actual_dl);
|
|
asd_ha->seq.actual_dl = NULL;
|
|
asd_ha->seq.dl = NULL;
|
|
}
|
|
if (asd_ha->seq.next_scb.vaddr) {
|
|
dma_pool_free(asd_ha->scb_pool, asd_ha->seq.next_scb.vaddr,
|
|
asd_ha->seq.next_scb.dma_handle);
|
|
asd_ha->seq.next_scb.vaddr = NULL;
|
|
}
|
|
dma_pool_destroy(asd_ha->scb_pool);
|
|
asd_ha->scb_pool = NULL;
|
|
}
|
|
|
|
struct kmem_cache *asd_dma_token_cache;
|
|
struct kmem_cache *asd_ascb_cache;
|
|
|
|
static int asd_create_global_caches(void)
|
|
{
|
|
if (!asd_dma_token_cache) {
|
|
asd_dma_token_cache
|
|
= kmem_cache_create(ASD_DRIVER_NAME "_dma_token",
|
|
sizeof(struct asd_dma_tok),
|
|
0,
|
|
SLAB_HWCACHE_ALIGN,
|
|
NULL);
|
|
if (!asd_dma_token_cache) {
|
|
asd_printk("couldn't create dma token cache\n");
|
|
return -ENOMEM;
|
|
}
|
|
}
|
|
|
|
if (!asd_ascb_cache) {
|
|
asd_ascb_cache = kmem_cache_create(ASD_DRIVER_NAME "_ascb",
|
|
sizeof(struct asd_ascb),
|
|
0,
|
|
SLAB_HWCACHE_ALIGN,
|
|
NULL);
|
|
if (!asd_ascb_cache) {
|
|
asd_printk("couldn't create ascb cache\n");
|
|
goto Err;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
Err:
|
|
kmem_cache_destroy(asd_dma_token_cache);
|
|
asd_dma_token_cache = NULL;
|
|
return -ENOMEM;
|
|
}
|
|
|
|
static void asd_destroy_global_caches(void)
|
|
{
|
|
if (asd_dma_token_cache)
|
|
kmem_cache_destroy(asd_dma_token_cache);
|
|
asd_dma_token_cache = NULL;
|
|
|
|
if (asd_ascb_cache)
|
|
kmem_cache_destroy(asd_ascb_cache);
|
|
asd_ascb_cache = NULL;
|
|
}
|
|
|
|
static int asd_register_sas_ha(struct asd_ha_struct *asd_ha)
|
|
{
|
|
int i;
|
|
struct asd_sas_phy **sas_phys =
|
|
kmalloc(ASD_MAX_PHYS * sizeof(struct asd_sas_phy), GFP_KERNEL);
|
|
struct asd_sas_port **sas_ports =
|
|
kmalloc(ASD_MAX_PHYS * sizeof(struct asd_sas_port), GFP_KERNEL);
|
|
|
|
if (!sas_phys || !sas_ports) {
|
|
kfree(sas_phys);
|
|
kfree(sas_ports);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
asd_ha->sas_ha.sas_ha_name = (char *) asd_ha->name;
|
|
asd_ha->sas_ha.lldd_module = THIS_MODULE;
|
|
asd_ha->sas_ha.sas_addr = &asd_ha->hw_prof.sas_addr[0];
|
|
|
|
for (i = 0; i < ASD_MAX_PHYS; i++) {
|
|
sas_phys[i] = &asd_ha->phys[i].sas_phy;
|
|
sas_ports[i] = &asd_ha->ports[i];
|
|
}
|
|
|
|
asd_ha->sas_ha.sas_phy = sas_phys;
|
|
asd_ha->sas_ha.sas_port= sas_ports;
|
|
asd_ha->sas_ha.num_phys= ASD_MAX_PHYS;
|
|
|
|
asd_ha->sas_ha.lldd_queue_size = asd_ha->seq.can_queue;
|
|
asd_ha->sas_ha.lldd_max_execute_num = lldd_max_execute_num;
|
|
|
|
return sas_register_ha(&asd_ha->sas_ha);
|
|
}
|
|
|
|
static int asd_unregister_sas_ha(struct asd_ha_struct *asd_ha)
|
|
{
|
|
int err;
|
|
|
|
err = sas_unregister_ha(&asd_ha->sas_ha);
|
|
|
|
sas_remove_host(asd_ha->sas_ha.core.shost);
|
|
scsi_remove_host(asd_ha->sas_ha.core.shost);
|
|
scsi_host_put(asd_ha->sas_ha.core.shost);
|
|
|
|
kfree(asd_ha->sas_ha.sas_phy);
|
|
kfree(asd_ha->sas_ha.sas_port);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int __devinit asd_pci_probe(struct pci_dev *dev,
|
|
const struct pci_device_id *id)
|
|
{
|
|
const struct asd_pcidev_struct *asd_dev;
|
|
unsigned asd_id = (unsigned) id->driver_data;
|
|
struct asd_ha_struct *asd_ha;
|
|
struct Scsi_Host *shost;
|
|
int err;
|
|
|
|
if (asd_id >= ARRAY_SIZE(asd_pcidev_data)) {
|
|
asd_printk("wrong driver_data in PCI table\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
if ((err = pci_enable_device(dev))) {
|
|
asd_printk("couldn't enable device %s\n", pci_name(dev));
|
|
return err;
|
|
}
|
|
|
|
pci_set_master(dev);
|
|
|
|
err = -ENOMEM;
|
|
|
|
shost = scsi_host_alloc(&aic94xx_sht, sizeof(void *));
|
|
if (!shost)
|
|
goto Err;
|
|
|
|
asd_dev = &asd_pcidev_data[asd_id];
|
|
|
|
asd_ha = kzalloc(sizeof(*asd_ha), GFP_KERNEL);
|
|
if (!asd_ha) {
|
|
asd_printk("out of memory\n");
|
|
goto Err_put;
|
|
}
|
|
asd_ha->pcidev = dev;
|
|
asd_ha->sas_ha.dev = &asd_ha->pcidev->dev;
|
|
asd_ha->sas_ha.lldd_ha = asd_ha;
|
|
|
|
asd_ha->bios_status = FLASH_OK;
|
|
asd_ha->name = asd_dev->name;
|
|
asd_printk("found %s, device %s\n", asd_ha->name, pci_name(dev));
|
|
|
|
SHOST_TO_SAS_HA(shost) = &asd_ha->sas_ha;
|
|
asd_ha->sas_ha.core.shost = shost;
|
|
shost->transportt = aic94xx_transport_template;
|
|
shost->max_id = ~0;
|
|
shost->max_lun = ~0;
|
|
shost->max_cmd_len = 16;
|
|
|
|
err = scsi_add_host(shost, &dev->dev);
|
|
if (err)
|
|
goto Err_free;
|
|
|
|
err = asd_dev->setup(asd_ha);
|
|
if (err)
|
|
goto Err_remove;
|
|
|
|
err = -ENODEV;
|
|
if (!pci_set_dma_mask(dev, DMA_BIT_MASK(64))
|
|
&& !pci_set_consistent_dma_mask(dev, DMA_BIT_MASK(64)))
|
|
;
|
|
else if (!pci_set_dma_mask(dev, DMA_BIT_MASK(32))
|
|
&& !pci_set_consistent_dma_mask(dev, DMA_BIT_MASK(32)))
|
|
;
|
|
else {
|
|
asd_printk("no suitable DMA mask for %s\n", pci_name(dev));
|
|
goto Err_remove;
|
|
}
|
|
|
|
pci_set_drvdata(dev, asd_ha);
|
|
|
|
err = asd_map_ha(asd_ha);
|
|
if (err)
|
|
goto Err_remove;
|
|
|
|
err = asd_create_ha_caches(asd_ha);
|
|
if (err)
|
|
goto Err_unmap;
|
|
|
|
err = asd_init_hw(asd_ha);
|
|
if (err)
|
|
goto Err_free_cache;
|
|
|
|
asd_printk("device %s: SAS addr %llx, PCBA SN %s, %d phys, %d enabled "
|
|
"phys, flash %s, BIOS %s%d\n",
|
|
pci_name(dev), SAS_ADDR(asd_ha->hw_prof.sas_addr),
|
|
asd_ha->hw_prof.pcba_sn, asd_ha->hw_prof.max_phys,
|
|
asd_ha->hw_prof.num_phys,
|
|
asd_ha->hw_prof.flash.present ? "present" : "not present",
|
|
asd_ha->hw_prof.bios.present ? "build " : "not present",
|
|
asd_ha->hw_prof.bios.bld);
|
|
|
|
shost->can_queue = asd_ha->seq.can_queue;
|
|
|
|
if (use_msi)
|
|
pci_enable_msi(asd_ha->pcidev);
|
|
|
|
err = request_irq(asd_ha->pcidev->irq, asd_hw_isr, IRQF_SHARED,
|
|
ASD_DRIVER_NAME, asd_ha);
|
|
if (err) {
|
|
asd_printk("couldn't get irq %d for %s\n",
|
|
asd_ha->pcidev->irq, pci_name(asd_ha->pcidev));
|
|
goto Err_irq;
|
|
}
|
|
asd_enable_ints(asd_ha);
|
|
|
|
err = asd_init_post_escbs(asd_ha);
|
|
if (err) {
|
|
asd_printk("couldn't post escbs for %s\n",
|
|
pci_name(asd_ha->pcidev));
|
|
goto Err_escbs;
|
|
}
|
|
ASD_DPRINTK("escbs posted\n");
|
|
|
|
err = asd_create_dev_attrs(asd_ha);
|
|
if (err)
|
|
goto Err_dev_attrs;
|
|
|
|
err = asd_register_sas_ha(asd_ha);
|
|
if (err)
|
|
goto Err_reg_sas;
|
|
|
|
scsi_scan_host(shost);
|
|
|
|
return 0;
|
|
|
|
Err_reg_sas:
|
|
asd_remove_dev_attrs(asd_ha);
|
|
Err_dev_attrs:
|
|
Err_escbs:
|
|
asd_disable_ints(asd_ha);
|
|
free_irq(dev->irq, asd_ha);
|
|
Err_irq:
|
|
if (use_msi)
|
|
pci_disable_msi(dev);
|
|
asd_chip_hardrst(asd_ha);
|
|
Err_free_cache:
|
|
asd_destroy_ha_caches(asd_ha);
|
|
Err_unmap:
|
|
asd_unmap_ha(asd_ha);
|
|
Err_remove:
|
|
scsi_remove_host(shost);
|
|
Err_free:
|
|
kfree(asd_ha);
|
|
Err_put:
|
|
scsi_host_put(shost);
|
|
Err:
|
|
pci_disable_device(dev);
|
|
return err;
|
|
}
|
|
|
|
static void asd_free_queues(struct asd_ha_struct *asd_ha)
|
|
{
|
|
unsigned long flags;
|
|
LIST_HEAD(pending);
|
|
struct list_head *n, *pos;
|
|
|
|
spin_lock_irqsave(&asd_ha->seq.pend_q_lock, flags);
|
|
asd_ha->seq.pending = 0;
|
|
list_splice_init(&asd_ha->seq.pend_q, &pending);
|
|
spin_unlock_irqrestore(&asd_ha->seq.pend_q_lock, flags);
|
|
|
|
if (!list_empty(&pending))
|
|
ASD_DPRINTK("Uh-oh! Pending is not empty!\n");
|
|
|
|
list_for_each_safe(pos, n, &pending) {
|
|
struct asd_ascb *ascb = list_entry(pos, struct asd_ascb, list);
|
|
/*
|
|
* Delete unexpired ascb timers. This may happen if we issue
|
|
* a CONTROL PHY scb to an adapter and rmmod before the scb
|
|
* times out. Apparently we don't wait for the CONTROL PHY
|
|
* to complete, so it doesn't matter if we kill the timer.
|
|
*/
|
|
del_timer_sync(&ascb->timer);
|
|
WARN_ON(ascb->scb->header.opcode != CONTROL_PHY);
|
|
|
|
list_del_init(pos);
|
|
ASD_DPRINTK("freeing from pending\n");
|
|
asd_ascb_free(ascb);
|
|
}
|
|
}
|
|
|
|
static void asd_turn_off_leds(struct asd_ha_struct *asd_ha)
|
|
{
|
|
u8 phy_mask = asd_ha->hw_prof.enabled_phys;
|
|
u8 i;
|
|
|
|
for_each_phy(phy_mask, phy_mask, i) {
|
|
asd_turn_led(asd_ha, i, 0);
|
|
asd_control_led(asd_ha, i, 0);
|
|
}
|
|
}
|
|
|
|
static void __devexit asd_pci_remove(struct pci_dev *dev)
|
|
{
|
|
struct asd_ha_struct *asd_ha = pci_get_drvdata(dev);
|
|
|
|
if (!asd_ha)
|
|
return;
|
|
|
|
asd_unregister_sas_ha(asd_ha);
|
|
|
|
asd_disable_ints(asd_ha);
|
|
|
|
asd_remove_dev_attrs(asd_ha);
|
|
|
|
/* XXX more here as needed */
|
|
|
|
free_irq(dev->irq, asd_ha);
|
|
if (use_msi)
|
|
pci_disable_msi(asd_ha->pcidev);
|
|
asd_turn_off_leds(asd_ha);
|
|
asd_chip_hardrst(asd_ha);
|
|
asd_free_queues(asd_ha);
|
|
asd_destroy_ha_caches(asd_ha);
|
|
asd_unmap_ha(asd_ha);
|
|
kfree(asd_ha);
|
|
pci_disable_device(dev);
|
|
return;
|
|
}
|
|
|
|
static void asd_scan_start(struct Scsi_Host *shost)
|
|
{
|
|
struct asd_ha_struct *asd_ha;
|
|
int err;
|
|
|
|
asd_ha = SHOST_TO_SAS_HA(shost)->lldd_ha;
|
|
err = asd_enable_phys(asd_ha, asd_ha->hw_prof.enabled_phys);
|
|
if (err)
|
|
asd_printk("Couldn't enable phys, err:%d\n", err);
|
|
}
|
|
|
|
static int asd_scan_finished(struct Scsi_Host *shost, unsigned long time)
|
|
{
|
|
/* give the phy enabling interrupt event time to come in (1s
|
|
* is empirically about all it takes) */
|
|
if (time < HZ)
|
|
return 0;
|
|
/* Wait for discovery to finish */
|
|
scsi_flush_work(shost);
|
|
return 1;
|
|
}
|
|
|
|
static ssize_t asd_version_show(struct device_driver *driver, char *buf)
|
|
{
|
|
return snprintf(buf, PAGE_SIZE, "%s\n", ASD_DRIVER_VERSION);
|
|
}
|
|
static DRIVER_ATTR(version, S_IRUGO, asd_version_show, NULL);
|
|
|
|
static int asd_create_driver_attrs(struct device_driver *driver)
|
|
{
|
|
return driver_create_file(driver, &driver_attr_version);
|
|
}
|
|
|
|
static void asd_remove_driver_attrs(struct device_driver *driver)
|
|
{
|
|
driver_remove_file(driver, &driver_attr_version);
|
|
}
|
|
|
|
static struct sas_domain_function_template aic94xx_transport_functions = {
|
|
.lldd_dev_found = asd_dev_found,
|
|
.lldd_dev_gone = asd_dev_gone,
|
|
|
|
.lldd_execute_task = asd_execute_task,
|
|
|
|
.lldd_abort_task = asd_abort_task,
|
|
.lldd_abort_task_set = asd_abort_task_set,
|
|
.lldd_clear_aca = asd_clear_aca,
|
|
.lldd_clear_task_set = asd_clear_task_set,
|
|
.lldd_I_T_nexus_reset = asd_I_T_nexus_reset,
|
|
.lldd_lu_reset = asd_lu_reset,
|
|
.lldd_query_task = asd_query_task,
|
|
|
|
.lldd_clear_nexus_port = asd_clear_nexus_port,
|
|
.lldd_clear_nexus_ha = asd_clear_nexus_ha,
|
|
|
|
.lldd_control_phy = asd_control_phy,
|
|
};
|
|
|
|
static const struct pci_device_id aic94xx_pci_table[] __devinitdata = {
|
|
{PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x410),0, 0, 1},
|
|
{PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x412),0, 0, 1},
|
|
{PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x416),0, 0, 1},
|
|
{PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x41E),0, 0, 1},
|
|
{PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x41F),0, 0, 1},
|
|
{PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x430),0, 0, 2},
|
|
{PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x432),0, 0, 2},
|
|
{PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x43E),0, 0, 2},
|
|
{PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x43F),0, 0, 2},
|
|
{}
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(pci, aic94xx_pci_table);
|
|
|
|
static struct pci_driver aic94xx_pci_driver = {
|
|
.name = ASD_DRIVER_NAME,
|
|
.id_table = aic94xx_pci_table,
|
|
.probe = asd_pci_probe,
|
|
.remove = __devexit_p(asd_pci_remove),
|
|
};
|
|
|
|
static int __init aic94xx_init(void)
|
|
{
|
|
int err;
|
|
|
|
|
|
asd_printk("%s version %s loaded\n", ASD_DRIVER_DESCRIPTION,
|
|
ASD_DRIVER_VERSION);
|
|
|
|
err = asd_create_global_caches();
|
|
if (err)
|
|
return err;
|
|
|
|
aic94xx_transport_template =
|
|
sas_domain_attach_transport(&aic94xx_transport_functions);
|
|
if (!aic94xx_transport_template)
|
|
goto out_destroy_caches;
|
|
|
|
err = pci_register_driver(&aic94xx_pci_driver);
|
|
if (err)
|
|
goto out_release_transport;
|
|
|
|
err = asd_create_driver_attrs(&aic94xx_pci_driver.driver);
|
|
if (err)
|
|
goto out_unregister_pcidrv;
|
|
|
|
return err;
|
|
|
|
out_unregister_pcidrv:
|
|
pci_unregister_driver(&aic94xx_pci_driver);
|
|
out_release_transport:
|
|
sas_release_transport(aic94xx_transport_template);
|
|
out_destroy_caches:
|
|
asd_destroy_global_caches();
|
|
|
|
return err;
|
|
}
|
|
|
|
static void __exit aic94xx_exit(void)
|
|
{
|
|
asd_remove_driver_attrs(&aic94xx_pci_driver.driver);
|
|
pci_unregister_driver(&aic94xx_pci_driver);
|
|
sas_release_transport(aic94xx_transport_template);
|
|
asd_release_firmware();
|
|
asd_destroy_global_caches();
|
|
asd_printk("%s version %s unloaded\n", ASD_DRIVER_DESCRIPTION,
|
|
ASD_DRIVER_VERSION);
|
|
}
|
|
|
|
module_init(aic94xx_init);
|
|
module_exit(aic94xx_exit);
|
|
|
|
MODULE_AUTHOR("Luben Tuikov <luben_tuikov@adaptec.com>");
|
|
MODULE_DESCRIPTION(ASD_DRIVER_DESCRIPTION);
|
|
MODULE_LICENSE("GPL v2");
|
|
MODULE_VERSION(ASD_DRIVER_VERSION);
|