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Commit 7d6322b4 authored by Linus Torvalds's avatar Linus Torvalds
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Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-for-linus-2.6

parents d6b9acc0 51c928c3
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Showing with 4859 additions and 310 deletions
drivers/scsi/3w-9xxx.c
View file @ 7d6322b4
......@@ -60,6 +60,7 @@
Remove un-needed eh_abort handler.
Add support for embedded firmware error strings.
2.26.02.003 - Correctly handle single sgl's with use_sg=1.
2.26.02.004 - Add support for 9550SX controllers.
*/
#include <linux/module.h>
......@@ -82,7 +83,7 @@
#include "3w-9xxx.h"
/* Globals */
#define TW_DRIVER_VERSION "2.26.02.003"
#define TW_DRIVER_VERSION "2.26.02.004"
static TW_Device_Extension *twa_device_extension_list[TW_MAX_SLOT];
static unsigned int twa_device_extension_count;
static int twa_major = -1;
......@@ -892,11 +893,6 @@ static int twa_decode_bits(TW_Device_Extension *tw_dev, u32 status_reg_value)
writel(TW_CONTROL_CLEAR_QUEUE_ERROR, TW_CONTROL_REG_ADDR(tw_dev));
}
if (status_reg_value & TW_STATUS_SBUF_WRITE_ERROR) {
TW_PRINTK(tw_dev->host, TW_DRIVER, 0xf, "SBUF Write Error: clearing");
writel(TW_CONTROL_CLEAR_SBUF_WRITE_ERROR, TW_CONTROL_REG_ADDR(tw_dev));
}
if (status_reg_value & TW_STATUS_MICROCONTROLLER_ERROR) {
if (tw_dev->reset_print == 0) {
TW_PRINTK(tw_dev->host, TW_DRIVER, 0x10, "Microcontroller Error: clearing");
......@@ -930,6 +926,36 @@ static int twa_empty_response_queue(TW_Device_Extension *tw_dev)
return retval;
} /* End twa_empty_response_queue() */
/* This function will clear the pchip/response queue on 9550SX */
static int twa_empty_response_queue_large(TW_Device_Extension *tw_dev)
{
u32 status_reg_value, response_que_value;
int count = 0, retval = 1;
if (tw_dev->tw_pci_dev->device == PCI_DEVICE_ID_3WARE_9550SX) {
status_reg_value = readl(TW_STATUS_REG_ADDR(tw_dev));
while (((status_reg_value & TW_STATUS_RESPONSE_QUEUE_EMPTY) == 0) && (count < TW_MAX_RESPONSE_DRAIN)) {
response_que_value = readl(TW_RESPONSE_QUEUE_REG_ADDR_LARGE(tw_dev));
if ((response_que_value & TW_9550SX_DRAIN_COMPLETED) == TW_9550SX_DRAIN_COMPLETED) {
/* P-chip settle time */
msleep(500);
retval = 0;
goto out;
}
status_reg_value = readl(TW_STATUS_REG_ADDR(tw_dev));
count++;
}
if (count == TW_MAX_RESPONSE_DRAIN)
goto out;
retval = 0;
} else
retval = 0;
out:
return retval;
} /* End twa_empty_response_queue_large() */
/* This function passes sense keys from firmware to scsi layer */
static int twa_fill_sense(TW_Device_Extension *tw_dev, int request_id, int copy_sense, int print_host)
{
......@@ -1613,8 +1639,16 @@ static int twa_reset_sequence(TW_Device_Extension *tw_dev, int soft_reset)
int tries = 0, retval = 1, flashed = 0, do_soft_reset = soft_reset;
while (tries < TW_MAX_RESET_TRIES) {
if (do_soft_reset)
if (do_soft_reset) {
TW_SOFT_RESET(tw_dev);
/* Clear pchip/response queue on 9550SX */
if (twa_empty_response_queue_large(tw_dev)) {
TW_PRINTK(tw_dev->host, TW_DRIVER, 0x36, "Response queue (large) empty failed during reset sequence");
do_soft_reset = 1;
tries++;
continue;
}
}
/* Make sure controller is in a good state */
if (twa_poll_status(tw_dev, TW_STATUS_MICROCONTROLLER_READY | (do_soft_reset == 1 ? TW_STATUS_ATTENTION_INTERRUPT : 0), 60)) {
......@@ -2034,7 +2068,10 @@ static int __devinit twa_probe(struct pci_dev *pdev, const struct pci_device_id
goto out_free_device_extension;
}
if (pdev->device == PCI_DEVICE_ID_3WARE_9000)
mem_addr = pci_resource_start(pdev, 1);
else
mem_addr = pci_resource_start(pdev, 2);
/* Save base address */
tw_dev->base_addr = ioremap(mem_addr, PAGE_SIZE);
......@@ -2148,6 +2185,8 @@ static void twa_remove(struct pci_dev *pdev)
static struct pci_device_id twa_pci_tbl[] __devinitdata = {
{ PCI_VENDOR_ID_3WARE, PCI_DEVICE_ID_3WARE_9000,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{ PCI_VENDOR_ID_3WARE, PCI_DEVICE_ID_3WARE_9550SX,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{ }
};
MODULE_DEVICE_TABLE(pci, twa_pci_tbl);
......
drivers/scsi/3w-9xxx.h
View file @ 7d6322b4
......@@ -267,7 +267,6 @@ static twa_message_type twa_error_table[] = {
#define TW_CONTROL_CLEAR_PARITY_ERROR 0x00800000
#define TW_CONTROL_CLEAR_QUEUE_ERROR 0x00400000
#define TW_CONTROL_CLEAR_PCI_ABORT 0x00100000
#define TW_CONTROL_CLEAR_SBUF_WRITE_ERROR 0x00000008
/* Status register bit definitions */
#define TW_STATUS_MAJOR_VERSION_MASK 0xF0000000
......@@ -285,9 +284,8 @@ static twa_message_type twa_error_table[] = {
#define TW_STATUS_MICROCONTROLLER_READY 0x00002000
#define TW_STATUS_COMMAND_QUEUE_EMPTY 0x00001000
#define TW_STATUS_EXPECTED_BITS 0x00002000
#define TW_STATUS_UNEXPECTED_BITS 0x00F00008
#define TW_STATUS_SBUF_WRITE_ERROR 0x00000008
#define TW_STATUS_VALID_INTERRUPT 0x00DF0008
#define TW_STATUS_UNEXPECTED_BITS 0x00F00000
#define TW_STATUS_VALID_INTERRUPT 0x00DF0000
/* RESPONSE QUEUE BIT DEFINITIONS */
#define TW_RESPONSE_ID_MASK 0x00000FF0
......@@ -324,9 +322,9 @@ static twa_message_type twa_error_table[] = {
/* Compatibility defines */
#define TW_9000_ARCH_ID 0x5
#define TW_CURRENT_DRIVER_SRL 28
#define TW_CURRENT_DRIVER_BUILD 9
#define TW_CURRENT_DRIVER_BRANCH 4
#define TW_CURRENT_DRIVER_SRL 30
#define TW_CURRENT_DRIVER_BUILD 80
#define TW_CURRENT_DRIVER_BRANCH 0
/* Phase defines */
#define TW_PHASE_INITIAL 0
......@@ -334,6 +332,7 @@ static twa_message_type twa_error_table[] = {
#define TW_PHASE_SGLIST 2
/* Misc defines */
#define TW_9550SX_DRAIN_COMPLETED 0xFFFF
#define TW_SECTOR_SIZE 512
#define TW_ALIGNMENT_9000 4 /* 4 bytes */
#define TW_ALIGNMENT_9000_SGL 0x3
......@@ -417,6 +416,9 @@ static twa_message_type twa_error_table[] = {
#ifndef PCI_DEVICE_ID_3WARE_9000
#define PCI_DEVICE_ID_3WARE_9000 0x1002
#endif
#ifndef PCI_DEVICE_ID_3WARE_9550SX
#define PCI_DEVICE_ID_3WARE_9550SX 0x1003
#endif
/* Bitmask macros to eliminate bitfields */
......@@ -443,6 +445,7 @@ static twa_message_type twa_error_table[] = {
#define TW_STATUS_REG_ADDR(x) ((unsigned char __iomem *)x->base_addr + 0x4)
#define TW_COMMAND_QUEUE_REG_ADDR(x) (sizeof(dma_addr_t) > 4 ? ((unsigned char __iomem *)x->base_addr + 0x20) : ((unsigned char __iomem *)x->base_addr + 0x8))
#define TW_RESPONSE_QUEUE_REG_ADDR(x) ((unsigned char __iomem *)x->base_addr + 0xC)
#define TW_RESPONSE_QUEUE_REG_ADDR_LARGE(x) ((unsigned char __iomem *)x->base_addr + 0x30)
#define TW_CLEAR_ALL_INTERRUPTS(x) (writel(TW_STATUS_VALID_INTERRUPT, TW_CONTROL_REG_ADDR(x)))
#define TW_CLEAR_ATTENTION_INTERRUPT(x) (writel(TW_CONTROL_CLEAR_ATTENTION_INTERRUPT, TW_CONTROL_REG_ADDR(x)))
#define TW_CLEAR_HOST_INTERRUPT(x) (writel(TW_CONTROL_CLEAR_HOST_INTERRUPT, TW_CONTROL_REG_ADDR(x)))
......
drivers/scsi/Makefile
View file @ 7d6322b4
......@@ -99,6 +99,7 @@ obj-$(CONFIG_SCSI_DC395x) += dc395x.o
obj-$(CONFIG_SCSI_DC390T) += tmscsim.o
obj-$(CONFIG_MEGARAID_LEGACY) += megaraid.o
obj-$(CONFIG_MEGARAID_NEWGEN) += megaraid/
obj-$(CONFIG_MEGARAID_SAS) += megaraid/
obj-$(CONFIG_SCSI_ACARD) += atp870u.o
obj-$(CONFIG_SCSI_SUNESP) += esp.o
obj-$(CONFIG_SCSI_GDTH) += gdth.o
......
drivers/scsi/aacraid/aachba.c
View file @ 7d6322b4
......@@ -313,18 +313,37 @@ int aac_get_containers(struct aac_dev *dev)
}
dresp = (struct aac_mount *)fib_data(fibptr);
if ((le32_to_cpu(dresp->status) == ST_OK) &&
(le32_to_cpu(dresp->mnt[0].vol) == CT_NONE)) {
dinfo->command = cpu_to_le32(VM_NameServe64);
dinfo->count = cpu_to_le32(index);
dinfo->type = cpu_to_le32(FT_FILESYS);
if (fib_send(ContainerCommand,
fibptr,
sizeof(struct aac_query_mount),
FsaNormal,
1, 1,
NULL, NULL) < 0)
continue;
} else
dresp->mnt[0].capacityhigh = 0;
dprintk ((KERN_DEBUG
"VM_NameServe cid=%d status=%d vol=%d state=%d cap=%u\n",
"VM_NameServe cid=%d status=%d vol=%d state=%d cap=%llu\n",
(int)index, (int)le32_to_cpu(dresp->status),
(int)le32_to_cpu(dresp->mnt[0].vol),
(int)le32_to_cpu(dresp->mnt[0].state),
(unsigned)le32_to_cpu(dresp->mnt[0].capacity)));
((u64)le32_to_cpu(dresp->mnt[0].capacity)) +
(((u64)le32_to_cpu(dresp->mnt[0].capacityhigh)) << 32)));
if ((le32_to_cpu(dresp->status) == ST_OK) &&
(le32_to_cpu(dresp->mnt[0].vol) != CT_NONE) &&
(le32_to_cpu(dresp->mnt[0].state) != FSCS_HIDDEN)) {
fsa_dev_ptr[index].valid = 1;
fsa_dev_ptr[index].type = le32_to_cpu(dresp->mnt[0].vol);
fsa_dev_ptr[index].size = le32_to_cpu(dresp->mnt[0].capacity);
fsa_dev_ptr[index].size
= ((u64)le32_to_cpu(dresp->mnt[0].capacity)) +
(((u64)le32_to_cpu(dresp->mnt[0].capacityhigh)) << 32);
if (le32_to_cpu(dresp->mnt[0].state) & FSCS_READONLY)
fsa_dev_ptr[index].ro = 1;
}
......@@ -460,7 +479,7 @@ static int aac_get_container_name(struct scsi_cmnd * scsicmd, int cid)
* is updated in the struct fsa_dev_info structure rather than returned.
*/
static int probe_container(struct aac_dev *dev, int cid)
int probe_container(struct aac_dev *dev, int cid)
{
struct fsa_dev_info *fsa_dev_ptr;
int status;
......@@ -496,12 +515,30 @@ static int probe_container(struct aac_dev *dev, int cid)
dresp = (struct aac_mount *) fib_data(fibptr);
if ((le32_to_cpu(dresp->status) == ST_OK) &&
(le32_to_cpu(dresp->mnt[0].vol) == CT_NONE)) {
dinfo->command = cpu_to_le32(VM_NameServe64);
dinfo->count = cpu_to_le32(cid);
dinfo->type = cpu_to_le32(FT_FILESYS);
if (fib_send(ContainerCommand,
fibptr,
sizeof(struct aac_query_mount),
FsaNormal,
1, 1,
NULL, NULL) < 0)
goto error;
} else
dresp->mnt[0].capacityhigh = 0;
if ((le32_to_cpu(dresp->status) == ST_OK) &&
(le32_to_cpu(dresp->mnt[0].vol) != CT_NONE) &&
(le32_to_cpu(dresp->mnt[0].state) != FSCS_HIDDEN)) {
fsa_dev_ptr[cid].valid = 1;
fsa_dev_ptr[cid].type = le32_to_cpu(dresp->mnt[0].vol);
fsa_dev_ptr[cid].size = le32_to_cpu(dresp->mnt[0].capacity);
fsa_dev_ptr[cid].size
= ((u64)le32_to_cpu(dresp->mnt[0].capacity)) +
(((u64)le32_to_cpu(dresp->mnt[0].capacityhigh)) << 32);
if (le32_to_cpu(dresp->mnt[0].state) & FSCS_READONLY)
fsa_dev_ptr[cid].ro = 1;
}
......@@ -655,7 +692,7 @@ int aac_get_adapter_info(struct aac_dev* dev)
fibptr,
sizeof(*info),
FsaNormal,
1, 1,
-1, 1, /* First `interrupt' command uses special wait */
NULL,
NULL);
......@@ -806,8 +843,8 @@ int aac_get_adapter_info(struct aac_dev* dev)
if (!(dev->raw_io_interface)) {
dev->scsi_host_ptr->sg_tablesize = (dev->max_fib_size -
sizeof(struct aac_fibhdr) -
sizeof(struct aac_write) + sizeof(struct sgmap)) /
sizeof(struct sgmap);
sizeof(struct aac_write) + sizeof(struct sgentry)) /
sizeof(struct sgentry);
if (dev->dac_support) {
/*
* 38 scatter gather elements
......@@ -816,8 +853,8 @@ int aac_get_adapter_info(struct aac_dev* dev)
(dev->max_fib_size -
sizeof(struct aac_fibhdr) -
sizeof(struct aac_write64) +
sizeof(struct sgmap64)) /
sizeof(struct sgmap64);
sizeof(struct sgentry64)) /
sizeof(struct sgentry64);
}
dev->scsi_host_ptr->max_sectors = AAC_MAX_32BIT_SGBCOUNT;
if(!(dev->adapter_info.options & AAC_OPT_NEW_COMM)) {
......@@ -854,7 +891,40 @@ static void io_callback(void *context, struct fib * fibptr)
dev = (struct aac_dev *)scsicmd->device->host->hostdata;
cid = ID_LUN_TO_CONTAINER(scsicmd->device->id, scsicmd->device->lun);
dprintk((KERN_DEBUG "io_callback[cpu %d]: lba = %u, t = %ld.\n", smp_processor_id(), ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3], jiffies));
if (nblank(dprintk(x))) {
u64 lba;
switch (scsicmd->cmnd[0]) {
case WRITE_6:
case READ_6:
lba = ((scsicmd->cmnd[1] & 0x1F) << 16) |
(scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
break;
case WRITE_16:
case READ_16:
lba = ((u64)scsicmd->cmnd[2] << 56) |
((u64)scsicmd->cmnd[3] << 48) |
((u64)scsicmd->cmnd[4] << 40) |
((u64)scsicmd->cmnd[5] << 32) |
((u64)scsicmd->cmnd[6] << 24) |
(scsicmd->cmnd[7] << 16) |
(scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
break;
case WRITE_12:
case READ_12:
lba = ((u64)scsicmd->cmnd[2] << 24) |
(scsicmd->cmnd[3] << 16) |
(scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
break;
default:
lba = ((u64)scsicmd->cmnd[2] << 24) |
(scsicmd->cmnd[3] << 16) |
(scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
break;
}
printk(KERN_DEBUG
"io_callback[cpu %d]: lba = %llu, t = %ld.\n",
smp_processor_id(), (unsigned long long)lba, jiffies);
}
if (fibptr == NULL)
BUG();
......@@ -895,7 +965,7 @@ static void io_callback(void *context, struct fib * fibptr)
static int aac_read(struct scsi_cmnd * scsicmd, int cid)
{
u32 lba;
u64 lba;
u32 count;
int status;
......@@ -907,23 +977,69 @@ static int aac_read(struct scsi_cmnd * scsicmd, int cid)
/*
* Get block address and transfer length
*/
if (scsicmd->cmnd[0] == READ_6) /* 6 byte command */
{
switch (scsicmd->cmnd[0]) {
case READ_6:
dprintk((KERN_DEBUG "aachba: received a read(6) command on id %d.\n", cid));
lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
lba = ((scsicmd->cmnd[1] & 0x1F) << 16) |
(scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
count = scsicmd->cmnd[4];
if (count == 0)
count = 256;
} else {
break;
case READ_16:
dprintk((KERN_DEBUG "aachba: received a read(16) command on id %d.\n", cid));
lba = ((u64)scsicmd->cmnd[2] << 56) |
((u64)scsicmd->cmnd[3] << 48) |
((u64)scsicmd->cmnd[4] << 40) |
((u64)scsicmd->cmnd[5] << 32) |
((u64)scsicmd->cmnd[6] << 24) |
(scsicmd->cmnd[7] << 16) |
(scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
count = (scsicmd->cmnd[10] << 24) |
(scsicmd->cmnd[11] << 16) |
(scsicmd->cmnd[12] << 8) | scsicmd->cmnd[13];
break;
case READ_12:
dprintk((KERN_DEBUG "aachba: received a read(12) command on id %d.\n", cid));
lba = ((u64)scsicmd->cmnd[2] << 24) |
(scsicmd->cmnd[3] << 16) |
(scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
count = (scsicmd->cmnd[6] << 24) |
(scsicmd->cmnd[7] << 16) |
(scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
break;
default:
dprintk((KERN_DEBUG "aachba: received a read(10) command on id %d.\n", cid));
lba = (scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
lba = ((u64)scsicmd->cmnd[2] << 24) |
(scsicmd->cmnd[3] << 16) |
(scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
break;
}
dprintk((KERN_DEBUG "aac_read[cpu %d]: lba = %u, t = %ld.\n",
dprintk((KERN_DEBUG "aac_read[cpu %d]: lba = %llu, t = %ld.\n",
smp_processor_id(), (unsigned long long)lba, jiffies));
if ((!(dev->raw_io_interface) || !(dev->raw_io_64)) &&
(lba & 0xffffffff00000000LL)) {
dprintk((KERN_DEBUG "aac_read: Illegal lba\n"));
scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 |
SAM_STAT_CHECK_CONDITION;
set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
HARDWARE_ERROR,
SENCODE_INTERNAL_TARGET_FAILURE,
ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
0, 0);
memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
(sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
? sizeof(scsicmd->sense_buffer)
: sizeof(dev->fsa_dev[cid].sense_data));
scsicmd->scsi_done(scsicmd);
return 0;
}
/*
* Alocate and initialize a Fib
*/
......@@ -936,8 +1052,8 @@ static int aac_read(struct scsi_cmnd * scsicmd, int cid)
if (dev->raw_io_interface) {
struct aac_raw_io *readcmd;
readcmd = (struct aac_raw_io *) fib_data(cmd_fibcontext);
readcmd->block[0] = cpu_to_le32(lba);
readcmd->block[1] = 0;
readcmd->block[0] = cpu_to_le32((u32)(lba&0xffffffff));
readcmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
readcmd->count = cpu_to_le32(count<<9);
readcmd->cid = cpu_to_le16(cid);
readcmd->flags = cpu_to_le16(1);
......@@ -964,7 +1080,7 @@ static int aac_read(struct scsi_cmnd * scsicmd, int cid)
readcmd->command = cpu_to_le32(VM_CtHostRead64);
readcmd->cid = cpu_to_le16(cid);
readcmd->sector_count = cpu_to_le16(count);
readcmd->block = cpu_to_le32(lba);
readcmd->block = cpu_to_le32((u32)(lba&0xffffffff));
readcmd->pad = 0;
readcmd->flags = 0;
......@@ -989,7 +1105,7 @@ static int aac_read(struct scsi_cmnd * scsicmd, int cid)
readcmd = (struct aac_read *) fib_data(cmd_fibcontext);
readcmd->command = cpu_to_le32(VM_CtBlockRead);
readcmd->cid = cpu_to_le32(cid);
readcmd->block = cpu_to_le32(lba);
readcmd->block = cpu_to_le32((u32)(lba&0xffffffff));
readcmd->count = cpu_to_le32(count * 512);
aac_build_sg(scsicmd, &readcmd->sg);
......@@ -1031,7 +1147,7 @@ static int aac_read(struct scsi_cmnd * scsicmd, int cid)
static int aac_write(struct scsi_cmnd * scsicmd, int cid)
{
u32 lba;
u64 lba;
u32 count;
int status;
u16 fibsize;
......@@ -1048,13 +1164,48 @@ static int aac_write(struct scsi_cmnd * scsicmd, int cid)
count = scsicmd->cmnd[4];
if (count == 0)
count = 256;
} else if (scsicmd->cmnd[0] == WRITE_16) { /* 16 byte command */
dprintk((KERN_DEBUG "aachba: received a write(16) command on id %d.\n", cid));
lba = ((u64)scsicmd->cmnd[2] << 56) |
((u64)scsicmd->cmnd[3] << 48) |
((u64)scsicmd->cmnd[4] << 40) |
((u64)scsicmd->cmnd[5] << 32) |
((u64)scsicmd->cmnd[6] << 24) |
(scsicmd->cmnd[7] << 16) |
(scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
count = (scsicmd->cmnd[10] << 24) | (scsicmd->cmnd[11] << 16) |
(scsicmd->cmnd[12] << 8) | scsicmd->cmnd[13];
} else if (scsicmd->cmnd[0] == WRITE_12) { /* 12 byte command */
dprintk((KERN_DEBUG "aachba: received a write(12) command on id %d.\n", cid));
lba = ((u64)scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16)
| (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
count = (scsicmd->cmnd[6] << 24) | (scsicmd->cmnd[7] << 16)
| (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
} else {
dprintk((KERN_DEBUG "aachba: received a write(10) command on id %d.\n", cid));
lba = (scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
lba = ((u64)scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
}
dprintk((KERN_DEBUG "aac_write[cpu %d]: lba = %u, t = %ld.\n",
dprintk((KERN_DEBUG "aac_write[cpu %d]: lba = %llu, t = %ld.\n",
smp_processor_id(), (unsigned long long)lba, jiffies));
if ((!(dev->raw_io_interface) || !(dev->raw_io_64))
&& (lba & 0xffffffff00000000LL)) {
dprintk((KERN_DEBUG "aac_write: Illegal lba\n"));
scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
HARDWARE_ERROR,
SENCODE_INTERNAL_TARGET_FAILURE,
ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
0, 0);
memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
(sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
? sizeof(scsicmd->sense_buffer)
: sizeof(dev->fsa_dev[cid].sense_data));
scsicmd->scsi_done(scsicmd);
return 0;
}
/*
* Allocate and initialize a Fib then setup a BlockWrite command
*/
......@@ -1068,8 +1219,8 @@ static int aac_write(struct scsi_cmnd * scsicmd, int cid)
if (dev->raw_io_interface) {
struct aac_raw_io *writecmd;
writecmd = (struct aac_raw_io *) fib_data(cmd_fibcontext);
writecmd->block[0] = cpu_to_le32(lba);
writecmd->block[1] = 0;
writecmd->block[0] = cpu_to_le32((u32)(lba&0xffffffff));
writecmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
writecmd->count = cpu_to_le32(count<<9);
writecmd->cid = cpu_to_le16(cid);
writecmd->flags = 0;
......@@ -1096,7 +1247,7 @@ static int aac_write(struct scsi_cmnd * scsicmd, int cid)
writecmd->command = cpu_to_le32(VM_CtHostWrite64);
writecmd->cid = cpu_to_le16(cid);
writecmd->sector_count = cpu_to_le16(count);
writecmd->block = cpu_to_le32(lba);
writecmd->block = cpu_to_le32((u32)(lba&0xffffffff));
writecmd->pad = 0;
writecmd->flags = 0;
......@@ -1121,7 +1272,7 @@ static int aac_write(struct scsi_cmnd * scsicmd, int cid)
writecmd = (struct aac_write *) fib_data(cmd_fibcontext);
writecmd->command = cpu_to_le32(VM_CtBlockWrite);
writecmd->cid = cpu_to_le32(cid);
writecmd->block = cpu_to_le32(lba);
writecmd->block = cpu_to_le32((u32)(lba&0xffffffff));
writecmd->count = cpu_to_le32(count * 512);
writecmd->sg.count = cpu_to_le32(1);
/* ->stable is not used - it did mean which type of write */
......@@ -1310,11 +1461,18 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
*/
if ((fsa_dev_ptr[cid].valid & 1) == 0) {
switch (scsicmd->cmnd[0]) {
case SERVICE_ACTION_IN:
if (!(dev->raw_io_interface) ||
!(dev->raw_io_64) ||
((scsicmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16))
break;
case INQUIRY:
case READ_CAPACITY:
case TEST_UNIT_READY:
spin_unlock_irq(host->host_lock);
probe_container(dev, cid);
if ((fsa_dev_ptr[cid].valid & 1) == 0)
fsa_dev_ptr[cid].valid = 0;
spin_lock_irq(host->host_lock);
if (fsa_dev_ptr[cid].valid == 0) {
scsicmd->result = DID_NO_CONNECT << 16;
......@@ -1375,7 +1533,6 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
memset(&inq_data, 0, sizeof (struct inquiry_data));
inq_data.inqd_ver = 2; /* claim compliance to SCSI-2 */
inq_data.inqd_dtq = 0x80; /* set RMB bit to one indicating that the medium is removable */
inq_data.inqd_rdf = 2; /* A response data format value of two indicates that the data shall be in the format specified in SCSI-2 */
inq_data.inqd_len = 31;
/*Format for "pad2" is RelAdr | WBus32 | WBus16 | Sync | Linked |Reserved| CmdQue | SftRe */
......@@ -1397,13 +1554,55 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
aac_internal_transfer(scsicmd, &inq_data, 0, sizeof(inq_data));
return aac_get_container_name(scsicmd, cid);
}
case SERVICE_ACTION_IN:
if (!(dev->raw_io_interface) ||
!(dev->raw_io_64) ||
((scsicmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16))
break;
{
u64 capacity;
char cp[12];
unsigned int offset = 0;
dprintk((KERN_DEBUG "READ CAPACITY_16 command.\n"));
capacity = fsa_dev_ptr[cid].size - 1;
if (scsicmd->cmnd[13] > 12) {
offset = scsicmd->cmnd[13] - 12;
if (offset > sizeof(cp))
break;
memset(cp, 0, offset);
aac_internal_transfer(scsicmd, cp, 0, offset);
}
cp[0] = (capacity >> 56) & 0xff;
cp[1] = (capacity >> 48) & 0xff;
cp[2] = (capacity >> 40) & 0xff;
cp[3] = (capacity >> 32) & 0xff;
cp[4] = (capacity >> 24) & 0xff;
cp[5] = (capacity >> 16) & 0xff;
cp[6] = (capacity >> 8) & 0xff;
cp[7] = (capacity >> 0) & 0xff;
cp[8] = 0;
cp[9] = 0;
cp[10] = 2;
cp[11] = 0;
aac_internal_transfer(scsicmd, cp, offset, sizeof(cp));
/* Do not cache partition table for arrays */
scsicmd->device->removable = 1;
scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
scsicmd->scsi_done(scsicmd);
return 0;
}
case READ_CAPACITY:
{
u32 capacity;
char cp[8];
dprintk((KERN_DEBUG "READ CAPACITY command.\n"));
if (fsa_dev_ptr[cid].size <= 0x100000000LL)
if (fsa_dev_ptr[cid].size <= 0x100000000ULL)
capacity = fsa_dev_ptr[cid].size - 1;
else
capacity = (u32)-1;
......@@ -1417,6 +1616,8 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
cp[6] = 2;
cp[7] = 0;
aac_internal_transfer(scsicmd, cp, 0, sizeof(cp));
/* Do not cache partition table for arrays */
scsicmd->device->removable = 1;
scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
scsicmd->scsi_done(scsicmd);
......@@ -1497,6 +1698,8 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
{
case READ_6:
case READ_10:
case READ_12:
case READ_16:
/*
* Hack to keep track of ordinal number of the device that
* corresponds to a container. Needed to convert
......@@ -1505,16 +1708,18 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
spin_unlock_irq(host->host_lock);
if (scsicmd->request->rq_disk)
memcpy(fsa_dev_ptr[cid].devname,
strlcpy(fsa_dev_ptr[cid].devname,
scsicmd->request->rq_disk->disk_name,
8);
min(sizeof(fsa_dev_ptr[cid].devname),
sizeof(scsicmd->request->rq_disk->disk_name) + 1));
ret = aac_read(scsicmd, cid);
spin_lock_irq(host->host_lock);
return ret;
case WRITE_6:
case WRITE_10:
case WRITE_12:
case WRITE_16:
spin_unlock_irq(host->host_lock);
ret = aac_write(scsicmd, cid);
spin_lock_irq(host->host_lock);
......@@ -1745,6 +1950,8 @@ static void aac_srb_callback(void *context, struct fib * fibptr)
case WRITE_10:
case READ_12:
case WRITE_12:
case READ_16:
case WRITE_16:
if(le32_to_cpu(srbreply->data_xfer_length) < scsicmd->underflow ) {
printk(KERN_WARNING"aacraid: SCSI CMD underflow\n");
} else {
......@@ -1850,8 +2057,8 @@ static void aac_srb_callback(void *context, struct fib * fibptr)
sizeof(scsicmd->sense_buffer) :
le32_to_cpu(srbreply->sense_data_size);
#ifdef AAC_DETAILED_STATUS_INFO
dprintk((KERN_WARNING "aac_srb_callback: check condition, status = %d len=%d\n",
le32_to_cpu(srbreply->status), len));
printk(KERN_WARNING "aac_srb_callback: check condition, status = %d len=%d\n",
le32_to_cpu(srbreply->status), len);
#endif
memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
......
drivers/scsi/aacraid/aacraid.h
View file @ 7d6322b4
#if (!defined(dprintk))
# define dprintk(x)
#endif
/* eg: if (nblank(dprintk(x))) */
#define _nblank(x) #x
#define nblank(x) _nblank(x)[0]
/*------------------------------------------------------------------------------
* D E F I N E S
......@@ -302,7 +306,6 @@ enum aac_queue_types {
*/
#define FsaNormal 1
#define FsaHigh 2
/*
* Define the FIB. The FIB is the where all the requested data and
......@@ -546,8 +549,6 @@ struct aac_queue {
/* This is only valid for adapter to host command queues. */
spinlock_t *lock; /* Spinlock for this queue must take this lock before accessing the lock */
spinlock_t lockdata; /* Actual lock (used only on one side of the lock) */
unsigned long SavedIrql; /* Previous IRQL when the spin lock is taken */
u32 padding; /* Padding - FIXME - can remove I believe */
struct list_head cmdq; /* A queue of FIBs which need to be prcessed by the FS thread. This is */
/* only valid for command queues which receive entries from the adapter. */
struct list_head pendingq; /* A queue of outstanding fib's to the adapter. */
......@@ -776,7 +777,9 @@ struct fsa_dev_info {
u64 last;
u64 size;
u32 type;
u32 config_waiting_on;
u16 queue_depth;
u8 config_needed;
u8 valid;
u8 ro;
u8 locked;
......@@ -1012,6 +1015,7 @@ struct aac_dev
/* macro side-effects BEWARE */
# define raw_io_interface \
init->InitStructRevision==cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_4)
u8 raw_io_64;
u8 printf_enabled;
};
......@@ -1362,8 +1366,10 @@ struct aac_srb_reply
#define VM_CtBlockVerify64 18
#define VM_CtHostRead64 19
#define VM_CtHostWrite64 20
#define VM_DrvErrTblLog 21
#define VM_NameServe64 22
#define MAX_VMCOMMAND_NUM 21 /* used for sizing stats array - leave last */
#define MAX_VMCOMMAND_NUM 23 /* used for sizing stats array - leave last */
/*
* Descriptive information (eg, vital stats)
......@@ -1472,6 +1478,7 @@ struct aac_mntent {
manager (eg, filesystem) */
__le32 altoid; /* != oid <==> snapshot or
broken mirror exists */
__le32 capacityhigh;
};
#define FSCS_NOTCLEAN 0x0001 /* fsck is neccessary before mounting */
......@@ -1707,6 +1714,7 @@ extern struct aac_common aac_config;
#define AifCmdJobProgress 2 /* Progress report */
#define AifJobCtrZero 101 /* Array Zero progress */
#define AifJobStsSuccess 1 /* Job completes */
#define AifJobStsRunning 102 /* Job running */
#define AifCmdAPIReport 3 /* Report from other user of API */
#define AifCmdDriverNotify 4 /* Notify host driver of event */
#define AifDenMorphComplete 200 /* A morph operation completed */
......@@ -1777,6 +1785,7 @@ int fib_adapter_complete(struct fib * fibptr, unsigned short size);
struct aac_driver_ident* aac_get_driver_ident(int devtype);
int aac_get_adapter_info(struct aac_dev* dev);
int aac_send_shutdown(struct aac_dev *dev);
int probe_container(struct aac_dev *dev, int cid);
extern int numacb;
extern int acbsize;
extern char aac_driver_version[];
drivers/scsi/aacraid/comminit.c
View file @ 7d6322b4
......@@ -195,7 +195,7 @@ int aac_send_shutdown(struct aac_dev * dev)
fibctx,
sizeof(struct aac_close),
FsaNormal,
1, 1,
-2 /* Timeout silently */, 1,
NULL, NULL);
if (status == 0)
......@@ -313,8 +313,15 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev)
dev->max_fib_size = sizeof(struct hw_fib);
dev->sg_tablesize = host->sg_tablesize = (dev->max_fib_size
- sizeof(struct aac_fibhdr)
- sizeof(struct aac_write) + sizeof(struct sgmap))
/ sizeof(struct sgmap);
- sizeof(struct aac_write) + sizeof(struct sgentry))
/ sizeof(struct sgentry);
dev->raw_io_64 = 0;
if ((!aac_adapter_sync_cmd(dev, GET_ADAPTER_PROPERTIES,
0, 0, 0, 0, 0, 0, status+0, status+1, status+2, NULL, NULL)) &&
(status[0] == 0x00000001)) {
if (status[1] & AAC_OPT_NEW_COMM_64)
dev->raw_io_64 = 1;
}
if ((!aac_adapter_sync_cmd(dev, GET_COMM_PREFERRED_SETTINGS,
0, 0, 0, 0, 0, 0,
status+0, status+1, status+2, status+3, status+4))
......@@ -342,8 +349,8 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev)
dev->max_fib_size = 512;
dev->sg_tablesize = host->sg_tablesize
= (512 - sizeof(struct aac_fibhdr)
- sizeof(struct aac_write) + sizeof(struct sgmap))
/ sizeof(struct sgmap);
- sizeof(struct aac_write) + sizeof(struct sgentry))
/ sizeof(struct sgentry);
host->can_queue = AAC_NUM_IO_FIB;
} else if (acbsize == 2048) {
host->max_sectors = 512;
......
drivers/scsi/aacraid/commsup.c
View file @ 7d6322b4
......@@ -39,7 +39,9 @@
#include <linux/completion.h>
#include <linux/blkdev.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_device.h>
#include <asm/semaphore.h>
#include <asm/delay.h>
#include "aacraid.h"
......@@ -269,40 +271,22 @@ static int aac_get_entry (struct aac_dev * dev, u32 qid, struct aac_entry **entr
/* Interrupt Moderation, only interrupt for first two entries */
if (idx != le32_to_cpu(*(q->headers.consumer))) {
if (--idx == 0) {
if (qid == AdapHighCmdQueue)
idx = ADAP_HIGH_CMD_ENTRIES;
else if (qid == AdapNormCmdQueue)
if (qid == AdapNormCmdQueue)
idx = ADAP_NORM_CMD_ENTRIES;
else if (qid == AdapHighRespQueue)
idx = ADAP_HIGH_RESP_ENTRIES;
else if (qid == AdapNormRespQueue)
else
idx = ADAP_NORM_RESP_ENTRIES;
}
if (idx != le32_to_cpu(*(q->headers.consumer)))
*nonotify = 1;
}
if (qid == AdapHighCmdQueue) {
if (*index >= ADAP_HIGH_CMD_ENTRIES)
*index = 0;
} else if (qid == AdapNormCmdQueue) {
if (qid == AdapNormCmdQueue) {
if (*index >= ADAP_NORM_CMD_ENTRIES)
*index = 0; /* Wrap to front of the Producer Queue. */
}
else if (qid == AdapHighRespQueue)
{
if (*index >= ADAP_HIGH_RESP_ENTRIES)
*index = 0;
}
else if (qid == AdapNormRespQueue)
{
} else {
if (*index >= ADAP_NORM_RESP_ENTRIES)
*index = 0; /* Wrap to front of the Producer Queue. */
}
else {
printk("aacraid: invalid qid\n");
BUG();
}
if ((*index + 1) == le32_to_cpu(*(q->headers.consumer))) { /* Queue is full */
printk(KERN_WARNING "Queue %d full, %u outstanding.\n",
......@@ -334,12 +318,8 @@ static int aac_queue_get(struct aac_dev * dev, u32 * index, u32 qid, struct hw_f
{
struct aac_entry * entry = NULL;
int map = 0;
struct aac_queue * q = &dev->queues->queue[qid];
spin_lock_irqsave(q->lock, q->SavedIrql);
if (qid == AdapHighCmdQueue || qid == AdapNormCmdQueue)
{
if (qid == AdapNormCmdQueue) {
/* if no entries wait for some if caller wants to */
while (!aac_get_entry(dev, qid, &entry, index, nonotify))
{
......@@ -350,9 +330,7 @@ static int aac_queue_get(struct aac_dev * dev, u32 * index, u32 qid, struct hw_f
*/
entry->size = cpu_to_le32(le16_to_cpu(hw_fib->header.Size));
map = 1;
}
else if (qid == AdapHighRespQueue || qid == AdapNormRespQueue)
{
} else {
while(!aac_get_entry(dev, qid, &entry, index, nonotify))
{
/* if no entries wait for some if caller wants to */
......@@ -375,42 +353,6 @@ static int aac_queue_get(struct aac_dev * dev, u32 * index, u32 qid, struct hw_f
return 0;
}
/**
* aac_insert_entry - insert a queue entry
* @dev: Adapter
* @index: Index of entry to insert
* @qid: Queue number
* @nonotify: Suppress adapter notification
*
* Gets the next free QE off the requested priorty adapter command
* queue and associates the Fib with the QE. The QE represented by
* index is ready to insert on the queue when this routine returns
* success.
*/
static int aac_insert_entry(struct aac_dev * dev, u32 index, u32 qid, unsigned long nonotify)
{
struct aac_queue * q = &dev->queues->queue[qid];
if(q == NULL)
BUG();
*(q->headers.producer) = cpu_to_le32(index + 1);
spin_unlock_irqrestore(q->lock, q->SavedIrql);
if (qid == AdapHighCmdQueue ||
qid == AdapNormCmdQueue ||
qid == AdapHighRespQueue ||
qid == AdapNormRespQueue)
{
if (!nonotify)
aac_adapter_notify(dev, qid);
}
else
printk("Suprise insert!\n");
return 0;
}
/*
* Define the highest level of host to adapter communication routines.
* These routines will support host to adapter FS commuication. These
......@@ -439,12 +381,13 @@ static int aac_insert_entry(struct aac_dev * dev, u32 index, u32 qid, unsigned l
int fib_send(u16 command, struct fib * fibptr, unsigned long size, int priority, int wait, int reply, fib_callback callback, void * callback_data)
{
u32 index;
u32 qid;
struct aac_dev * dev = fibptr->dev;
unsigned long nointr = 0;
struct hw_fib * hw_fib = fibptr->hw_fib;
struct aac_queue * q;
unsigned long flags = 0;
unsigned long qflags;
if (!(hw_fib->header.XferState & cpu_to_le32(HostOwned)))
return -EBUSY;
/*
......@@ -497,26 +440,8 @@ int fib_send(u16 command, struct fib * fibptr, unsigned long size, int priority
* Get a queue entry connect the FIB to it and send an notify
* the adapter a command is ready.
*/
if (priority == FsaHigh) {
hw_fib->header.XferState |= cpu_to_le32(HighPriority);
qid = AdapHighCmdQueue;
} else {
hw_fib->header.XferState |= cpu_to_le32(NormalPriority);
qid = AdapNormCmdQueue;
}
q = &dev->queues->queue[qid];
if(wait)
spin_lock_irqsave(&fibptr->event_lock, flags);
if(aac_queue_get( dev, &index, qid, hw_fib, 1, fibptr, &nointr)<0)
return -EWOULDBLOCK;
dprintk((KERN_DEBUG "fib_send: inserting a queue entry at index %d.\n",index));
dprintk((KERN_DEBUG "Fib contents:.\n"));
dprintk((KERN_DEBUG " Command = %d.\n", hw_fib->header.Command));
dprintk((KERN_DEBUG " XferState = %x.\n", hw_fib->header.XferState));
dprintk((KERN_DEBUG " hw_fib va being sent=%p\n",fibptr->hw_fib));
dprintk((KERN_DEBUG " hw_fib pa being sent=%lx\n",(ulong)fibptr->hw_fib_pa));
dprintk((KERN_DEBUG " fib being sent=%p\n",fibptr));
/*
* Fill in the Callback and CallbackContext if we are not
* going to wait.
......@@ -525,21 +450,66 @@ int fib_send(u16 command, struct fib * fibptr, unsigned long size, int priority
fibptr->callback = callback;
fibptr->callback_data = callback_data;
}
FIB_COUNTER_INCREMENT(aac_config.FibsSent);
list_add_tail(&fibptr->queue, &q->pendingq);
q->numpending++;
fibptr->done = 0;
fibptr->flags = 0;
if(aac_insert_entry(dev, index, qid, (nointr & aac_config.irq_mod)) < 0)
return -EWOULDBLOCK;
FIB_COUNTER_INCREMENT(aac_config.FibsSent);
dprintk((KERN_DEBUG "fib_send: inserting a queue entry at index %d.\n",index));
dprintk((KERN_DEBUG "Fib contents:.\n"));
dprintk((KERN_DEBUG " Command = %d.\n", hw_fib->header.Command));
dprintk((KERN_DEBUG " XferState = %x.\n", hw_fib->header.XferState));
dprintk((KERN_DEBUG " hw_fib va being sent=%p\n",fibptr->hw_fib));
dprintk((KERN_DEBUG " hw_fib pa being sent=%lx\n",(ulong)fibptr->hw_fib_pa));
dprintk((KERN_DEBUG " fib being sent=%p\n",fibptr));
q = &dev->queues->queue[AdapNormCmdQueue];
if(wait)
spin_lock_irqsave(&fibptr->event_lock, flags);
spin_lock_irqsave(q->lock, qflags);
aac_queue_get( dev, &index, AdapNormCmdQueue, hw_fib, 1, fibptr, &nointr);
list_add_tail(&fibptr->queue, &q->pendingq);
q->numpending++;
*(q->headers.producer) = cpu_to_le32(index + 1);
spin_unlock_irqrestore(q->lock, qflags);
if (!(nointr & aac_config.irq_mod))
aac_adapter_notify(dev, AdapNormCmdQueue);
/*
* If the caller wanted us to wait for response wait now.
*/
if (wait) {
spin_unlock_irqrestore(&fibptr->event_lock, flags);
/* Only set for first known interruptable command */
if (wait < 0) {
/*
* *VERY* Dangerous to time out a command, the
* assumption is made that we have no hope of
* functioning because an interrupt routing or other
* hardware failure has occurred.
*/
unsigned long count = 36000000L; /* 3 minutes */
unsigned long qflags;
while (down_trylock(&fibptr->event_wait)) {
if (--count == 0) {
spin_lock_irqsave(q->lock, qflags);
q->numpending--;
list_del(&fibptr->queue);
spin_unlock_irqrestore(q->lock, qflags);
if (wait == -1) {
printk(KERN_ERR "aacraid: fib_send: first asynchronous command timed out.\n"
"Usually a result of a PCI interrupt routing problem;\n"
"update mother board BIOS or consider utilizing one of\n"
"the SAFE mode kernel options (acpi, apic etc)\n");
}
return -ETIMEDOUT;
}
udelay(5);
}
} else
down(&fibptr->event_wait);
if(fibptr->done == 0)
BUG();
......@@ -622,15 +592,9 @@ void aac_consumer_free(struct aac_dev * dev, struct aac_queue *q, u32 qid)
case HostNormCmdQueue:
notify = HostNormCmdNotFull;
break;
case HostHighCmdQueue:
notify = HostHighCmdNotFull;
break;
case HostNormRespQueue:
notify = HostNormRespNotFull;
break;
case HostHighRespQueue:
notify = HostHighRespNotFull;
break;
default:
BUG();
return;
......@@ -652,9 +616,13 @@ int fib_adapter_complete(struct fib * fibptr, unsigned short size)
{
struct hw_fib * hw_fib = fibptr->hw_fib;
struct aac_dev * dev = fibptr->dev;
struct aac_queue * q;
unsigned long nointr = 0;
if (hw_fib->header.XferState == 0)
unsigned long qflags;
if (hw_fib->header.XferState == 0) {
return 0;
}
/*
* If we plan to do anything check the structure type first.
*/
......@@ -669,37 +637,21 @@ int fib_adapter_complete(struct fib * fibptr, unsigned short size)
* send the completed cdb to the adapter.
*/
if (hw_fib->header.XferState & cpu_to_le32(SentFromAdapter)) {
hw_fib->header.XferState |= cpu_to_le32(HostProcessed);
if (hw_fib->header.XferState & cpu_to_le32(HighPriority)) {
u32 index;
if (size)
{
size += sizeof(struct aac_fibhdr);
if (size > le16_to_cpu(hw_fib->header.SenderSize))
return -EMSGSIZE;
hw_fib->header.Size = cpu_to_le16(size);
}
if(aac_queue_get(dev, &index, AdapHighRespQueue, hw_fib, 1, NULL, &nointr) < 0) {
return -EWOULDBLOCK;
}
if (aac_insert_entry(dev, index, AdapHighRespQueue, (nointr & (int)aac_config.irq_mod)) != 0) {
}
} else if (hw_fib->header.XferState &
cpu_to_le32(NormalPriority)) {
u32 index;
hw_fib->header.XferState |= cpu_to_le32(HostProcessed);
if (size) {
size += sizeof(struct aac_fibhdr);
if (size > le16_to_cpu(hw_fib->header.SenderSize))
return -EMSGSIZE;
hw_fib->header.Size = cpu_to_le16(size);
}
if (aac_queue_get(dev, &index, AdapNormRespQueue, hw_fib, 1, NULL, &nointr) < 0)
return -EWOULDBLOCK;
if (aac_insert_entry(dev, index, AdapNormRespQueue, (nointr & (int)aac_config.irq_mod)) != 0)
{
}
}
q = &dev->queues->queue[AdapNormRespQueue];
spin_lock_irqsave(q->lock, qflags);
aac_queue_get(dev, &index, AdapNormRespQueue, hw_fib, 1, NULL, &nointr);
*(q->headers.producer) = cpu_to_le32(index + 1);
spin_unlock_irqrestore(q->lock, qflags);
if (!(nointr & (int)aac_config.irq_mod))
aac_adapter_notify(dev, AdapNormRespQueue);
}
else
{
......@@ -791,6 +743,268 @@ void aac_printf(struct aac_dev *dev, u32 val)
memset(cp, 0, 256);
}
/**
* aac_handle_aif - Handle a message from the firmware
* @dev: Which adapter this fib is from
* @fibptr: Pointer to fibptr from adapter
*
* This routine handles a driver notify fib from the adapter and
* dispatches it to the appropriate routine for handling.
*/
static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr)
{
struct hw_fib * hw_fib = fibptr->hw_fib;
struct aac_aifcmd * aifcmd = (struct aac_aifcmd *)hw_fib->data;
int busy;
u32 container;
struct scsi_device *device;
enum {
NOTHING,
DELETE,
ADD,
CHANGE
} device_config_needed;
/* Sniff for container changes */
if (!dev)
return;
container = (u32)-1;
/*
* We have set this up to try and minimize the number of
* re-configures that take place. As a result of this when
* certain AIF's come in we will set a flag waiting for another
* type of AIF before setting the re-config flag.
*/
switch (le32_to_cpu(aifcmd->command)) {
case AifCmdDriverNotify:
switch (le32_to_cpu(((u32 *)aifcmd->data)[0])) {
/*
* Morph or Expand complete
*/
case AifDenMorphComplete:
case AifDenVolumeExtendComplete:
container = le32_to_cpu(((u32 *)aifcmd->data)[1]);
if (container >= dev->maximum_num_containers)
break;
/*
* Find the Scsi_Device associated with the SCSI
* address. Make sure we have the right array, and if
* so set the flag to initiate a new re-config once we
* see an AifEnConfigChange AIF come through.
*/
if ((dev != NULL) && (dev->scsi_host_ptr != NULL)) {
device = scsi_device_lookup(dev->scsi_host_ptr,
CONTAINER_TO_CHANNEL(container),
CONTAINER_TO_ID(container),
CONTAINER_TO_LUN(container));
if (device) {
dev->fsa_dev[container].config_needed = CHANGE;
dev->fsa_dev[container].config_waiting_on = AifEnConfigChange;
scsi_device_put(device);
}
}
}
/*
* If we are waiting on something and this happens to be
* that thing then set the re-configure flag.
*/
if (container != (u32)-1) {
if (container >= dev->maximum_num_containers)
break;
if (dev->fsa_dev[container].config_waiting_on ==
le32_to_cpu(*(u32 *)aifcmd->data))
dev->fsa_dev[container].config_waiting_on = 0;
} else for (container = 0;
container < dev->maximum_num_containers; ++container) {
if (dev->fsa_dev[container].config_waiting_on ==
le32_to_cpu(*(u32 *)aifcmd->data))
dev->fsa_dev[container].config_waiting_on = 0;
}
break;
case AifCmdEventNotify:
switch (le32_to_cpu(((u32 *)aifcmd->data)[0])) {
/*
* Add an Array.
*/
case AifEnAddContainer:
container = le32_to_cpu(((u32 *)aifcmd->data)[1]);
if (container >= dev->maximum_num_containers)
break;
dev->fsa_dev[container].config_needed = ADD;
dev->fsa_dev[container].config_waiting_on =
AifEnConfigChange;
break;
/*
* Delete an Array.
*/
case AifEnDeleteContainer:
container = le32_to_cpu(((u32 *)aifcmd->data)[1]);
if (container >= dev->maximum_num_containers)
break;
dev->fsa_dev[container].config_needed = DELETE;
dev->fsa_dev[container].config_waiting_on =
AifEnConfigChange;
break;
/*
* Container change detected. If we currently are not
* waiting on something else, setup to wait on a Config Change.
*/
case AifEnContainerChange:
container = le32_to_cpu(((u32 *)aifcmd->data)[1]);
if (container >= dev->maximum_num_containers)
break;
if (dev->fsa_dev[container].config_waiting_on)
break;
dev->fsa_dev[container].config_needed = CHANGE;
dev->fsa_dev[container].config_waiting_on =
AifEnConfigChange;
break;
case AifEnConfigChange:
break;
}
/*
* If we are waiting on something and this happens to be
* that thing then set the re-configure flag.
*/
if (container != (u32)-1) {
if (container >= dev->maximum_num_containers)
break;
if (dev->fsa_dev[container].config_waiting_on ==
le32_to_cpu(*(u32 *)aifcmd->data))
dev->fsa_dev[container].config_waiting_on = 0;
} else for (container = 0;
container < dev->maximum_num_containers; ++container) {
if (dev->fsa_dev[container].config_waiting_on ==
le32_to_cpu(*(u32 *)aifcmd->data))
dev->fsa_dev[container].config_waiting_on = 0;
}
break;
case AifCmdJobProgress:
/*
* These are job progress AIF's. When a Clear is being
* done on a container it is initially created then hidden from
* the OS. When the clear completes we don't get a config
* change so we monitor the job status complete on a clear then
* wait for a container change.
*/
if ((((u32 *)aifcmd->data)[1] == cpu_to_le32(AifJobCtrZero))
&& ((((u32 *)aifcmd->data)[6] == ((u32 *)aifcmd->data)[5])
|| (((u32 *)aifcmd->data)[4] == cpu_to_le32(AifJobStsSuccess)))) {
for (container = 0;
container < dev->maximum_num_containers;
++container) {
/*
* Stomp on all config sequencing for all
* containers?
*/
dev->fsa_dev[container].config_waiting_on =
AifEnContainerChange;
dev->fsa_dev[container].config_needed = ADD;
}
}
if ((((u32 *)aifcmd->data)[1] == cpu_to_le32(AifJobCtrZero))
&& (((u32 *)aifcmd->data)[6] == 0)
&& (((u32 *)aifcmd->data)[4] == cpu_to_le32(AifJobStsRunning))) {
for (container = 0;
container < dev->maximum_num_containers;
++container) {
/*
* Stomp on all config sequencing for all
* containers?
*/
dev->fsa_dev[container].config_waiting_on =
AifEnContainerChange;
dev->fsa_dev[container].config_needed = DELETE;
}
}
break;
}
device_config_needed = NOTHING;
for (container = 0; container < dev->maximum_num_containers;
++container) {
if ((dev->fsa_dev[container].config_waiting_on == 0)
&& (dev->fsa_dev[container].config_needed != NOTHING)) {
device_config_needed =
dev->fsa_dev[container].config_needed;
dev->fsa_dev[container].config_needed = NOTHING;
break;
}
}
if (device_config_needed == NOTHING)
return;
/*
* If we decided that a re-configuration needs to be done,
* schedule it here on the way out the door, please close the door
* behind you.
*/
busy = 0;
/*
* Find the Scsi_Device associated with the SCSI address,
* and mark it as changed, invalidating the cache. This deals
* with changes to existing device IDs.
*/
if (!dev || !dev->scsi_host_ptr)
return;
/*
* force reload of disk info via probe_container
*/
if ((device_config_needed == CHANGE)
&& (dev->fsa_dev[container].valid == 1))
dev->fsa_dev[container].valid = 2;
if ((device_config_needed == CHANGE) ||
(device_config_needed == ADD))
probe_container(dev, container);
device = scsi_device_lookup(dev->scsi_host_ptr,
CONTAINER_TO_CHANNEL(container),
CONTAINER_TO_ID(container),
CONTAINER_TO_LUN(container));
if (device) {
switch (device_config_needed) {
case DELETE:
scsi_remove_device(device);
break;
case CHANGE:
if (!dev->fsa_dev[container].valid) {
scsi_remove_device(device);
break;
}
scsi_rescan_device(&device->sdev_gendev);
default:
break;
}
scsi_device_put(device);
}
if (device_config_needed == ADD) {
scsi_add_device(dev->scsi_host_ptr,
CONTAINER_TO_CHANNEL(container),
CONTAINER_TO_ID(container),
CONTAINER_TO_LUN(container));
}
}
/**
* aac_command_thread - command processing thread
* @dev: Adapter to monitor
......@@ -805,7 +1019,6 @@ int aac_command_thread(struct aac_dev * dev)
{
struct hw_fib *hw_fib, *hw_newfib;
struct fib *fib, *newfib;
struct aac_queue_block *queues = dev->queues;
struct aac_fib_context *fibctx;
unsigned long flags;
DECLARE_WAITQUEUE(wait, current);
......@@ -825,21 +1038,22 @@ int aac_command_thread(struct aac_dev * dev)
* Let the DPC know it has a place to send the AIF's to.
*/
dev->aif_thread = 1;
add_wait_queue(&queues->queue[HostNormCmdQueue].cmdready, &wait);
add_wait_queue(&dev->queues->queue[HostNormCmdQueue].cmdready, &wait);
set_current_state(TASK_INTERRUPTIBLE);
dprintk ((KERN_INFO "aac_command_thread start\n"));
while(1)
{
spin_lock_irqsave(queues->queue[HostNormCmdQueue].lock, flags);
while(!list_empty(&(queues->queue[HostNormCmdQueue].cmdq))) {
spin_lock_irqsave(dev->queues->queue[HostNormCmdQueue].lock, flags);
while(!list_empty(&(dev->queues->queue[HostNormCmdQueue].cmdq))) {
struct list_head *entry;
struct aac_aifcmd * aifcmd;
set_current_state(TASK_RUNNING);
entry = queues->queue[HostNormCmdQueue].cmdq.next;
entry = dev->queues->queue[HostNormCmdQueue].cmdq.next;
list_del(entry);
spin_unlock_irqrestore(queues->queue[HostNormCmdQueue].lock, flags);
spin_unlock_irqrestore(dev->queues->queue[HostNormCmdQueue].lock, flags);
fib = list_entry(entry, struct fib, fiblink);
/*
* We will process the FIB here or pass it to a
......@@ -860,6 +1074,7 @@ int aac_command_thread(struct aac_dev * dev)
aifcmd = (struct aac_aifcmd *) hw_fib->data;
if (aifcmd->command == cpu_to_le32(AifCmdDriverNotify)) {
/* Handle Driver Notify Events */
aac_handle_aif(dev, fib);
*(__le32 *)hw_fib->data = cpu_to_le32(ST_OK);
fib_adapter_complete(fib, (u16)sizeof(u32));
} else {
......@@ -869,9 +1084,62 @@ int aac_command_thread(struct aac_dev * dev)
u32 time_now, time_last;
unsigned long flagv;
unsigned num;
struct hw_fib ** hw_fib_pool, ** hw_fib_p;
struct fib ** fib_pool, ** fib_p;
/* Sniff events */
if ((aifcmd->command ==
cpu_to_le32(AifCmdEventNotify)) ||
(aifcmd->command ==
cpu_to_le32(AifCmdJobProgress))) {
aac_handle_aif(dev, fib);
}
time_now = jiffies/HZ;
/*
* Warning: no sleep allowed while
* holding spinlock. We take the estimate
* and pre-allocate a set of fibs outside the
* lock.
*/
num = le32_to_cpu(dev->init->AdapterFibsSize)
/ sizeof(struct hw_fib); /* some extra */
spin_lock_irqsave(&dev->fib_lock, flagv);
entry = dev->fib_list.next;
while (entry != &dev->fib_list) {
entry = entry->next;
++num;
}
spin_unlock_irqrestore(&dev->fib_lock, flagv);
hw_fib_pool = NULL;
fib_pool = NULL;
if (num
&& ((hw_fib_pool = kmalloc(sizeof(struct hw_fib *) * num, GFP_KERNEL)))
&& ((fib_pool = kmalloc(sizeof(struct fib *) * num, GFP_KERNEL)))) {
hw_fib_p = hw_fib_pool;
fib_p = fib_pool;
while (hw_fib_p < &hw_fib_pool[num]) {
if (!(*(hw_fib_p++) = kmalloc(sizeof(struct hw_fib), GFP_KERNEL))) {
--hw_fib_p;
break;
}
if (!(*(fib_p++) = kmalloc(sizeof(struct fib), GFP_KERNEL))) {
kfree(*(--hw_fib_p));
break;
}
}
if ((num = hw_fib_p - hw_fib_pool) == 0) {
kfree(fib_pool);
fib_pool = NULL;
kfree(hw_fib_pool);
hw_fib_pool = NULL;
}
} else if (hw_fib_pool) {
kfree(hw_fib_pool);
hw_fib_pool = NULL;
}
spin_lock_irqsave(&dev->fib_lock, flagv);
entry = dev->fib_list.next;
/*
......@@ -880,6 +1148,8 @@ int aac_command_thread(struct aac_dev * dev)
* fib, and then set the event to wake up the
* thread that is waiting for it.
*/
hw_fib_p = hw_fib_pool;
fib_p = fib_pool;
while (entry != &dev->fib_list) {
/*
* Extract the fibctx
......@@ -912,9 +1182,11 @@ int aac_command_thread(struct aac_dev * dev)
* Warning: no sleep allowed while
* holding spinlock
*/
hw_newfib = kmalloc(sizeof(struct hw_fib), GFP_ATOMIC);
newfib = kmalloc(sizeof(struct fib), GFP_ATOMIC);
if (newfib && hw_newfib) {
if (hw_fib_p < &hw_fib_pool[num]) {
hw_newfib = *hw_fib_p;
*(hw_fib_p++) = NULL;
newfib = *fib_p;
*(fib_p++) = NULL;
/*
* Make the copy of the FIB
*/
......@@ -929,15 +1201,11 @@ int aac_command_thread(struct aac_dev * dev)
fibctx->count++;
/*
* Set the event to wake up the
* thread that will waiting.
* thread that is waiting.
*/
up(&fibctx->wait_sem);
} else {
printk(KERN_WARNING "aifd: didn't allocate NewFib.\n");
if(newfib)
kfree(newfib);
if(hw_newfib)
kfree(hw_newfib);
}
entry = entry->next;
}
......@@ -947,21 +1215,38 @@ int aac_command_thread(struct aac_dev * dev)
*(__le32 *)hw_fib->data = cpu_to_le32(ST_OK);
fib_adapter_complete(fib, sizeof(u32));
spin_unlock_irqrestore(&dev->fib_lock, flagv);
/* Free up the remaining resources */
hw_fib_p = hw_fib_pool;
fib_p = fib_pool;
while (hw_fib_p < &hw_fib_pool[num]) {
if (*hw_fib_p)
kfree(*hw_fib_p);
if (*fib_p)
kfree(*fib_p);
++fib_p;
++hw_fib_p;
}
if (hw_fib_pool)
kfree(hw_fib_pool);
if (fib_pool)
kfree(fib_pool);
}
spin_lock_irqsave(queues->queue[HostNormCmdQueue].lock, flags);
kfree(fib);
spin_lock_irqsave(dev->queues->queue[HostNormCmdQueue].lock, flags);
}
/*
* There are no more AIF's
*/
spin_unlock_irqrestore(queues->queue[HostNormCmdQueue].lock, flags);
spin_unlock_irqrestore(dev->queues->queue[HostNormCmdQueue].lock, flags);
schedule();
if(signal_pending(current))
break;
set_current_state(TASK_INTERRUPTIBLE);
}
remove_wait_queue(&queues->queue[HostNormCmdQueue].cmdready, &wait);
if (dev->queues)
remove_wait_queue(&dev->queues->queue[HostNormCmdQueue].cmdready, &wait);
dev->aif_thread = 0;
complete_and_exit(&dev->aif_completion, 0);
return 0;
}
drivers/scsi/aacraid/linit.c
View file @ 7d6322b4
......@@ -748,7 +748,8 @@ static int __devinit aac_probe_one(struct pci_dev *pdev,
unique_id++;
}
if (pci_enable_device(pdev))
error = pci_enable_device(pdev);
if (error)
goto out;
if (pci_set_dma_mask(pdev, 0xFFFFFFFFULL) ||
......@@ -772,6 +773,7 @@ static int __devinit aac_probe_one(struct pci_dev *pdev,
shost->irq = pdev->irq;
shost->base = pci_resource_start(pdev, 0);
shost->unique_id = unique_id;
shost->max_cmd_len = 16;
aac = (struct aac_dev *)shost->hostdata;
aac->scsi_host_ptr = shost;
......@@ -799,7 +801,9 @@ static int __devinit aac_probe_one(struct pci_dev *pdev,
goto out_free_fibs;
aac->maximum_num_channels = aac_drivers[index].channels;
aac_get_adapter_info(aac);
error = aac_get_adapter_info(aac);
if (error < 0)
goto out_deinit;
/*
* Lets override negotiations and drop the maximum SG limit to 34
......@@ -927,8 +931,8 @@ static int __init aac_init(void)
printk(KERN_INFO "Adaptec %s driver (%s)\n",
AAC_DRIVERNAME, aac_driver_version);
error = pci_module_init(&aac_pci_driver);
if (error)
error = pci_register_driver(&aac_pci_driver);
if (error < 0)
return error;
aac_cfg_major = register_chrdev( 0, "aac", &aac_cfg_fops);
......
drivers/scsi/aic7xxx/aic7770_osm.c
View file @ 7d6322b4
......@@ -112,6 +112,9 @@ aic7770_remove(struct device *dev)
struct ahc_softc *ahc = dev_get_drvdata(dev);
u_long s;
if (ahc->platform_data && ahc->platform_data->host)
scsi_remove_host(ahc->platform_data->host);
ahc_lock(ahc, &s);
ahc_intr_enable(ahc, FALSE);
ahc_unlock(ahc, &s);
......
drivers/scsi/aic7xxx/aic79xx_osm.c
View file @ 7d6322b4
......@@ -1192,11 +1192,6 @@ ahd_platform_free(struct ahd_softc *ahd)
int i, j;
if (ahd->platform_data != NULL) {
if (ahd->platform_data->host != NULL) {
scsi_remove_host(ahd->platform_data->host);
scsi_host_put(ahd->platform_data->host);
}
/* destroy all of the device and target objects */
for (i = 0; i < AHD_NUM_TARGETS; i++) {
starget = ahd->platform_data->starget[i];
......@@ -1226,6 +1221,9 @@ ahd_platform_free(struct ahd_softc *ahd)
release_mem_region(ahd->platform_data->mem_busaddr,
0x1000);
}
if (ahd->platform_data->host)
scsi_host_put(ahd->platform_data->host);
free(ahd->platform_data, M_DEVBUF);
}
}
......
drivers/scsi/aic7xxx/aic79xx_osm_pci.c
View file @ 7d6322b4
......@@ -95,6 +95,9 @@ ahd_linux_pci_dev_remove(struct pci_dev *pdev)
struct ahd_softc *ahd = pci_get_drvdata(pdev);
u_long s;
if (ahd->platform_data && ahd->platform_data->host)
scsi_remove_host(ahd->platform_data->host);
ahd_lock(ahd, &s);
ahd_intr_enable(ahd, FALSE);
ahd_unlock(ahd, &s);
......
drivers/scsi/aic7xxx/aic7xxx_osm.c
View file @ 7d6322b4
......@@ -1209,11 +1209,6 @@ ahc_platform_free(struct ahc_softc *ahc)
int i, j;
if (ahc->platform_data != NULL) {
if (ahc->platform_data->host != NULL) {
scsi_remove_host(ahc->platform_data->host);
scsi_host_put(ahc->platform_data->host);
}
/* destroy all of the device and target objects */
for (i = 0; i < AHC_NUM_TARGETS; i++) {
starget = ahc->platform_data->starget[i];
......@@ -1242,6 +1237,9 @@ ahc_platform_free(struct ahc_softc *ahc)
0x1000);
}
if (ahc->platform_data->host)
scsi_host_put(ahc->platform_data->host);
free(ahc->platform_data, M_DEVBUF);
}
}
......
drivers/scsi/aic7xxx/aic7xxx_osm_pci.c
View file @ 7d6322b4
......@@ -143,6 +143,9 @@ ahc_linux_pci_dev_remove(struct pci_dev *pdev)
struct ahc_softc *ahc = pci_get_drvdata(pdev);
u_long s;
if (ahc->platform_data && ahc->platform_data->host)
scsi_remove_host(ahc->platform_data->host);
ahc_lock(ahc, &s);
ahc_intr_enable(ahc, FALSE);
ahc_unlock(ahc, &s);
......
drivers/scsi/hosts.c
View file @ 7d6322b4
......@@ -176,6 +176,7 @@ void scsi_remove_host(struct Scsi_Host *shost)
transport_unregister_device(&shost->shost_gendev);
class_device_unregister(&shost->shost_classdev);
device_del(&shost->shost_gendev);
scsi_proc_hostdir_rm(shost->hostt);
}
EXPORT_SYMBOL(scsi_remove_host);
......@@ -262,7 +263,6 @@ static void scsi_host_dev_release(struct device *dev)
if (shost->work_q)
destroy_workqueue(shost->work_q);
scsi_proc_hostdir_rm(shost->hostt);
scsi_destroy_command_freelist(shost);
kfree(shost->shost_data);
......
drivers/scsi/lpfc/lpfc_attr.c
View file @ 7d6322b4
......@@ -973,10 +973,10 @@ lpfc_get_host_fabric_name (struct Scsi_Host *shost)
if ((phba->fc_flag & FC_FABRIC) ||
((phba->fc_topology == TOPOLOGY_LOOP) &&
(phba->fc_flag & FC_PUBLIC_LOOP)))
node_name = wwn_to_u64(phba->fc_fabparam.nodeName.wwn);
node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn);
else
/* fabric is local port if there is no F/FL_Port */
node_name = wwn_to_u64(phba->fc_nodename.wwn);
node_name = wwn_to_u64(phba->fc_nodename.u.wwn);
spin_unlock_irq(shost->host_lock);
......@@ -1110,7 +1110,7 @@ lpfc_get_starget_node_name(struct scsi_target *starget)
/* Search the mapped list for this target ID */
list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
if (starget->id == ndlp->nlp_sid) {
node_name = wwn_to_u64(ndlp->nlp_nodename.wwn);
node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
break;
}
}
......@@ -1131,7 +1131,7 @@ lpfc_get_starget_port_name(struct scsi_target *starget)
/* Search the mapped list for this target ID */
list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
if (starget->id == ndlp->nlp_sid) {
port_name = wwn_to_u64(ndlp->nlp_portname.wwn);
port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
break;
}
}
......
drivers/scsi/lpfc/lpfc_hbadisc.c
View file @ 7d6322b4
......@@ -1019,8 +1019,8 @@ lpfc_register_remote_port(struct lpfc_hba * phba,
struct fc_rport_identifiers rport_ids;
/* Remote port has reappeared. Re-register w/ FC transport */
rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.wwn);
rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.wwn);
rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
rport_ids.port_id = ndlp->nlp_DID;
rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
if (ndlp->nlp_type & NLP_FCP_TARGET)
......
drivers/scsi/lpfc/lpfc_hw.h
View file @ 7d6322b4
......@@ -280,9 +280,9 @@ struct lpfc_name {
#define NAME_CCITT_GR_TYPE 0xE
uint8_t IEEEextLsb; /* FC Word 0, bit 16:23, IEEE extended Lsb */
uint8_t IEEE[6]; /* FC IEEE address */
};
} s;
uint8_t wwn[8];
};
} u;
};
struct csp {
......
drivers/scsi/lpfc/lpfc_init.c
View file @ 7d6322b4
......@@ -285,7 +285,7 @@ lpfc_config_port_post(struct lpfc_hba * phba)
if (phba->SerialNumber[0] == 0) {
uint8_t *outptr;
outptr = (uint8_t *) & phba->fc_nodename.IEEE[0];
outptr = &phba->fc_nodename.u.s.IEEE[0];
for (i = 0; i < 12; i++) {
status = *outptr++;
j = ((status & 0xf0) >> 4);
......@@ -1523,8 +1523,8 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
* Must done after lpfc_sli_hba_setup()
*/
fc_host_node_name(host) = wwn_to_u64(phba->fc_nodename.wwn);
fc_host_port_name(host) = wwn_to_u64(phba->fc_portname.wwn);
fc_host_node_name(host) = wwn_to_u64(phba->fc_nodename.u.wwn);
fc_host_port_name(host) = wwn_to_u64(phba->fc_portname.u.wwn);
fc_host_supported_classes(host) = FC_COS_CLASS3;
memset(fc_host_supported_fc4s(host), 0,
......
drivers/scsi/megaraid.c
View file @ 7d6322b4
......@@ -621,8 +621,6 @@ mega_build_cmd(adapter_t *adapter, Scsi_Cmnd *cmd, int *busy)
if(islogical) {
switch (cmd->cmnd[0]) {
case TEST_UNIT_READY:
memset(cmd->request_buffer, 0, cmd->request_bufflen);
#if MEGA_HAVE_CLUSTERING
/*
* Do we support clustering and is the support enabled
......@@ -652,11 +650,28 @@ mega_build_cmd(adapter_t *adapter, Scsi_Cmnd *cmd, int *busy)
return NULL;
#endif
case MODE_SENSE:
case MODE_SENSE: {
char *buf;
if (cmd->use_sg) {
struct scatterlist *sg;
sg = (struct scatterlist *)cmd->request_buffer;
buf = kmap_atomic(sg->page, KM_IRQ0) +
sg->offset;
} else
buf = cmd->request_buffer;
memset(cmd->request_buffer, 0, cmd->cmnd[4]);
if (cmd->use_sg) {
struct scatterlist *sg;
sg = (struct scatterlist *)cmd->request_buffer;
kunmap_atomic(buf - sg->offset, KM_IRQ0);
}
cmd->result = (DID_OK << 16);
cmd->scsi_done(cmd);
return NULL;
}
case READ_CAPACITY:
case INQUIRY:
......@@ -1685,14 +1700,23 @@ mega_rundoneq (adapter_t *adapter)
static void
mega_free_scb(adapter_t *adapter, scb_t *scb)
{
unsigned long length;
switch( scb->dma_type ) {
case MEGA_DMA_TYPE_NONE:
break;
case MEGA_BULK_DATA:
if (scb->cmd->use_sg == 0)
length = scb->cmd->request_bufflen;
else {
struct scatterlist *sgl =
(struct scatterlist *)scb->cmd->request_buffer;
length = sgl->length;
}
pci_unmap_page(adapter->dev, scb->dma_h_bulkdata,
scb->cmd->request_bufflen, scb->dma_direction);
length, scb->dma_direction);
break;
case MEGA_SGLIST:
......@@ -1741,6 +1765,7 @@ mega_build_sglist(adapter_t *adapter, scb_t *scb, u32 *buf, u32 *len)
struct scatterlist *sgl;
struct page *page;
unsigned long offset;
unsigned int length;
Scsi_Cmnd *cmd;
int sgcnt;
int idx;
......@@ -1748,14 +1773,23 @@ mega_build_sglist(adapter_t *adapter, scb_t *scb, u32 *buf, u32 *len)
cmd = scb->cmd;
/* Scatter-gather not used */
if( !cmd->use_sg ) {
if( cmd->use_sg == 0 || (cmd->use_sg == 1 &&
!adapter->has_64bit_addr)) {
if (cmd->use_sg == 0) {
page = virt_to_page(cmd->request_buffer);
offset = offset_in_page(cmd->request_buffer);
length = cmd->request_bufflen;
} else {
sgl = (struct scatterlist *)cmd->request_buffer;
page = sgl->page;
offset = sgl->offset;
length = sgl->length;
}
scb->dma_h_bulkdata = pci_map_page(adapter->dev,
page, offset,
cmd->request_bufflen,
length,
scb->dma_direction);
scb->dma_type = MEGA_BULK_DATA;
......@@ -1765,14 +1799,14 @@ mega_build_sglist(adapter_t *adapter, scb_t *scb, u32 *buf, u32 *len)
*/
if( adapter->has_64bit_addr ) {
scb->sgl64[0].address = scb->dma_h_bulkdata;
scb->sgl64[0].length = cmd->request_bufflen;
scb->sgl64[0].length = length;
*buf = (u32)scb->sgl_dma_addr;
*len = (u32)cmd->request_bufflen;
*len = (u32)length;
return 1;
}
else {
*buf = (u32)scb->dma_h_bulkdata;
*len = (u32)cmd->request_bufflen;
*len = (u32)length;
}
return 0;
}
......@@ -1791,27 +1825,23 @@ mega_build_sglist(adapter_t *adapter, scb_t *scb, u32 *buf, u32 *len)
if( sgcnt > adapter->sglen ) BUG();
*len = 0;
for( idx = 0; idx < sgcnt; idx++, sgl++ ) {
if( adapter->has_64bit_addr ) {
scb->sgl64[idx].address = sg_dma_address(sgl);
scb->sgl64[idx].length = sg_dma_len(sgl);
*len += scb->sgl64[idx].length = sg_dma_len(sgl);
}
else {
scb->sgl[idx].address = sg_dma_address(sgl);
scb->sgl[idx].length = sg_dma_len(sgl);
*len += scb->sgl[idx].length = sg_dma_len(sgl);
}
}
/* Reset pointer and length fields */
*buf = scb->sgl_dma_addr;
/*
* For passthru command, dataxferlen must be set, even for commands
* with a sg list
*/
*len = (u32)cmd->request_bufflen;
/* Return count of SG requests */
return sgcnt;
}
......
drivers/scsi/megaraid/Kconfig.megaraid
View file @ 7d6322b4
......@@ -76,3 +76,12 @@ config MEGARAID_LEGACY
To compile this driver as a module, choose M here: the
module will be called megaraid
endif
config MEGARAID_SAS
tristate "LSI Logic MegaRAID SAS RAID Module"
depends on PCI && SCSI
help
Module for LSI Logic's SAS based RAID controllers.
To compile this driver as a module, choose 'm' here.
Module will be called megaraid_sas
drivers/scsi/megaraid/Makefile
View file @ 7d6322b4
obj-$(CONFIG_MEGARAID_MM) += megaraid_mm.o
obj-$(CONFIG_MEGARAID_MAILBOX) += megaraid_mbox.o
obj-$(CONFIG_MEGARAID_SAS) += megaraid_sas.o
drivers/scsi/megaraid/megaraid_sas.c 0 → 100644
View file @ 7d6322b4
/*
*
* Linux MegaRAID driver for SAS based RAID controllers
*
* Copyright (c) 2003-2005 LSI Logic Corporation.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*
* FILE : megaraid_sas.c
* Version : v00.00.02.00-rc4
*
* Authors:
* Sreenivas Bagalkote <Sreenivas.Bagalkote@lsil.com>
* Sumant Patro <Sumant.Patro@lsil.com>
*
* List of supported controllers
*
* OEM Product Name VID DID SSVID SSID
* --- ------------ --- --- ---- ----
*/
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/pci.h>
#include <linux/list.h>
#include <linux/version.h>
#include <linux/moduleparam.h>
#include <linux/module.h>
#include <linux/spinlock.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/uio.h>
#include <asm/uaccess.h>
#include <linux/compat.h>
#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include "megaraid_sas.h"
MODULE_LICENSE("GPL");
MODULE_VERSION(MEGASAS_VERSION);
MODULE_AUTHOR("sreenivas.bagalkote@lsil.com");
MODULE_DESCRIPTION("LSI Logic MegaRAID SAS Driver");
/*
* PCI ID table for all supported controllers
*/
static struct pci_device_id megasas_pci_table[] = {
{
PCI_VENDOR_ID_LSI_LOGIC,
PCI_DEVICE_ID_LSI_SAS1064R,
PCI_ANY_ID,
PCI_ANY_ID,
},
{
PCI_VENDOR_ID_DELL,
PCI_DEVICE_ID_DELL_PERC5,
PCI_ANY_ID,
PCI_ANY_ID,
},
{0} /* Terminating entry */
};
MODULE_DEVICE_TABLE(pci, megasas_pci_table);
static int megasas_mgmt_majorno;
static struct megasas_mgmt_info megasas_mgmt_info;
static struct fasync_struct *megasas_async_queue;
static DECLARE_MUTEX(megasas_async_queue_mutex);
/**
* megasas_get_cmd - Get a command from the free pool
* @instance: Adapter soft state
*
* Returns a free command from the pool
*/
static inline struct megasas_cmd *megasas_get_cmd(struct megasas_instance
*instance)
{
unsigned long flags;
struct megasas_cmd *cmd = NULL;
spin_lock_irqsave(&instance->cmd_pool_lock, flags);
if (!list_empty(&instance->cmd_pool)) {
cmd = list_entry((&instance->cmd_pool)->next,
struct megasas_cmd, list);
list_del_init(&cmd->list);
} else {
printk(KERN_ERR "megasas: Command pool empty!\n");
}
spin_unlock_irqrestore(&instance->cmd_pool_lock, flags);
return cmd;
}
/**
* megasas_return_cmd - Return a cmd to free command pool
* @instance: Adapter soft state
* @cmd: Command packet to be returned to free command pool
*/
static inline void
megasas_return_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd)
{
unsigned long flags;
spin_lock_irqsave(&instance->cmd_pool_lock, flags);
cmd->scmd = NULL;
list_add_tail(&cmd->list, &instance->cmd_pool);
spin_unlock_irqrestore(&instance->cmd_pool_lock, flags);
}
/**
* megasas_enable_intr - Enables interrupts
* @regs: MFI register set
*/
static inline void
megasas_enable_intr(struct megasas_register_set __iomem * regs)
{
writel(1, &(regs)->outbound_intr_mask);
/* Dummy readl to force pci flush */
readl(&regs->outbound_intr_mask);
}
/**
* megasas_disable_intr - Disables interrupts
* @regs: MFI register set
*/
static inline void
megasas_disable_intr(struct megasas_register_set __iomem * regs)
{
u32 mask = readl(&regs->outbound_intr_mask) & (~0x00000001);
writel(mask, &regs->outbound_intr_mask);
/* Dummy readl to force pci flush */
readl(&regs->outbound_intr_mask);
}
/**
* megasas_issue_polled - Issues a polling command
* @instance: Adapter soft state
* @cmd: Command packet to be issued
*
* For polling, MFI requires the cmd_status to be set to 0xFF before posting.
*/
static int
megasas_issue_polled(struct megasas_instance *instance, struct megasas_cmd *cmd)
{
int i;
u32 msecs = MFI_POLL_TIMEOUT_SECS * 1000;
struct megasas_header *frame_hdr = &cmd->frame->hdr;
frame_hdr->cmd_status = 0xFF;
frame_hdr->flags |= MFI_FRAME_DONT_POST_IN_REPLY_QUEUE;
/*
* Issue the frame using inbound queue port
*/
writel(cmd->frame_phys_addr >> 3,
&instance->reg_set->inbound_queue_port);
/*
* Wait for cmd_status to change
*/
for (i = 0; (i < msecs) && (frame_hdr->cmd_status == 0xff); i++) {
rmb();
msleep(1);
}
if (frame_hdr->cmd_status == 0xff)
return -ETIME;
return 0;
}
/**
* megasas_issue_blocked_cmd - Synchronous wrapper around regular FW cmds
* @instance: Adapter soft state
* @cmd: Command to be issued
*
* This function waits on an event for the command to be returned from ISR.
* Used to issue ioctl commands.
*/
static int
megasas_issue_blocked_cmd(struct megasas_instance *instance,
struct megasas_cmd *cmd)
{
cmd->cmd_status = ENODATA;
writel(cmd->frame_phys_addr >> 3,
&instance->reg_set->inbound_queue_port);
wait_event(instance->int_cmd_wait_q, (cmd->cmd_status != ENODATA));
return 0;
}
/**
* megasas_issue_blocked_abort_cmd - Aborts previously issued cmd
* @instance: Adapter soft state
* @cmd_to_abort: Previously issued cmd to be aborted
*
* MFI firmware can abort previously issued AEN comamnd (automatic event
* notification). The megasas_issue_blocked_abort_cmd() issues such abort
* cmd and blocks till it is completed.
*/
static int
megasas_issue_blocked_abort_cmd(struct megasas_instance *instance,
struct megasas_cmd *cmd_to_abort)
{
struct megasas_cmd *cmd;
struct megasas_abort_frame *abort_fr;
cmd = megasas_get_cmd(instance);
if (!cmd)
return -1;
abort_fr = &cmd->frame->abort;
/*
* Prepare and issue the abort frame
*/
abort_fr->cmd = MFI_CMD_ABORT;
abort_fr->cmd_status = 0xFF;
abort_fr->flags = 0;
abort_fr->abort_context = cmd_to_abort->index;
abort_fr->abort_mfi_phys_addr_lo = cmd_to_abort->frame_phys_addr;
abort_fr->abort_mfi_phys_addr_hi = 0;
cmd->sync_cmd = 1;
cmd->cmd_status = 0xFF;
writel(cmd->frame_phys_addr >> 3,
&instance->reg_set->inbound_queue_port);
/*
* Wait for this cmd to complete
*/
wait_event(instance->abort_cmd_wait_q, (cmd->cmd_status != 0xFF));
megasas_return_cmd(instance, cmd);
return 0;
}
/**
* megasas_make_sgl32 - Prepares 32-bit SGL
* @instance: Adapter soft state
* @scp: SCSI command from the mid-layer
* @mfi_sgl: SGL to be filled in
*
* If successful, this function returns the number of SG elements. Otherwise,
* it returnes -1.
*/
static inline int
megasas_make_sgl32(struct megasas_instance *instance, struct scsi_cmnd *scp,
union megasas_sgl *mfi_sgl)
{
int i;
int sge_count;
struct scatterlist *os_sgl;
/*
* Return 0 if there is no data transfer
*/
if (!scp->request_buffer || !scp->request_bufflen)
return 0;
if (!scp->use_sg) {
mfi_sgl->sge32[0].phys_addr = pci_map_single(instance->pdev,
scp->
request_buffer,
scp->
request_bufflen,
scp->
sc_data_direction);
mfi_sgl->sge32[0].length = scp->request_bufflen;
return 1;
}
os_sgl = (struct scatterlist *)scp->request_buffer;
sge_count = pci_map_sg(instance->pdev, os_sgl, scp->use_sg,
scp->sc_data_direction);
for (i = 0; i < sge_count; i++, os_sgl++) {
mfi_sgl->sge32[i].length = sg_dma_len(os_sgl);
mfi_sgl->sge32[i].phys_addr = sg_dma_address(os_sgl);
}
return sge_count;
}
/**
* megasas_make_sgl64 - Prepares 64-bit SGL
* @instance: Adapter soft state
* @scp: SCSI command from the mid-layer
* @mfi_sgl: SGL to be filled in
*
* If successful, this function returns the number of SG elements. Otherwise,
* it returnes -1.
*/
static inline int
megasas_make_sgl64(struct megasas_instance *instance, struct scsi_cmnd *scp,
union megasas_sgl *mfi_sgl)
{
int i;
int sge_count;
struct scatterlist *os_sgl;
/*
* Return 0 if there is no data transfer
*/
if (!scp->request_buffer || !scp->request_bufflen)
return 0;
if (!scp->use_sg) {
mfi_sgl->sge64[0].phys_addr = pci_map_single(instance->pdev,
scp->
request_buffer,
scp->
request_bufflen,
scp->
sc_data_direction);
mfi_sgl->sge64[0].length = scp->request_bufflen;
return 1;
}
os_sgl = (struct scatterlist *)scp->request_buffer;
sge_count = pci_map_sg(instance->pdev, os_sgl, scp->use_sg,
scp->sc_data_direction);
for (i = 0; i < sge_count; i++, os_sgl++) {
mfi_sgl->sge64[i].length = sg_dma_len(os_sgl);
mfi_sgl->sge64[i].phys_addr = sg_dma_address(os_sgl);
}
return sge_count;
}
/**
* megasas_build_dcdb - Prepares a direct cdb (DCDB) command
* @instance: Adapter soft state
* @scp: SCSI command
* @cmd: Command to be prepared in
*
* This function prepares CDB commands. These are typcially pass-through
* commands to the devices.
*/
static inline int
megasas_build_dcdb(struct megasas_instance *instance, struct scsi_cmnd *scp,
struct megasas_cmd *cmd)
{
u32 sge_sz;
int sge_bytes;
u32 is_logical;
u32 device_id;
u16 flags = 0;
struct megasas_pthru_frame *pthru;
is_logical = MEGASAS_IS_LOGICAL(scp);
device_id = MEGASAS_DEV_INDEX(instance, scp);
pthru = (struct megasas_pthru_frame *)cmd->frame;
if (scp->sc_data_direction == PCI_DMA_TODEVICE)
flags = MFI_FRAME_DIR_WRITE;
else if (scp->sc_data_direction == PCI_DMA_FROMDEVICE)
flags = MFI_FRAME_DIR_READ;
else if (scp->sc_data_direction == PCI_DMA_NONE)
flags = MFI_FRAME_DIR_NONE;
/*
* Prepare the DCDB frame
*/
pthru->cmd = (is_logical) ? MFI_CMD_LD_SCSI_IO : MFI_CMD_PD_SCSI_IO;
pthru->cmd_status = 0x0;
pthru->scsi_status = 0x0;
pthru->target_id = device_id;
pthru->lun = scp->device->lun;
pthru->cdb_len = scp->cmd_len;
pthru->timeout = 0;
pthru->flags = flags;
pthru->data_xfer_len = scp->request_bufflen;
memcpy(pthru->cdb, scp->cmnd, scp->cmd_len);
/*
* Construct SGL
*/
sge_sz = (IS_DMA64) ? sizeof(struct megasas_sge64) :
sizeof(struct megasas_sge32);
if (IS_DMA64) {
pthru->flags |= MFI_FRAME_SGL64;
pthru->sge_count = megasas_make_sgl64(instance, scp,
&pthru->sgl);
} else
pthru->sge_count = megasas_make_sgl32(instance, scp,
&pthru->sgl);
/*
* Sense info specific
*/
pthru->sense_len = SCSI_SENSE_BUFFERSIZE;
pthru->sense_buf_phys_addr_hi = 0;
pthru->sense_buf_phys_addr_lo = cmd->sense_phys_addr;
sge_bytes = sge_sz * pthru->sge_count;
/*
* Compute the total number of frames this command consumes. FW uses
* this number to pull sufficient number of frames from host memory.
*/
cmd->frame_count = (sge_bytes / MEGAMFI_FRAME_SIZE) +
((sge_bytes % MEGAMFI_FRAME_SIZE) ? 1 : 0) + 1;
if (cmd->frame_count > 7)
cmd->frame_count = 8;
return cmd->frame_count;
}
/**
* megasas_build_ldio - Prepares IOs to logical devices
* @instance: Adapter soft state
* @scp: SCSI command
* @cmd: Command to to be prepared
*
* Frames (and accompanying SGLs) for regular SCSI IOs use this function.
*/
static inline int
megasas_build_ldio(struct megasas_instance *instance, struct scsi_cmnd *scp,
struct megasas_cmd *cmd)
{
u32 sge_sz;
int sge_bytes;
u32 device_id;
u8 sc = scp->cmnd[0];
u16 flags = 0;
struct megasas_io_frame *ldio;
device_id = MEGASAS_DEV_INDEX(instance, scp);
ldio = (struct megasas_io_frame *)cmd->frame;
if (scp->sc_data_direction == PCI_DMA_TODEVICE)
flags = MFI_FRAME_DIR_WRITE;
else if (scp->sc_data_direction == PCI_DMA_FROMDEVICE)
flags = MFI_FRAME_DIR_READ;
/*
* Preare the Logical IO frame: 2nd bit is zero for all read cmds
*/
ldio->cmd = (sc & 0x02) ? MFI_CMD_LD_WRITE : MFI_CMD_LD_READ;
ldio->cmd_status = 0x0;
ldio->scsi_status = 0x0;
ldio->target_id = device_id;
ldio->timeout = 0;
ldio->reserved_0 = 0;
ldio->pad_0 = 0;
ldio->flags = flags;
ldio->start_lba_hi = 0;
ldio->access_byte = (scp->cmd_len != 6) ? scp->cmnd[1] : 0;
/*
* 6-byte READ(0x08) or WRITE(0x0A) cdb
*/
if (scp->cmd_len == 6) {
ldio->lba_count = (u32) scp->cmnd[4];
ldio->start_lba_lo = ((u32) scp->cmnd[1] << 16) |
((u32) scp->cmnd[2] << 8) | (u32) scp->cmnd[3];
ldio->start_lba_lo &= 0x1FFFFF;
}
/*
* 10-byte READ(0x28) or WRITE(0x2A) cdb
*/
else if (scp->cmd_len == 10) {
ldio->lba_count = (u32) scp->cmnd[8] |
((u32) scp->cmnd[7] << 8);
ldio->start_lba_lo = ((u32) scp->cmnd[2] << 24) |
((u32) scp->cmnd[3] << 16) |
((u32) scp->cmnd[4] << 8) | (u32) scp->cmnd[5];
}
/*
* 12-byte READ(0xA8) or WRITE(0xAA) cdb
*/
else if (scp->cmd_len == 12) {
ldio->lba_count = ((u32) scp->cmnd[6] << 24) |
((u32) scp->cmnd[7] << 16) |
((u32) scp->cmnd[8] << 8) | (u32) scp->cmnd[9];
ldio->start_lba_lo = ((u32) scp->cmnd[2] << 24) |
((u32) scp->cmnd[3] << 16) |
((u32) scp->cmnd[4] << 8) | (u32) scp->cmnd[5];
}
/*
* 16-byte READ(0x88) or WRITE(0x8A) cdb
*/
else if (scp->cmd_len == 16) {
ldio->lba_count = ((u32) scp->cmnd[10] << 24) |
((u32) scp->cmnd[11] << 16) |
((u32) scp->cmnd[12] << 8) | (u32) scp->cmnd[13];
ldio->start_lba_lo = ((u32) scp->cmnd[6] << 24) |
((u32) scp->cmnd[7] << 16) |
((u32) scp->cmnd[8] << 8) | (u32) scp->cmnd[9];
ldio->start_lba_hi = ((u32) scp->cmnd[2] << 24) |
((u32) scp->cmnd[3] << 16) |
((u32) scp->cmnd[4] << 8) | (u32) scp->cmnd[5];
}
/*
* Construct SGL
*/
sge_sz = (IS_DMA64) ? sizeof(struct megasas_sge64) :
sizeof(struct megasas_sge32);
if (IS_DMA64) {
ldio->flags |= MFI_FRAME_SGL64;
ldio->sge_count = megasas_make_sgl64(instance, scp, &ldio->sgl);
} else
ldio->sge_count = megasas_make_sgl32(instance, scp, &ldio->sgl);
/*
* Sense info specific
*/
ldio->sense_len = SCSI_SENSE_BUFFERSIZE;
ldio->sense_buf_phys_addr_hi = 0;
ldio->sense_buf_phys_addr_lo = cmd->sense_phys_addr;
sge_bytes = sge_sz * ldio->sge_count;
cmd->frame_count = (sge_bytes / MEGAMFI_FRAME_SIZE) +
((sge_bytes % MEGAMFI_FRAME_SIZE) ? 1 : 0) + 1;
if (cmd->frame_count > 7)
cmd->frame_count = 8;
return cmd->frame_count;
}
/**
* megasas_build_cmd - Prepares a command packet
* @instance: Adapter soft state
* @scp: SCSI command
* @frame_count: [OUT] Number of frames used to prepare this command
*/
static inline struct megasas_cmd *megasas_build_cmd(struct megasas_instance
*instance,
struct scsi_cmnd *scp,
int *frame_count)
{
u32 logical_cmd;
struct megasas_cmd *cmd;
/*
* Find out if this is logical or physical drive command.
*/
logical_cmd = MEGASAS_IS_LOGICAL(scp);
/*
* Logical drive command
*/
if (logical_cmd) {
if (scp->device->id >= MEGASAS_MAX_LD) {
scp->result = DID_BAD_TARGET << 16;
return NULL;
}
switch (scp->cmnd[0]) {
case READ_10:
case WRITE_10:
case READ_12:
case WRITE_12:
case READ_6:
case WRITE_6:
case READ_16:
case WRITE_16:
/*
* Fail for LUN > 0
*/
if (scp->device->lun) {
scp->result = DID_BAD_TARGET << 16;
return NULL;
}
cmd = megasas_get_cmd(instance);
if (!cmd) {
scp->result = DID_IMM_RETRY << 16;
return NULL;
}
*frame_count = megasas_build_ldio(instance, scp, cmd);
if (!(*frame_count)) {
megasas_return_cmd(instance, cmd);
return NULL;
}
return cmd;
default:
/*
* Fail for LUN > 0
*/
if (scp->device->lun) {
scp->result = DID_BAD_TARGET << 16;
return NULL;
}
cmd = megasas_get_cmd(instance);
if (!cmd) {
scp->result = DID_IMM_RETRY << 16;
return NULL;
}
*frame_count = megasas_build_dcdb(instance, scp, cmd);
if (!(*frame_count)) {
megasas_return_cmd(instance, cmd);
return NULL;
}
return cmd;
}
} else {
cmd = megasas_get_cmd(instance);
if (!cmd) {
scp->result = DID_IMM_RETRY << 16;
return NULL;
}
*frame_count = megasas_build_dcdb(instance, scp, cmd);
if (!(*frame_count)) {
megasas_return_cmd(instance, cmd);
return NULL;
}
return cmd;
}
return NULL;
}
/**
* megasas_queue_command - Queue entry point
* @scmd: SCSI command to be queued
* @done: Callback entry point
*/
static int
megasas_queue_command(struct scsi_cmnd *scmd, void (*done) (struct scsi_cmnd *))
{
u32 frame_count;
unsigned long flags;
struct megasas_cmd *cmd;
struct megasas_instance *instance;
instance = (struct megasas_instance *)
scmd->device->host->hostdata;
scmd->scsi_done = done;
scmd->result = 0;
cmd = megasas_build_cmd(instance, scmd, &frame_count);
if (!cmd) {
done(scmd);
return 0;
}
cmd->scmd = scmd;
scmd->SCp.ptr = (char *)cmd;
scmd->SCp.sent_command = jiffies;
/*
* Issue the command to the FW
*/
spin_lock_irqsave(&instance->instance_lock, flags);
instance->fw_outstanding++;
spin_unlock_irqrestore(&instance->instance_lock, flags);
writel(((cmd->frame_phys_addr >> 3) | (cmd->frame_count - 1)),
&instance->reg_set->inbound_queue_port);
return 0;
}
/**
* megasas_wait_for_outstanding - Wait for all outstanding cmds
* @instance: Adapter soft state
*
* This function waits for upto MEGASAS_RESET_WAIT_TIME seconds for FW to
* complete all its outstanding commands. Returns error if one or more IOs
* are pending after this time period. It also marks the controller dead.
*/
static int megasas_wait_for_outstanding(struct megasas_instance *instance)
{
int i;
u32 wait_time = MEGASAS_RESET_WAIT_TIME;
for (i = 0; i < wait_time; i++) {
if (!instance->fw_outstanding)
break;
if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) {
printk(KERN_NOTICE "megasas: [%2d]waiting for %d "
"commands to complete\n", i,
instance->fw_outstanding);
}
msleep(1000);
}
if (instance->fw_outstanding) {
instance->hw_crit_error = 1;
return FAILED;
}
return SUCCESS;
}
/**
* megasas_generic_reset - Generic reset routine
* @scmd: Mid-layer SCSI command
*
* This routine implements a generic reset handler for device, bus and host
* reset requests. Device, bus and host specific reset handlers can use this
* function after they do their specific tasks.
*/
static int megasas_generic_reset(struct scsi_cmnd *scmd)
{
int ret_val;
struct megasas_instance *instance;
instance = (struct megasas_instance *)scmd->device->host->hostdata;
printk(KERN_NOTICE "megasas: RESET -%ld cmd=%x <c=%d t=%d l=%d>\n",
scmd->serial_number, scmd->cmnd[0], scmd->device->channel,
scmd->device->id, scmd->device->lun);
if (instance->hw_crit_error) {
printk(KERN_ERR "megasas: cannot recover from previous reset "
"failures\n");
return FAILED;
}
spin_unlock(scmd->device->host->host_lock);
ret_val = megasas_wait_for_outstanding(instance);
if (ret_val == SUCCESS)
printk(KERN_NOTICE "megasas: reset successful \n");
else
printk(KERN_ERR "megasas: failed to do reset\n");
spin_lock(scmd->device->host->host_lock);
return ret_val;
}
static enum scsi_eh_timer_return megasas_reset_timer(struct scsi_cmnd *scmd)
{
unsigned long seconds;
if (scmd->SCp.ptr) {
seconds = (jiffies - scmd->SCp.sent_command) / HZ;
if (seconds < 90) {
return EH_RESET_TIMER;
} else {
return EH_NOT_HANDLED;
}
}
return EH_HANDLED;
}
/**
* megasas_reset_device - Device reset handler entry point
*/
static int megasas_reset_device(struct scsi_cmnd *scmd)
{
int ret;
/*
* First wait for all commands to complete
*/
ret = megasas_generic_reset(scmd);
return ret;
}
/**
* megasas_reset_bus_host - Bus & host reset handler entry point
*/
static int megasas_reset_bus_host(struct scsi_cmnd *scmd)
{
int ret;
/*
* Frist wait for all commands to complete
*/
ret = megasas_generic_reset(scmd);
return ret;
}
/**
* megasas_service_aen - Processes an event notification
* @instance: Adapter soft state
* @cmd: AEN command completed by the ISR
*
* For AEN, driver sends a command down to FW that is held by the FW till an
* event occurs. When an event of interest occurs, FW completes the command
* that it was previously holding.
*
* This routines sends SIGIO signal to processes that have registered with the
* driver for AEN.
*/
static void
megasas_service_aen(struct megasas_instance *instance, struct megasas_cmd *cmd)
{
/*
* Don't signal app if it is just an aborted previously registered aen
*/
if (!cmd->abort_aen)
kill_fasync(&megasas_async_queue, SIGIO, POLL_IN);
else
cmd->abort_aen = 0;
instance->aen_cmd = NULL;
megasas_return_cmd(instance, cmd);
}
/*
* Scsi host template for megaraid_sas driver
*/
static struct scsi_host_template megasas_template = {
.module = THIS_MODULE,
.name = "LSI Logic SAS based MegaRAID driver",
.proc_name = "megaraid_sas",
.queuecommand = megasas_queue_command,
.eh_device_reset_handler = megasas_reset_device,
.eh_bus_reset_handler = megasas_reset_bus_host,
.eh_host_reset_handler = megasas_reset_bus_host,
.eh_timed_out = megasas_reset_timer,
.use_clustering = ENABLE_CLUSTERING,
};
/**
* megasas_complete_int_cmd - Completes an internal command
* @instance: Adapter soft state
* @cmd: Command to be completed
*
* The megasas_issue_blocked_cmd() function waits for a command to complete
* after it issues a command. This function wakes up that waiting routine by
* calling wake_up() on the wait queue.
*/
static void
megasas_complete_int_cmd(struct megasas_instance *instance,
struct megasas_cmd *cmd)
{
cmd->cmd_status = cmd->frame->io.cmd_status;
if (cmd->cmd_status == ENODATA) {
cmd->cmd_status = 0;
}
wake_up(&instance->int_cmd_wait_q);
}
/**
* megasas_complete_abort - Completes aborting a command
* @instance: Adapter soft state
* @cmd: Cmd that was issued to abort another cmd
*
* The megasas_issue_blocked_abort_cmd() function waits on abort_cmd_wait_q
* after it issues an abort on a previously issued command. This function
* wakes up all functions waiting on the same wait queue.
*/
static void
megasas_complete_abort(struct megasas_instance *instance,
struct megasas_cmd *cmd)
{
if (cmd->sync_cmd) {
cmd->sync_cmd = 0;
cmd->cmd_status = 0;
wake_up(&instance->abort_cmd_wait_q);
}
return;
}
/**
* megasas_unmap_sgbuf - Unmap SG buffers
* @instance: Adapter soft state
* @cmd: Completed command
*/
static inline void
megasas_unmap_sgbuf(struct megasas_instance *instance, struct megasas_cmd *cmd)
{
dma_addr_t buf_h;
u8 opcode;
if (cmd->scmd->use_sg) {
pci_unmap_sg(instance->pdev, cmd->scmd->request_buffer,
cmd->scmd->use_sg, cmd->scmd->sc_data_direction);
return;
}
if (!cmd->scmd->request_bufflen)
return;
opcode = cmd->frame->hdr.cmd;
if ((opcode == MFI_CMD_LD_READ) || (opcode == MFI_CMD_LD_WRITE)) {
if (IS_DMA64)
buf_h = cmd->frame->io.sgl.sge64[0].phys_addr;
else
buf_h = cmd->frame->io.sgl.sge32[0].phys_addr;
} else {
if (IS_DMA64)
buf_h = cmd->frame->pthru.sgl.sge64[0].phys_addr;
else
buf_h = cmd->frame->pthru.sgl.sge32[0].phys_addr;
}
pci_unmap_single(instance->pdev, buf_h, cmd->scmd->request_bufflen,
cmd->scmd->sc_data_direction);
return;
}
/**
* megasas_complete_cmd - Completes a command
* @instance: Adapter soft state
* @cmd: Command to be completed
* @alt_status: If non-zero, use this value as status to
* SCSI mid-layer instead of the value returned
* by the FW. This should be used if caller wants
* an alternate status (as in the case of aborted
* commands)
*/
static inline void
megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd,
u8 alt_status)
{
int exception = 0;
struct megasas_header *hdr = &cmd->frame->hdr;
unsigned long flags;
if (cmd->scmd) {
cmd->scmd->SCp.ptr = (char *)0;
}
switch (hdr->cmd) {
case MFI_CMD_PD_SCSI_IO:
case MFI_CMD_LD_SCSI_IO:
/*
* MFI_CMD_PD_SCSI_IO and MFI_CMD_LD_SCSI_IO could have been
* issued either through an IO path or an IOCTL path. If it
* was via IOCTL, we will send it to internal completion.
*/
if (cmd->sync_cmd) {
cmd->sync_cmd = 0;
megasas_complete_int_cmd(instance, cmd);
break;
}
/*
* Don't export physical disk devices to mid-layer.
*/
if (!MEGASAS_IS_LOGICAL(cmd->scmd) &&
(hdr->cmd_status == MFI_STAT_OK) &&
(cmd->scmd->cmnd[0] == INQUIRY)) {
if (((*(u8 *) cmd->scmd->request_buffer) & 0x1F) ==
TYPE_DISK) {
cmd->scmd->result = DID_BAD_TARGET << 16;
exception = 1;
}
}
case MFI_CMD_LD_READ:
case MFI_CMD_LD_WRITE:
if (alt_status) {
cmd->scmd->result = alt_status << 16;
exception = 1;
}
if (exception) {
spin_lock_irqsave(&instance->instance_lock, flags);
instance->fw_outstanding--;
spin_unlock_irqrestore(&instance->instance_lock, flags);
megasas_unmap_sgbuf(instance, cmd);
cmd->scmd->scsi_done(cmd->scmd);
megasas_return_cmd(instance, cmd);
break;
}
switch (hdr->cmd_status) {
case MFI_STAT_OK:
cmd->scmd->result = DID_OK << 16;
break;
case MFI_STAT_SCSI_IO_FAILED:
case MFI_STAT_LD_INIT_IN_PROGRESS:
cmd->scmd->result =
(DID_ERROR << 16) | hdr->scsi_status;
break;
case MFI_STAT_SCSI_DONE_WITH_ERROR:
cmd->scmd->result = (DID_OK << 16) | hdr->scsi_status;
if (hdr->scsi_status == SAM_STAT_CHECK_CONDITION) {
memset(cmd->scmd->sense_buffer, 0,
SCSI_SENSE_BUFFERSIZE);
memcpy(cmd->scmd->sense_buffer, cmd->sense,
hdr->sense_len);
cmd->scmd->result |= DRIVER_SENSE << 24;
}
break;
case MFI_STAT_LD_OFFLINE:
case MFI_STAT_DEVICE_NOT_FOUND:
cmd->scmd->result = DID_BAD_TARGET << 16;
break;
default:
printk(KERN_DEBUG "megasas: MFI FW status %#x\n",
hdr->cmd_status);
cmd->scmd->result = DID_ERROR << 16;
break;
}
spin_lock_irqsave(&instance->instance_lock, flags);
instance->fw_outstanding--;
spin_unlock_irqrestore(&instance->instance_lock, flags);
megasas_unmap_sgbuf(instance, cmd);
cmd->scmd->scsi_done(cmd->scmd);
megasas_return_cmd(instance, cmd);
break;
case MFI_CMD_SMP:
case MFI_CMD_STP:
case MFI_CMD_DCMD:
/*
* See if got an event notification
*/
if (cmd->frame->dcmd.opcode == MR_DCMD_CTRL_EVENT_WAIT)
megasas_service_aen(instance, cmd);
else
megasas_complete_int_cmd(instance, cmd);
break;
case MFI_CMD_ABORT:
/*
* Cmd issued to abort another cmd returned
*/
megasas_complete_abort(instance, cmd);
break;
default:
printk("megasas: Unknown command completed! [0x%X]\n",
hdr->cmd);
break;
}
}
/**
* megasas_deplete_reply_queue - Processes all completed commands
* @instance: Adapter soft state
* @alt_status: Alternate status to be returned to
* SCSI mid-layer instead of the status
* returned by the FW
*/
static inline int
megasas_deplete_reply_queue(struct megasas_instance *instance, u8 alt_status)
{
u32 status;
u32 producer;
u32 consumer;
u32 context;
struct megasas_cmd *cmd;
/*
* Check if it is our interrupt
*/
status = readl(&instance->reg_set->outbound_intr_status);
if (!(status & MFI_OB_INTR_STATUS_MASK)) {
return IRQ_NONE;
}
/*
* Clear the interrupt by writing back the same value
*/
writel(status, &instance->reg_set->outbound_intr_status);
producer = *instance->producer;
consumer = *instance->consumer;
while (consumer != producer) {
context = instance->reply_queue[consumer];
cmd = instance->cmd_list[context];
megasas_complete_cmd(instance, cmd, alt_status);
consumer++;
if (consumer == (instance->max_fw_cmds + 1)) {
consumer = 0;
}
}
*instance->consumer = producer;
return IRQ_HANDLED;
}
/**
* megasas_isr - isr entry point
*/
static irqreturn_t megasas_isr(int irq, void *devp, struct pt_regs *regs)
{
return megasas_deplete_reply_queue((struct megasas_instance *)devp,
DID_OK);
}
/**
* megasas_transition_to_ready - Move the FW to READY state
* @reg_set: MFI register set
*
* During the initialization, FW passes can potentially be in any one of
* several possible states. If the FW in operational, waiting-for-handshake
* states, driver must take steps to bring it to ready state. Otherwise, it
* has to wait for the ready state.
*/
static int
megasas_transition_to_ready(struct megasas_register_set __iomem * reg_set)
{
int i;
u8 max_wait;
u32 fw_state;
u32 cur_state;
fw_state = readl(&reg_set->outbound_msg_0) & MFI_STATE_MASK;
while (fw_state != MFI_STATE_READY) {
printk(KERN_INFO "megasas: Waiting for FW to come to ready"
" state\n");
switch (fw_state) {
case MFI_STATE_FAULT:
printk(KERN_DEBUG "megasas: FW in FAULT state!!\n");
return -ENODEV;
case MFI_STATE_WAIT_HANDSHAKE:
/*
* Set the CLR bit in inbound doorbell
*/
writel(MFI_INIT_CLEAR_HANDSHAKE,
&reg_set->inbound_doorbell);
max_wait = 2;
cur_state = MFI_STATE_WAIT_HANDSHAKE;
break;
case MFI_STATE_OPERATIONAL:
/*
* Bring it to READY state; assuming max wait 2 secs
*/
megasas_disable_intr(reg_set);
writel(MFI_INIT_READY, &reg_set->inbound_doorbell);
max_wait = 10;
cur_state = MFI_STATE_OPERATIONAL;
break;
case MFI_STATE_UNDEFINED:
/*
* This state should not last for more than 2 seconds
*/
max_wait = 2;
cur_state = MFI_STATE_UNDEFINED;
break;
case MFI_STATE_BB_INIT:
max_wait = 2;
cur_state = MFI_STATE_BB_INIT;
break;
case MFI_STATE_FW_INIT:
max_wait = 20;
cur_state = MFI_STATE_FW_INIT;
break;
case MFI_STATE_FW_INIT_2:
max_wait = 20;
cur_state = MFI_STATE_FW_INIT_2;
break;
case MFI_STATE_DEVICE_SCAN:
max_wait = 20;
cur_state = MFI_STATE_DEVICE_SCAN;
break;
case MFI_STATE_FLUSH_CACHE:
max_wait = 20;
cur_state = MFI_STATE_FLUSH_CACHE;
break;
default:
printk(KERN_DEBUG "megasas: Unknown state 0x%x\n",
fw_state);
return -ENODEV;
}
/*
* The cur_state should not last for more than max_wait secs
*/
for (i = 0; i < (max_wait * 1000); i++) {
fw_state = MFI_STATE_MASK &
readl(&reg_set->outbound_msg_0);
if (fw_state == cur_state) {
msleep(1);
} else
break;
}
/*
* Return error if fw_state hasn't changed after max_wait
*/
if (fw_state == cur_state) {
printk(KERN_DEBUG "FW state [%d] hasn't changed "
"in %d secs\n", fw_state, max_wait);
return -ENODEV;
}
};
return 0;
}
/**
* megasas_teardown_frame_pool - Destroy the cmd frame DMA pool
* @instance: Adapter soft state
*/
static void megasas_teardown_frame_pool(struct megasas_instance *instance)
{
int i;
u32 max_cmd = instance->max_fw_cmds;
struct megasas_cmd *cmd;
if (!instance->frame_dma_pool)
return;
/*
* Return all frames to pool
*/
for (i = 0; i < max_cmd; i++) {
cmd = instance->cmd_list[i];
if (cmd->frame)
pci_pool_free(instance->frame_dma_pool, cmd->frame,
cmd->frame_phys_addr);
if (cmd->sense)
pci_pool_free(instance->sense_dma_pool, cmd->frame,
cmd->sense_phys_addr);
}
/*
* Now destroy the pool itself
*/
pci_pool_destroy(instance->frame_dma_pool);
pci_pool_destroy(instance->sense_dma_pool);
instance->frame_dma_pool = NULL;
instance->sense_dma_pool = NULL;
}
/**
* megasas_create_frame_pool - Creates DMA pool for cmd frames
* @instance: Adapter soft state
*
* Each command packet has an embedded DMA memory buffer that is used for
* filling MFI frame and the SG list that immediately follows the frame. This
* function creates those DMA memory buffers for each command packet by using
* PCI pool facility.
*/
static int megasas_create_frame_pool(struct megasas_instance *instance)
{
int i;
u32 max_cmd;
u32 sge_sz;
u32 sgl_sz;
u32 total_sz;
u32 frame_count;
struct megasas_cmd *cmd;
max_cmd = instance->max_fw_cmds;
/*
* Size of our frame is 64 bytes for MFI frame, followed by max SG
* elements and finally SCSI_SENSE_BUFFERSIZE bytes for sense buffer
*/
sge_sz = (IS_DMA64) ? sizeof(struct megasas_sge64) :
sizeof(struct megasas_sge32);
/*
* Calculated the number of 64byte frames required for SGL
*/
sgl_sz = sge_sz * instance->max_num_sge;
frame_count = (sgl_sz + MEGAMFI_FRAME_SIZE - 1) / MEGAMFI_FRAME_SIZE;
/*
* We need one extra frame for the MFI command
*/
frame_count++;
total_sz = MEGAMFI_FRAME_SIZE * frame_count;
/*
* Use DMA pool facility provided by PCI layer
*/
instance->frame_dma_pool = pci_pool_create("megasas frame pool",
instance->pdev, total_sz, 64,
0);
if (!instance->frame_dma_pool) {
printk(KERN_DEBUG "megasas: failed to setup frame pool\n");
return -ENOMEM;
}
instance->sense_dma_pool = pci_pool_create("megasas sense pool",
instance->pdev, 128, 4, 0);
if (!instance->sense_dma_pool) {
printk(KERN_DEBUG "megasas: failed to setup sense pool\n");
pci_pool_destroy(instance->frame_dma_pool);
instance->frame_dma_pool = NULL;
return -ENOMEM;
}
/*
* Allocate and attach a frame to each of the commands in cmd_list.
* By making cmd->index as the context instead of the &cmd, we can
* always use 32bit context regardless of the architecture
*/
for (i = 0; i < max_cmd; i++) {
cmd = instance->cmd_list[i];
cmd->frame = pci_pool_alloc(instance->frame_dma_pool,
GFP_KERNEL, &cmd->frame_phys_addr);
cmd->sense = pci_pool_alloc(instance->sense_dma_pool,
GFP_KERNEL, &cmd->sense_phys_addr);
/*
* megasas_teardown_frame_pool() takes care of freeing
* whatever has been allocated
*/
if (!cmd->frame || !cmd->sense) {
printk(KERN_DEBUG "megasas: pci_pool_alloc failed \n");
megasas_teardown_frame_pool(instance);
return -ENOMEM;
}
cmd->frame->io.context = cmd->index;
}
return 0;
}
/**
* megasas_free_cmds - Free all the cmds in the free cmd pool
* @instance: Adapter soft state
*/
static void megasas_free_cmds(struct megasas_instance *instance)
{
int i;
/* First free the MFI frame pool */
megasas_teardown_frame_pool(instance);
/* Free all the commands in the cmd_list */
for (i = 0; i < instance->max_fw_cmds; i++)
kfree(instance->cmd_list[i]);
/* Free the cmd_list buffer itself */
kfree(instance->cmd_list);
instance->cmd_list = NULL;
INIT_LIST_HEAD(&instance->cmd_pool);
}
/**
* megasas_alloc_cmds - Allocates the command packets
* @instance: Adapter soft state
*
* Each command that is issued to the FW, whether IO commands from the OS or
* internal commands like IOCTLs, are wrapped in local data structure called
* megasas_cmd. The frame embedded in this megasas_cmd is actually issued to
* the FW.
*
* Each frame has a 32-bit field called context (tag). This context is used
* to get back the megasas_cmd from the frame when a frame gets completed in
* the ISR. Typically the address of the megasas_cmd itself would be used as
* the context. But we wanted to keep the differences between 32 and 64 bit
* systems to the mininum. We always use 32 bit integers for the context. In
* this driver, the 32 bit values are the indices into an array cmd_list.
* This array is used only to look up the megasas_cmd given the context. The
* free commands themselves are maintained in a linked list called cmd_pool.
*/
static int megasas_alloc_cmds(struct megasas_instance *instance)
{
int i;
int j;
u32 max_cmd;
struct megasas_cmd *cmd;
max_cmd = instance->max_fw_cmds;
/*
* instance->cmd_list is an array of struct megasas_cmd pointers.
* Allocate the dynamic array first and then allocate individual
* commands.
*/
instance->cmd_list = kmalloc(sizeof(struct megasas_cmd *) * max_cmd,
GFP_KERNEL);
if (!instance->cmd_list) {
printk(KERN_DEBUG "megasas: out of memory\n");
return -ENOMEM;
}
memset(instance->cmd_list, 0, sizeof(struct megasas_cmd *) * max_cmd);
for (i = 0; i < max_cmd; i++) {
instance->cmd_list[i] = kmalloc(sizeof(struct megasas_cmd),
GFP_KERNEL);
if (!instance->cmd_list[i]) {
for (j = 0; j < i; j++)
kfree(instance->cmd_list[j]);
kfree(instance->cmd_list);
instance->cmd_list = NULL;
return -ENOMEM;
}
}
/*
* Add all the commands to command pool (instance->cmd_pool)
*/
for (i = 0; i < max_cmd; i++) {
cmd = instance->cmd_list[i];
memset(cmd, 0, sizeof(struct megasas_cmd));
cmd->index = i;
cmd->instance = instance;
list_add_tail(&cmd->list, &instance->cmd_pool);
}
/*
* Create a frame pool and assign one frame to each cmd
*/
if (megasas_create_frame_pool(instance)) {
printk(KERN_DEBUG "megasas: Error creating frame DMA pool\n");
megasas_free_cmds(instance);
}
return 0;
}
/**
* megasas_get_controller_info - Returns FW's controller structure
* @instance: Adapter soft state
* @ctrl_info: Controller information structure
*
* Issues an internal command (DCMD) to get the FW's controller structure.
* This information is mainly used to find out the maximum IO transfer per
* command supported by the FW.
*/
static int
megasas_get_ctrl_info(struct megasas_instance *instance,
struct megasas_ctrl_info *ctrl_info)
{
int ret = 0;
struct megasas_cmd *cmd;
struct megasas_dcmd_frame *dcmd;
struct megasas_ctrl_info *ci;
dma_addr_t ci_h = 0;
cmd = megasas_get_cmd(instance);
if (!cmd) {
printk(KERN_DEBUG "megasas: Failed to get a free cmd\n");
return -ENOMEM;
}
dcmd = &cmd->frame->dcmd;
ci = pci_alloc_consistent(instance->pdev,
sizeof(struct megasas_ctrl_info), &ci_h);
if (!ci) {
printk(KERN_DEBUG "Failed to alloc mem for ctrl info\n");
megasas_return_cmd(instance, cmd);
return -ENOMEM;
}
memset(ci, 0, sizeof(*ci));
memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
dcmd->cmd = MFI_CMD_DCMD;
dcmd->cmd_status = 0xFF;
dcmd->sge_count = 1;
dcmd->flags = MFI_FRAME_DIR_READ;
dcmd->timeout = 0;
dcmd->data_xfer_len = sizeof(struct megasas_ctrl_info);
dcmd->opcode = MR_DCMD_CTRL_GET_INFO;
dcmd->sgl.sge32[0].phys_addr = ci_h;
dcmd->sgl.sge32[0].length = sizeof(struct megasas_ctrl_info);
if (!megasas_issue_polled(instance, cmd)) {
ret = 0;
memcpy(ctrl_info, ci, sizeof(struct megasas_ctrl_info));
} else {
ret = -1;
}
pci_free_consistent(instance->pdev, sizeof(struct megasas_ctrl_info),
ci, ci_h);
megasas_return_cmd(instance, cmd);
return ret;
}
/**
* megasas_init_mfi - Initializes the FW
* @instance: Adapter soft state
*
* This is the main function for initializing MFI firmware.
*/
static int megasas_init_mfi(struct megasas_instance *instance)
{
u32 context_sz;
u32 reply_q_sz;
u32 max_sectors_1;
u32 max_sectors_2;
struct megasas_register_set __iomem *reg_set;
struct megasas_cmd *cmd;
struct megasas_ctrl_info *ctrl_info;
struct megasas_init_frame *init_frame;
struct megasas_init_queue_info *initq_info;
dma_addr_t init_frame_h;
dma_addr_t initq_info_h;
/*
* Map the message registers
*/
instance->base_addr = pci_resource_start(instance->pdev, 0);
if (pci_request_regions(instance->pdev, "megasas: LSI Logic")) {
printk(KERN_DEBUG "megasas: IO memory region busy!\n");
return -EBUSY;
}
instance->reg_set = ioremap_nocache(instance->base_addr, 8192);
if (!instance->reg_set) {
printk(KERN_DEBUG "megasas: Failed to map IO mem\n");
goto fail_ioremap;
}
reg_set = instance->reg_set;
/*
* We expect the FW state to be READY
*/
if (megasas_transition_to_ready(instance->reg_set))
goto fail_ready_state;
/*
* Get various operational parameters from status register
*/
instance->max_fw_cmds = readl(&reg_set->outbound_msg_0) & 0x00FFFF;
instance->max_num_sge = (readl(&reg_set->outbound_msg_0) & 0xFF0000) >>
0x10;
/*
* Create a pool of commands
*/
if (megasas_alloc_cmds(instance))
goto fail_alloc_cmds;
/*
* Allocate memory for reply queue. Length of reply queue should
* be _one_ more than the maximum commands handled by the firmware.
*
* Note: When FW completes commands, it places corresponding contex
* values in this circular reply queue. This circular queue is a fairly
* typical producer-consumer queue. FW is the producer (of completed
* commands) and the driver is the consumer.
*/
context_sz = sizeof(u32);
reply_q_sz = context_sz * (instance->max_fw_cmds + 1);
instance->reply_queue = pci_alloc_consistent(instance->pdev,
reply_q_sz,
&instance->reply_queue_h);
if (!instance->reply_queue) {
printk(KERN_DEBUG "megasas: Out of DMA mem for reply queue\n");
goto fail_reply_queue;
}
/*
* Prepare a init frame. Note the init frame points to queue info
* structure. Each frame has SGL allocated after first 64 bytes. For
* this frame - since we don't need any SGL - we use SGL's space as
* queue info structure
*
* We will not get a NULL command below. We just created the pool.
*/
cmd = megasas_get_cmd(instance);
init_frame = (struct megasas_init_frame *)cmd->frame;
initq_info = (struct megasas_init_queue_info *)
((unsigned long)init_frame + 64);
init_frame_h = cmd->frame_phys_addr;
initq_info_h = init_frame_h + 64;
memset(init_frame, 0, MEGAMFI_FRAME_SIZE);
memset(initq_info, 0, sizeof(struct megasas_init_queue_info));
initq_info->reply_queue_entries = instance->max_fw_cmds + 1;
initq_info->reply_queue_start_phys_addr_lo = instance->reply_queue_h;
initq_info->producer_index_phys_addr_lo = instance->producer_h;
initq_info->consumer_index_phys_addr_lo = instance->consumer_h;
init_frame->cmd = MFI_CMD_INIT;
init_frame->cmd_status = 0xFF;
init_frame->queue_info_new_phys_addr_lo = initq_info_h;
init_frame->data_xfer_len = sizeof(struct megasas_init_queue_info);
/*
* Issue the init frame in polled mode
*/
if (megasas_issue_polled(instance, cmd)) {
printk(KERN_DEBUG "megasas: Failed to init firmware\n");
goto fail_fw_init;
}
megasas_return_cmd(instance, cmd);
ctrl_info = kmalloc(sizeof(struct megasas_ctrl_info), GFP_KERNEL);
/*
* Compute the max allowed sectors per IO: The controller info has two
* limits on max sectors. Driver should use the minimum of these two.
*
* 1 << stripe_sz_ops.min = max sectors per strip
*
* Note that older firmwares ( < FW ver 30) didn't report information
* to calculate max_sectors_1. So the number ended up as zero always.
*/
if (ctrl_info && !megasas_get_ctrl_info(instance, ctrl_info)) {
max_sectors_1 = (1 << ctrl_info->stripe_sz_ops.min) *
ctrl_info->max_strips_per_io;
max_sectors_2 = ctrl_info->max_request_size;
instance->max_sectors_per_req = (max_sectors_1 < max_sectors_2)
? max_sectors_1 : max_sectors_2;
} else
instance->max_sectors_per_req = instance->max_num_sge *
PAGE_SIZE / 512;
kfree(ctrl_info);
return 0;
fail_fw_init:
megasas_return_cmd(instance, cmd);
pci_free_consistent(instance->pdev, reply_q_sz,
instance->reply_queue, instance->reply_queue_h);
fail_reply_queue:
megasas_free_cmds(instance);
fail_alloc_cmds:
fail_ready_state:
iounmap(instance->reg_set);
fail_ioremap:
pci_release_regions(instance->pdev);
return -EINVAL;
}
/**
* megasas_release_mfi - Reverses the FW initialization
* @intance: Adapter soft state
*/
static void megasas_release_mfi(struct megasas_instance *instance)
{
u32 reply_q_sz = sizeof(u32) * (instance->max_fw_cmds + 1);
pci_free_consistent(instance->pdev, reply_q_sz,
instance->reply_queue, instance->reply_queue_h);
megasas_free_cmds(instance);
iounmap(instance->reg_set);
pci_release_regions(instance->pdev);
}
/**
* megasas_get_seq_num - Gets latest event sequence numbers
* @instance: Adapter soft state
* @eli: FW event log sequence numbers information
*
* FW maintains a log of all events in a non-volatile area. Upper layers would
* usually find out the latest sequence number of the events, the seq number at
* the boot etc. They would "read" all the events below the latest seq number
* by issuing a direct fw cmd (DCMD). For the future events (beyond latest seq
* number), they would subsribe to AEN (asynchronous event notification) and
* wait for the events to happen.
*/
static int
megasas_get_seq_num(struct megasas_instance *instance,
struct megasas_evt_log_info *eli)
{
struct megasas_cmd *cmd;
struct megasas_dcmd_frame *dcmd;
struct megasas_evt_log_info *el_info;
dma_addr_t el_info_h = 0;
cmd = megasas_get_cmd(instance);
if (!cmd) {
return -ENOMEM;
}
dcmd = &cmd->frame->dcmd;
el_info = pci_alloc_consistent(instance->pdev,
sizeof(struct megasas_evt_log_info),
&el_info_h);
if (!el_info) {
megasas_return_cmd(instance, cmd);
return -ENOMEM;
}
memset(el_info, 0, sizeof(*el_info));
memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
dcmd->cmd = MFI_CMD_DCMD;
dcmd->cmd_status = 0x0;
dcmd->sge_count = 1;
dcmd->flags = MFI_FRAME_DIR_READ;
dcmd->timeout = 0;
dcmd->data_xfer_len = sizeof(struct megasas_evt_log_info);
dcmd->opcode = MR_DCMD_CTRL_EVENT_GET_INFO;
dcmd->sgl.sge32[0].phys_addr = el_info_h;
dcmd->sgl.sge32[0].length = sizeof(struct megasas_evt_log_info);
megasas_issue_blocked_cmd(instance, cmd);
/*
* Copy the data back into callers buffer
*/
memcpy(eli, el_info, sizeof(struct megasas_evt_log_info));
pci_free_consistent(instance->pdev, sizeof(struct megasas_evt_log_info),
el_info, el_info_h);
megasas_return_cmd(instance, cmd);
return 0;
}
/**
* megasas_register_aen - Registers for asynchronous event notification
* @instance: Adapter soft state
* @seq_num: The starting sequence number
* @class_locale: Class of the event
*
* This function subscribes for AEN for events beyond the @seq_num. It requests
* to be notified if and only if the event is of type @class_locale
*/
static int
megasas_register_aen(struct megasas_instance *instance, u32 seq_num,
u32 class_locale_word)
{
int ret_val;
struct megasas_cmd *cmd;
struct megasas_dcmd_frame *dcmd;
union megasas_evt_class_locale curr_aen;
union megasas_evt_class_locale prev_aen;
/*
* If there an AEN pending already (aen_cmd), check if the
* class_locale of that pending AEN is inclusive of the new
* AEN request we currently have. If it is, then we don't have
* to do anything. In other words, whichever events the current
* AEN request is subscribing to, have already been subscribed
* to.
*
* If the old_cmd is _not_ inclusive, then we have to abort
* that command, form a class_locale that is superset of both
* old and current and re-issue to the FW
*/
curr_aen.word = class_locale_word;
if (instance->aen_cmd) {
prev_aen.word = instance->aen_cmd->frame->dcmd.mbox.w[1];
/*
* A class whose enum value is smaller is inclusive of all
* higher values. If a PROGRESS (= -1) was previously
* registered, then a new registration requests for higher
* classes need not be sent to FW. They are automatically
* included.
*
* Locale numbers don't have such hierarchy. They are bitmap
* values
*/
if ((prev_aen.members.class <= curr_aen.members.class) &&
!((prev_aen.members.locale & curr_aen.members.locale) ^
curr_aen.members.locale)) {
/*
* Previously issued event registration includes
* current request. Nothing to do.
*/
return 0;
} else {
curr_aen.members.locale |= prev_aen.members.locale;
if (prev_aen.members.class < curr_aen.members.class)
curr_aen.members.class = prev_aen.members.class;
instance->aen_cmd->abort_aen = 1;
ret_val = megasas_issue_blocked_abort_cmd(instance,
instance->
aen_cmd);
if (ret_val) {
printk(KERN_DEBUG "megasas: Failed to abort "
"previous AEN command\n");
return ret_val;
}
}
}
cmd = megasas_get_cmd(instance);
if (!cmd)
return -ENOMEM;
dcmd = &cmd->frame->dcmd;
memset(instance->evt_detail, 0, sizeof(struct megasas_evt_detail));
/*
* Prepare DCMD for aen registration
*/
memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
dcmd->cmd = MFI_CMD_DCMD;
dcmd->cmd_status = 0x0;
dcmd->sge_count = 1;
dcmd->flags = MFI_FRAME_DIR_READ;
dcmd->timeout = 0;
dcmd->data_xfer_len = sizeof(struct megasas_evt_detail);
dcmd->opcode = MR_DCMD_CTRL_EVENT_WAIT;
dcmd->mbox.w[0] = seq_num;
dcmd->mbox.w[1] = curr_aen.word;
dcmd->sgl.sge32[0].phys_addr = (u32) instance->evt_detail_h;
dcmd->sgl.sge32[0].length = sizeof(struct megasas_evt_detail);
/*
* Store reference to the cmd used to register for AEN. When an
* application wants us to register for AEN, we have to abort this
* cmd and re-register with a new EVENT LOCALE supplied by that app
*/
instance->aen_cmd = cmd;
/*
* Issue the aen registration frame
*/
writel(cmd->frame_phys_addr >> 3,
&instance->reg_set->inbound_queue_port);
return 0;
}
/**
* megasas_start_aen - Subscribes to AEN during driver load time
* @instance: Adapter soft state
*/
static int megasas_start_aen(struct megasas_instance *instance)
{
struct megasas_evt_log_info eli;
union megasas_evt_class_locale class_locale;
/*
* Get the latest sequence number from FW
*/
memset(&eli, 0, sizeof(eli));
if (megasas_get_seq_num(instance, &eli))
return -1;
/*
* Register AEN with FW for latest sequence number plus 1
*/
class_locale.members.reserved = 0;
class_locale.members.locale = MR_EVT_LOCALE_ALL;
class_locale.members.class = MR_EVT_CLASS_DEBUG;
return megasas_register_aen(instance, eli.newest_seq_num + 1,
class_locale.word);
}
/**
* megasas_io_attach - Attaches this driver to SCSI mid-layer
* @instance: Adapter soft state
*/
static int megasas_io_attach(struct megasas_instance *instance)
{
struct Scsi_Host *host = instance->host;
/*
* Export parameters required by SCSI mid-layer
*/
host->irq = instance->pdev->irq;
host->unique_id = instance->unique_id;
host->can_queue = instance->max_fw_cmds - MEGASAS_INT_CMDS;
host->this_id = instance->init_id;
host->sg_tablesize = instance->max_num_sge;
host->max_sectors = instance->max_sectors_per_req;
host->cmd_per_lun = 128;
host->max_channel = MEGASAS_MAX_CHANNELS - 1;
host->max_id = MEGASAS_MAX_DEV_PER_CHANNEL;
host->max_lun = MEGASAS_MAX_LUN;
/*
* Notify the mid-layer about the new controller
*/
if (scsi_add_host(host, &instance->pdev->dev)) {
printk(KERN_DEBUG "megasas: scsi_add_host failed\n");
return -ENODEV;
}
/*
* Trigger SCSI to scan our drives
*/
scsi_scan_host(host);
return 0;
}
/**
* megasas_probe_one - PCI hotplug entry point
* @pdev: PCI device structure
* @id: PCI ids of supported hotplugged adapter
*/
static int __devinit
megasas_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
{
int rval;
struct Scsi_Host *host;
struct megasas_instance *instance;
/*
* Announce PCI information
*/
printk(KERN_INFO "megasas: %#4.04x:%#4.04x:%#4.04x:%#4.04x: ",
pdev->vendor, pdev->device, pdev->subsystem_vendor,
pdev->subsystem_device);
printk("bus %d:slot %d:func %d\n",
pdev->bus->number, PCI_SLOT(pdev->devfn), PCI_FUNC(pdev->devfn));
/*
* PCI prepping: enable device set bus mastering and dma mask
*/
rval = pci_enable_device(pdev);
if (rval) {
return rval;
}
pci_set_master(pdev);
/*
* All our contollers are capable of performing 64-bit DMA
*/
if (IS_DMA64) {
if (pci_set_dma_mask(pdev, DMA_64BIT_MASK) != 0) {
if (pci_set_dma_mask(pdev, DMA_32BIT_MASK) != 0)
goto fail_set_dma_mask;
}
} else {
if (pci_set_dma_mask(pdev, DMA_32BIT_MASK) != 0)
goto fail_set_dma_mask;
}
host = scsi_host_alloc(&megasas_template,
sizeof(struct megasas_instance));
if (!host) {
printk(KERN_DEBUG "megasas: scsi_host_alloc failed\n");
goto fail_alloc_instance;
}
instance = (struct megasas_instance *)host->hostdata;
memset(instance, 0, sizeof(*instance));
instance->producer = pci_alloc_consistent(pdev, sizeof(u32),
&instance->producer_h);
instance->consumer = pci_alloc_consistent(pdev, sizeof(u32),
&instance->consumer_h);
if (!instance->producer || !instance->consumer) {
printk(KERN_DEBUG "megasas: Failed to allocate memory for "
"producer, consumer\n");
goto fail_alloc_dma_buf;
}
*instance->producer = 0;
*instance->consumer = 0;
instance->evt_detail = pci_alloc_consistent(pdev,
sizeof(struct
megasas_evt_detail),
&instance->evt_detail_h);
if (!instance->evt_detail) {
printk(KERN_DEBUG "megasas: Failed to allocate memory for "
"event detail structure\n");
goto fail_alloc_dma_buf;
}
/*
* Initialize locks and queues
*/
INIT_LIST_HEAD(&instance->cmd_pool);
init_waitqueue_head(&instance->int_cmd_wait_q);
init_waitqueue_head(&instance->abort_cmd_wait_q);
spin_lock_init(&instance->cmd_pool_lock);
spin_lock_init(&instance->instance_lock);
sema_init(&instance->aen_mutex, 1);
sema_init(&instance->ioctl_sem, MEGASAS_INT_CMDS);
/*
* Initialize PCI related and misc parameters
*/
instance->pdev = pdev;
instance->host = host;
instance->unique_id = pdev->bus->number << 8 | pdev->devfn;
instance->init_id = MEGASAS_DEFAULT_INIT_ID;
/*
* Initialize MFI Firmware
*/
if (megasas_init_mfi(instance))
goto fail_init_mfi;
/*
* Register IRQ
*/
if (request_irq(pdev->irq, megasas_isr, SA_SHIRQ, "megasas", instance)) {
printk(KERN_DEBUG "megasas: Failed to register IRQ\n");
goto fail_irq;
}
megasas_enable_intr(instance->reg_set);
/*
* Store instance in PCI softstate
*/
pci_set_drvdata(pdev, instance);
/*
* Add this controller to megasas_mgmt_info structure so that it
* can be exported to management applications
*/
megasas_mgmt_info.count++;
megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = instance;
megasas_mgmt_info.max_index++;
/*
* Initiate AEN (Asynchronous Event Notification)
*/
if (megasas_start_aen(instance)) {
printk(KERN_DEBUG "megasas: start aen failed\n");
goto fail_start_aen;
}
/*
* Register with SCSI mid-layer
*/
if (megasas_io_attach(instance))
goto fail_io_attach;
return 0;
fail_start_aen:
fail_io_attach:
megasas_mgmt_info.count--;
megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = NULL;
megasas_mgmt_info.max_index--;
pci_set_drvdata(pdev, NULL);
megasas_disable_intr(instance->reg_set);
free_irq(instance->pdev->irq, instance);
megasas_release_mfi(instance);
fail_irq:
fail_init_mfi:
fail_alloc_dma_buf:
if (instance->evt_detail)
pci_free_consistent(pdev, sizeof(struct megasas_evt_detail),
instance->evt_detail,
instance->evt_detail_h);
if (instance->producer)
pci_free_consistent(pdev, sizeof(u32), instance->producer,
instance->producer_h);
if (instance->consumer)
pci_free_consistent(pdev, sizeof(u32), instance->consumer,
instance->consumer_h);
scsi_host_put(host);
fail_alloc_instance:
fail_set_dma_mask:
pci_disable_device(pdev);
return -ENODEV;
}
/**
* megasas_flush_cache - Requests FW to flush all its caches
* @instance: Adapter soft state
*/
static void megasas_flush_cache(struct megasas_instance *instance)
{
struct megasas_cmd *cmd;
struct megasas_dcmd_frame *dcmd;
cmd = megasas_get_cmd(instance);
if (!cmd)
return;
dcmd = &cmd->frame->dcmd;
memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
dcmd->cmd = MFI_CMD_DCMD;
dcmd->cmd_status = 0x0;
dcmd->sge_count = 0;
dcmd->flags = MFI_FRAME_DIR_NONE;
dcmd->timeout = 0;
dcmd->data_xfer_len = 0;
dcmd->opcode = MR_DCMD_CTRL_CACHE_FLUSH;
dcmd->mbox.b[0] = MR_FLUSH_CTRL_CACHE | MR_FLUSH_DISK_CACHE;
megasas_issue_blocked_cmd(instance, cmd);
megasas_return_cmd(instance, cmd);
return;
}
/**
* megasas_shutdown_controller - Instructs FW to shutdown the controller
* @instance: Adapter soft state
*/
static void megasas_shutdown_controller(struct megasas_instance *instance)
{
struct megasas_cmd *cmd;
struct megasas_dcmd_frame *dcmd;
cmd = megasas_get_cmd(instance);
if (!cmd)
return;
if (instance->aen_cmd)
megasas_issue_blocked_abort_cmd(instance, instance->aen_cmd);
dcmd = &cmd->frame->dcmd;
memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
dcmd->cmd = MFI_CMD_DCMD;
dcmd->cmd_status = 0x0;
dcmd->sge_count = 0;
dcmd->flags = MFI_FRAME_DIR_NONE;
dcmd->timeout = 0;
dcmd->data_xfer_len = 0;
dcmd->opcode = MR_DCMD_CTRL_SHUTDOWN;
megasas_issue_blocked_cmd(instance, cmd);
megasas_return_cmd(instance, cmd);
return;
}
/**
* megasas_detach_one - PCI hot"un"plug entry point
* @pdev: PCI device structure
*/
static void megasas_detach_one(struct pci_dev *pdev)
{
int i;
struct Scsi_Host *host;
struct megasas_instance *instance;
instance = pci_get_drvdata(pdev);
host = instance->host;
scsi_remove_host(instance->host);
megasas_flush_cache(instance);
megasas_shutdown_controller(instance);
/*
* Take the instance off the instance array. Note that we will not
* decrement the max_index. We let this array be sparse array
*/
for (i = 0; i < megasas_mgmt_info.max_index; i++) {
if (megasas_mgmt_info.instance[i] == instance) {
megasas_mgmt_info.count--;
megasas_mgmt_info.instance[i] = NULL;
break;
}
}
pci_set_drvdata(instance->pdev, NULL);
megasas_disable_intr(instance->reg_set);
free_irq(instance->pdev->irq, instance);
megasas_release_mfi(instance);
pci_free_consistent(pdev, sizeof(struct megasas_evt_detail),
instance->evt_detail, instance->evt_detail_h);
pci_free_consistent(pdev, sizeof(u32), instance->producer,
instance->producer_h);
pci_free_consistent(pdev, sizeof(u32), instance->consumer,
instance->consumer_h);
scsi_host_put(host);
pci_set_drvdata(pdev, NULL);
pci_disable_device(pdev);
return;
}
/**
* megasas_shutdown - Shutdown entry point
* @device: Generic device structure
*/
static void megasas_shutdown(struct pci_dev *pdev)
{
struct megasas_instance *instance = pci_get_drvdata(pdev);
megasas_flush_cache(instance);
}
/**
* megasas_mgmt_open - char node "open" entry point
*/
static int megasas_mgmt_open(struct inode *inode, struct file *filep)
{
/*
* Allow only those users with admin rights
*/
if (!capable(CAP_SYS_ADMIN))
return -EACCES;
return 0;
}
/**
* megasas_mgmt_release - char node "release" entry point
*/
static int megasas_mgmt_release(struct inode *inode, struct file *filep)
{
filep->private_data = NULL;
fasync_helper(-1, filep, 0, &megasas_async_queue);
return 0;
}
/**
* megasas_mgmt_fasync - Async notifier registration from applications
*
* This function adds the calling process to a driver global queue. When an
* event occurs, SIGIO will be sent to all processes in this queue.
*/
static int megasas_mgmt_fasync(int fd, struct file *filep, int mode)
{
int rc;
down(&megasas_async_queue_mutex);
rc = fasync_helper(fd, filep, mode, &megasas_async_queue);
up(&megasas_async_queue_mutex);
if (rc >= 0) {
/* For sanity check when we get ioctl */
filep->private_data = filep;
return 0;
}
printk(KERN_DEBUG "megasas: fasync_helper failed [%d]\n", rc);
return rc;
}
/**
* megasas_mgmt_fw_ioctl - Issues management ioctls to FW
* @instance: Adapter soft state
* @argp: User's ioctl packet
*/
static int
megasas_mgmt_fw_ioctl(struct megasas_instance *instance,
struct megasas_iocpacket __user * user_ioc,
struct megasas_iocpacket *ioc)
{
struct megasas_sge32 *kern_sge32;
struct megasas_cmd *cmd;
void *kbuff_arr[MAX_IOCTL_SGE];
dma_addr_t buf_handle = 0;
int error = 0, i;
void *sense = NULL;
dma_addr_t sense_handle;
u32 *sense_ptr;
memset(kbuff_arr, 0, sizeof(kbuff_arr));
if (ioc->sge_count > MAX_IOCTL_SGE) {
printk(KERN_DEBUG "megasas: SGE count [%d] > max limit [%d]\n",
ioc->sge_count, MAX_IOCTL_SGE);
return -EINVAL;
}
cmd = megasas_get_cmd(instance);
if (!cmd) {
printk(KERN_DEBUG "megasas: Failed to get a cmd packet\n");
return -ENOMEM;
}
/*
* User's IOCTL packet has 2 frames (maximum). Copy those two
* frames into our cmd's frames. cmd->frame's context will get
* overwritten when we copy from user's frames. So set that value
* alone separately
*/
memcpy(cmd->frame, ioc->frame.raw, 2 * MEGAMFI_FRAME_SIZE);
cmd->frame->hdr.context = cmd->index;
/*
* The management interface between applications and the fw uses
* MFI frames. E.g, RAID configuration changes, LD property changes
* etc are accomplishes through different kinds of MFI frames. The
* driver needs to care only about substituting user buffers with
* kernel buffers in SGLs. The location of SGL is embedded in the
* struct iocpacket itself.
*/
kern_sge32 = (struct megasas_sge32 *)
((unsigned long)cmd->frame + ioc->sgl_off);
/*
* For each user buffer, create a mirror buffer and copy in
*/
for (i = 0; i < ioc->sge_count; i++) {
kbuff_arr[i] = pci_alloc_consistent(instance->pdev,
ioc->sgl[i].iov_len,
&buf_handle);
if (!kbuff_arr[i]) {
printk(KERN_DEBUG "megasas: Failed to alloc "
"kernel SGL buffer for IOCTL \n");
error = -ENOMEM;
goto out;
}
/*
* We don't change the dma_coherent_mask, so
* pci_alloc_consistent only returns 32bit addresses
*/
kern_sge32[i].phys_addr = (u32) buf_handle;
kern_sge32[i].length = ioc->sgl[i].iov_len;
/*
* We created a kernel buffer corresponding to the
* user buffer. Now copy in from the user buffer
*/
if (copy_from_user(kbuff_arr[i], ioc->sgl[i].iov_base,
(u32) (ioc->sgl[i].iov_len))) {
error = -EFAULT;
goto out;
}
}
if (ioc->sense_len) {
sense = pci_alloc_consistent(instance->pdev, ioc->sense_len,
&sense_handle);
if (!sense) {
error = -ENOMEM;
goto out;
}
sense_ptr =
(u32 *) ((unsigned long)cmd->frame + ioc->sense_off);
*sense_ptr = sense_handle;
}
/*
* Set the sync_cmd flag so that the ISR knows not to complete this
* cmd to the SCSI mid-layer
*/
cmd->sync_cmd = 1;
megasas_issue_blocked_cmd(instance, cmd);
cmd->sync_cmd = 0;
/*
* copy out the kernel buffers to user buffers
*/
for (i = 0; i < ioc->sge_count; i++) {
if (copy_to_user(ioc->sgl[i].iov_base, kbuff_arr[i],
ioc->sgl[i].iov_len)) {
error = -EFAULT;
goto out;
}
}
/*
* copy out the sense
*/
if (ioc->sense_len) {
/*
* sense_ptr points to the location that has the user
* sense buffer address
*/
sense_ptr = (u32 *) ((unsigned long)ioc->frame.raw +
ioc->sense_off);
if (copy_to_user((void __user *)((unsigned long)(*sense_ptr)),
sense, ioc->sense_len)) {
error = -EFAULT;
goto out;
}
}
/*
* copy the status codes returned by the fw
*/
if (copy_to_user(&user_ioc->frame.hdr.cmd_status,
&cmd->frame->hdr.cmd_status, sizeof(u8))) {
printk(KERN_DEBUG "megasas: Error copying out cmd_status\n");
error = -EFAULT;
}
out:
if (sense) {
pci_free_consistent(instance->pdev, ioc->sense_len,
sense, sense_handle);
}
for (i = 0; i < ioc->sge_count && kbuff_arr[i]; i++) {
pci_free_consistent(instance->pdev,
kern_sge32[i].length,
kbuff_arr[i], kern_sge32[i].phys_addr);
}
megasas_return_cmd(instance, cmd);
return error;
}
static struct megasas_instance *megasas_lookup_instance(u16 host_no)
{
int i;
for (i = 0; i < megasas_mgmt_info.max_index; i++) {
if ((megasas_mgmt_info.instance[i]) &&
(megasas_mgmt_info.instance[i]->host->host_no == host_no))
return megasas_mgmt_info.instance[i];
}
return NULL;
}
static int megasas_mgmt_ioctl_fw(struct file *file, unsigned long arg)
{
struct megasas_iocpacket __user *user_ioc =
(struct megasas_iocpacket __user *)arg;
struct megasas_iocpacket *ioc;
struct megasas_instance *instance;
int error;
ioc = kmalloc(sizeof(*ioc), GFP_KERNEL);
if (!ioc)
return -ENOMEM;
if (copy_from_user(ioc, user_ioc, sizeof(*ioc))) {
error = -EFAULT;
goto out_kfree_ioc;
}
instance = megasas_lookup_instance(ioc->host_no);
if (!instance) {
error = -ENODEV;
goto out_kfree_ioc;
}
/*
* We will allow only MEGASAS_INT_CMDS number of parallel ioctl cmds
*/
if (down_interruptible(&instance->ioctl_sem)) {
error = -ERESTARTSYS;
goto out_kfree_ioc;
}
error = megasas_mgmt_fw_ioctl(instance, user_ioc, ioc);
up(&instance->ioctl_sem);
out_kfree_ioc:
kfree(ioc);
return error;
}
static int megasas_mgmt_ioctl_aen(struct file *file, unsigned long arg)
{
struct megasas_instance *instance;
struct megasas_aen aen;
int error;
if (file->private_data != file) {
printk(KERN_DEBUG "megasas: fasync_helper was not "
"called first\n");
return -EINVAL;
}
if (copy_from_user(&aen, (void __user *)arg, sizeof(aen)))
return -EFAULT;
instance = megasas_lookup_instance(aen.host_no);
if (!instance)
return -ENODEV;
down(&instance->aen_mutex);
error = megasas_register_aen(instance, aen.seq_num,
aen.class_locale_word);
up(&instance->aen_mutex);
return error;
}
/**
* megasas_mgmt_ioctl - char node ioctl entry point
*/
static long
megasas_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
switch (cmd) {
case MEGASAS_IOC_FIRMWARE:
return megasas_mgmt_ioctl_fw(file, arg);
case MEGASAS_IOC_GET_AEN:
return megasas_mgmt_ioctl_aen(file, arg);
}
return -ENOTTY;
}
#ifdef CONFIG_COMPAT
static int megasas_mgmt_compat_ioctl_fw(struct file *file, unsigned long arg)
{
struct compat_megasas_iocpacket __user *cioc =
(struct compat_megasas_iocpacket __user *)arg;
struct megasas_iocpacket __user *ioc =
compat_alloc_user_space(sizeof(struct megasas_iocpacket));
int i;
int error = 0;
clear_user(ioc, sizeof(*ioc));
if (copy_in_user(&ioc->host_no, &cioc->host_no, sizeof(u16)) ||
copy_in_user(&ioc->sgl_off, &cioc->sgl_off, sizeof(u32)) ||
copy_in_user(&ioc->sense_off, &cioc->sense_off, sizeof(u32)) ||
copy_in_user(&ioc->sense_len, &cioc->sense_len, sizeof(u32)) ||
copy_in_user(ioc->frame.raw, cioc->frame.raw, 128) ||
copy_in_user(&ioc->sge_count, &cioc->sge_count, sizeof(u32)))
return -EFAULT;
for (i = 0; i < MAX_IOCTL_SGE; i++) {
compat_uptr_t ptr;
if (get_user(ptr, &cioc->sgl[i].iov_base) ||
put_user(compat_ptr(ptr), &ioc->sgl[i].iov_base) ||
copy_in_user(&ioc->sgl[i].iov_len,
&cioc->sgl[i].iov_len, sizeof(compat_size_t)))
return -EFAULT;
}
error = megasas_mgmt_ioctl_fw(file, (unsigned long)ioc);
if (copy_in_user(&cioc->frame.hdr.cmd_status,
&ioc->frame.hdr.cmd_status, sizeof(u8))) {
printk(KERN_DEBUG "megasas: error copy_in_user cmd_status\n");
return -EFAULT;
}
return error;
}
static long
megasas_mgmt_compat_ioctl(struct file *file, unsigned int cmd,
unsigned long arg)
{
switch (cmd) {
case MEGASAS_IOC_FIRMWARE:{
return megasas_mgmt_compat_ioctl_fw(file, arg);
}
case MEGASAS_IOC_GET_AEN:
return megasas_mgmt_ioctl_aen(file, arg);
}
return -ENOTTY;
}
#endif
/*
* File operations structure for management interface
*/
static struct file_operations megasas_mgmt_fops = {
.owner = THIS_MODULE,
.open = megasas_mgmt_open,
.release = megasas_mgmt_release,
.fasync = megasas_mgmt_fasync,
.unlocked_ioctl = megasas_mgmt_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl = megasas_mgmt_compat_ioctl,
#endif
};
/*
* PCI hotplug support registration structure
*/
static struct pci_driver megasas_pci_driver = {
.name = "megaraid_sas",
.id_table = megasas_pci_table,
.probe = megasas_probe_one,
.remove = __devexit_p(megasas_detach_one),
.shutdown = megasas_shutdown,
};
/*
* Sysfs driver attributes
*/
static ssize_t megasas_sysfs_show_version(struct device_driver *dd, char *buf)
{
return snprintf(buf, strlen(MEGASAS_VERSION) + 2, "%s\n",
MEGASAS_VERSION);
}
static DRIVER_ATTR(version, S_IRUGO, megasas_sysfs_show_version, NULL);
static ssize_t
megasas_sysfs_show_release_date(struct device_driver *dd, char *buf)
{
return snprintf(buf, strlen(MEGASAS_RELDATE) + 2, "%s\n",
MEGASAS_RELDATE);
}
static DRIVER_ATTR(release_date, S_IRUGO, megasas_sysfs_show_release_date,
NULL);
/**
* megasas_init - Driver load entry point
*/
static int __init megasas_init(void)
{
int rval;
/*
* Announce driver version and other information
*/
printk(KERN_INFO "megasas: %s %s\n", MEGASAS_VERSION,
MEGASAS_EXT_VERSION);
memset(&megasas_mgmt_info, 0, sizeof(megasas_mgmt_info));
/*
* Register character device node
*/
rval = register_chrdev(0, "megaraid_sas_ioctl", &megasas_mgmt_fops);
if (rval < 0) {
printk(KERN_DEBUG "megasas: failed to open device node\n");
return rval;
}
megasas_mgmt_majorno = rval;
/*
* Register ourselves as PCI hotplug module
*/
rval = pci_module_init(&megasas_pci_driver);
if (rval) {
printk(KERN_DEBUG "megasas: PCI hotplug regisration failed \n");
unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl");
}
driver_create_file(&megasas_pci_driver.driver, &driver_attr_version);
driver_create_file(&megasas_pci_driver.driver,
&driver_attr_release_date);
return rval;
}
/**
* megasas_exit - Driver unload entry point
*/
static void __exit megasas_exit(void)
{
driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version);
driver_remove_file(&megasas_pci_driver.driver,
&driver_attr_release_date);
pci_unregister_driver(&megasas_pci_driver);
unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl");
}
module_init(megasas_init);
module_exit(megasas_exit);
drivers/scsi/megaraid/megaraid_sas.h 0 → 100644
View file @ 7d6322b4
/*
*
* Linux MegaRAID driver for SAS based RAID controllers
*
* Copyright (c) 2003-2005 LSI Logic Corporation.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*
* FILE : megaraid_sas.h
*/
#ifndef LSI_MEGARAID_SAS_H
#define LSI_MEGARAID_SAS_H
/**
* MegaRAID SAS Driver meta data
*/
#define MEGASAS_VERSION "00.00.02.00-rc4"
#define MEGASAS_RELDATE "Sep 16, 2005"
#define MEGASAS_EXT_VERSION "Fri Sep 16 12:37:08 EDT 2005"
/*
* =====================================
* MegaRAID SAS MFI firmware definitions
* =====================================
*/
/*
* MFI stands for MegaRAID SAS FW Interface. This is just a moniker for
* protocol between the software and firmware. Commands are issued using
* "message frames"
*/
/**
* FW posts its state in upper 4 bits of outbound_msg_0 register
*/
#define MFI_STATE_MASK 0xF0000000
#define MFI_STATE_UNDEFINED 0x00000000
#define MFI_STATE_BB_INIT 0x10000000
#define MFI_STATE_FW_INIT 0x40000000
#define MFI_STATE_WAIT_HANDSHAKE 0x60000000
#define MFI_STATE_FW_INIT_2 0x70000000
#define MFI_STATE_DEVICE_SCAN 0x80000000
#define MFI_STATE_FLUSH_CACHE 0xA0000000
#define MFI_STATE_READY 0xB0000000
#define MFI_STATE_OPERATIONAL 0xC0000000
#define MFI_STATE_FAULT 0xF0000000
#define MEGAMFI_FRAME_SIZE 64
/**
* During FW init, clear pending cmds & reset state using inbound_msg_0
*
* ABORT : Abort all pending cmds
* READY : Move from OPERATIONAL to READY state; discard queue info
* MFIMODE : Discard (possible) low MFA posted in 64-bit mode (??)
* CLR_HANDSHAKE: FW is waiting for HANDSHAKE from BIOS or Driver
*/
#define MFI_INIT_ABORT 0x00000000
#define MFI_INIT_READY 0x00000002
#define MFI_INIT_MFIMODE 0x00000004
#define MFI_INIT_CLEAR_HANDSHAKE 0x00000008
#define MFI_RESET_FLAGS MFI_INIT_READY|MFI_INIT_MFIMODE
/**
* MFI frame flags
*/
#define MFI_FRAME_POST_IN_REPLY_QUEUE 0x0000
#define MFI_FRAME_DONT_POST_IN_REPLY_QUEUE 0x0001
#define MFI_FRAME_SGL32 0x0000
#define MFI_FRAME_SGL64 0x0002
#define MFI_FRAME_SENSE32 0x0000
#define MFI_FRAME_SENSE64 0x0004
#define MFI_FRAME_DIR_NONE 0x0000
#define MFI_FRAME_DIR_WRITE 0x0008
#define MFI_FRAME_DIR_READ 0x0010
#define MFI_FRAME_DIR_BOTH 0x0018
/**
* Definition for cmd_status
*/
#define MFI_CMD_STATUS_POLL_MODE 0xFF
/**
* MFI command opcodes
*/
#define MFI_CMD_INIT 0x00
#define MFI_CMD_LD_READ 0x01
#define MFI_CMD_LD_WRITE 0x02
#define MFI_CMD_LD_SCSI_IO 0x03
#define MFI_CMD_PD_SCSI_IO 0x04
#define MFI_CMD_DCMD 0x05
#define MFI_CMD_ABORT 0x06
#define MFI_CMD_SMP 0x07
#define MFI_CMD_STP 0x08
#define MR_DCMD_CTRL_GET_INFO 0x01010000
#define MR_DCMD_CTRL_CACHE_FLUSH 0x01101000
#define MR_FLUSH_CTRL_CACHE 0x01
#define MR_FLUSH_DISK_CACHE 0x02
#define MR_DCMD_CTRL_SHUTDOWN 0x01050000
#define MR_ENABLE_DRIVE_SPINDOWN 0x01
#define MR_DCMD_CTRL_EVENT_GET_INFO 0x01040100
#define MR_DCMD_CTRL_EVENT_GET 0x01040300
#define MR_DCMD_CTRL_EVENT_WAIT 0x01040500
#define MR_DCMD_LD_GET_PROPERTIES 0x03030000
#define MR_DCMD_CLUSTER 0x08000000
#define MR_DCMD_CLUSTER_RESET_ALL 0x08010100
#define MR_DCMD_CLUSTER_RESET_LD 0x08010200
/**
* MFI command completion codes
*/
enum MFI_STAT {
MFI_STAT_OK = 0x00,
MFI_STAT_INVALID_CMD = 0x01,
MFI_STAT_INVALID_DCMD = 0x02,
MFI_STAT_INVALID_PARAMETER = 0x03,
MFI_STAT_INVALID_SEQUENCE_NUMBER = 0x04,
MFI_STAT_ABORT_NOT_POSSIBLE = 0x05,
MFI_STAT_APP_HOST_CODE_NOT_FOUND = 0x06,
MFI_STAT_APP_IN_USE = 0x07,
MFI_STAT_APP_NOT_INITIALIZED = 0x08,
MFI_STAT_ARRAY_INDEX_INVALID = 0x09,
MFI_STAT_ARRAY_ROW_NOT_EMPTY = 0x0a,
MFI_STAT_CONFIG_RESOURCE_CONFLICT = 0x0b,
MFI_STAT_DEVICE_NOT_FOUND = 0x0c,
MFI_STAT_DRIVE_TOO_SMALL = 0x0d,
MFI_STAT_FLASH_ALLOC_FAIL = 0x0e,
MFI_STAT_FLASH_BUSY = 0x0f,
MFI_STAT_FLASH_ERROR = 0x10,
MFI_STAT_FLASH_IMAGE_BAD = 0x11,
MFI_STAT_FLASH_IMAGE_INCOMPLETE = 0x12,
MFI_STAT_FLASH_NOT_OPEN = 0x13,
MFI_STAT_FLASH_NOT_STARTED = 0x14,
MFI_STAT_FLUSH_FAILED = 0x15,
MFI_STAT_HOST_CODE_NOT_FOUNT = 0x16,
MFI_STAT_LD_CC_IN_PROGRESS = 0x17,
MFI_STAT_LD_INIT_IN_PROGRESS = 0x18,
MFI_STAT_LD_LBA_OUT_OF_RANGE = 0x19,
MFI_STAT_LD_MAX_CONFIGURED = 0x1a,
MFI_STAT_LD_NOT_OPTIMAL = 0x1b,
MFI_STAT_LD_RBLD_IN_PROGRESS = 0x1c,
MFI_STAT_LD_RECON_IN_PROGRESS = 0x1d,
MFI_STAT_LD_WRONG_RAID_LEVEL = 0x1e,
MFI_STAT_MAX_SPARES_EXCEEDED = 0x1f,
MFI_STAT_MEMORY_NOT_AVAILABLE = 0x20,
MFI_STAT_MFC_HW_ERROR = 0x21,
MFI_STAT_NO_HW_PRESENT = 0x22,
MFI_STAT_NOT_FOUND = 0x23,
MFI_STAT_NOT_IN_ENCL = 0x24,
MFI_STAT_PD_CLEAR_IN_PROGRESS = 0x25,
MFI_STAT_PD_TYPE_WRONG = 0x26,
MFI_STAT_PR_DISABLED = 0x27,
MFI_STAT_ROW_INDEX_INVALID = 0x28,
MFI_STAT_SAS_CONFIG_INVALID_ACTION = 0x29,
MFI_STAT_SAS_CONFIG_INVALID_DATA = 0x2a,
MFI_STAT_SAS_CONFIG_INVALID_PAGE = 0x2b,
MFI_STAT_SAS_CONFIG_INVALID_TYPE = 0x2c,
MFI_STAT_SCSI_DONE_WITH_ERROR = 0x2d,
MFI_STAT_SCSI_IO_FAILED = 0x2e,
MFI_STAT_SCSI_RESERVATION_CONFLICT = 0x2f,
MFI_STAT_SHUTDOWN_FAILED = 0x30,
MFI_STAT_TIME_NOT_SET = 0x31,
MFI_STAT_WRONG_STATE = 0x32,
MFI_STAT_LD_OFFLINE = 0x33,
MFI_STAT_PEER_NOTIFICATION_REJECTED = 0x34,
MFI_STAT_PEER_NOTIFICATION_FAILED = 0x35,
MFI_STAT_RESERVATION_IN_PROGRESS = 0x36,
MFI_STAT_I2C_ERRORS_DETECTED = 0x37,
MFI_STAT_PCI_ERRORS_DETECTED = 0x38,
MFI_STAT_INVALID_STATUS = 0xFF
};
/*
* Number of mailbox bytes in DCMD message frame
*/
#define MFI_MBOX_SIZE 12
enum MR_EVT_CLASS {
MR_EVT_CLASS_DEBUG = -2,
MR_EVT_CLASS_PROGRESS = -1,
MR_EVT_CLASS_INFO = 0,
MR_EVT_CLASS_WARNING = 1,
MR_EVT_CLASS_CRITICAL = 2,
MR_EVT_CLASS_FATAL = 3,
MR_EVT_CLASS_DEAD = 4,
};
enum MR_EVT_LOCALE {
MR_EVT_LOCALE_LD = 0x0001,
MR_EVT_LOCALE_PD = 0x0002,
MR_EVT_LOCALE_ENCL = 0x0004,
MR_EVT_LOCALE_BBU = 0x0008,
MR_EVT_LOCALE_SAS = 0x0010,
MR_EVT_LOCALE_CTRL = 0x0020,
MR_EVT_LOCALE_CONFIG = 0x0040,
MR_EVT_LOCALE_CLUSTER = 0x0080,
MR_EVT_LOCALE_ALL = 0xffff,
};
enum MR_EVT_ARGS {
MR_EVT_ARGS_NONE,
MR_EVT_ARGS_CDB_SENSE,
MR_EVT_ARGS_LD,
MR_EVT_ARGS_LD_COUNT,
MR_EVT_ARGS_LD_LBA,
MR_EVT_ARGS_LD_OWNER,
MR_EVT_ARGS_LD_LBA_PD_LBA,
MR_EVT_ARGS_LD_PROG,
MR_EVT_ARGS_LD_STATE,
MR_EVT_ARGS_LD_STRIP,
MR_EVT_ARGS_PD,
MR_EVT_ARGS_PD_ERR,
MR_EVT_ARGS_PD_LBA,
MR_EVT_ARGS_PD_LBA_LD,
MR_EVT_ARGS_PD_PROG,
MR_EVT_ARGS_PD_STATE,
MR_EVT_ARGS_PCI,
MR_EVT_ARGS_RATE,
MR_EVT_ARGS_STR,
MR_EVT_ARGS_TIME,
MR_EVT_ARGS_ECC,
};
/*
* SAS controller properties
*/
struct megasas_ctrl_prop {
u16 seq_num;
u16 pred_fail_poll_interval;
u16 intr_throttle_count;
u16 intr_throttle_timeouts;
u8 rebuild_rate;
u8 patrol_read_rate;
u8 bgi_rate;
u8 cc_rate;
u8 recon_rate;
u8 cache_flush_interval;
u8 spinup_drv_count;
u8 spinup_delay;
u8 cluster_enable;
u8 coercion_mode;
u8 alarm_enable;
u8 disable_auto_rebuild;
u8 disable_battery_warn;
u8 ecc_bucket_size;
u16 ecc_bucket_leak_rate;
u8 restore_hotspare_on_insertion;
u8 expose_encl_devices;
u8 reserved[38];
} __attribute__ ((packed));
/*
* SAS controller information
*/
struct megasas_ctrl_info {
/*
* PCI device information
*/
struct {
u16 vendor_id;
u16 device_id;
u16 sub_vendor_id;
u16 sub_device_id;
u8 reserved[24];
} __attribute__ ((packed)) pci;
/*
* Host interface information
*/
struct {
u8 PCIX:1;
u8 PCIE:1;
u8 iSCSI:1;
u8 SAS_3G:1;
u8 reserved_0:4;
u8 reserved_1[6];
u8 port_count;
u64 port_addr[8];
} __attribute__ ((packed)) host_interface;
/*
* Device (backend) interface information
*/
struct {
u8 SPI:1;
u8 SAS_3G:1;
u8 SATA_1_5G:1;
u8 SATA_3G:1;
u8 reserved_0:4;
u8 reserved_1[6];
u8 port_count;
u64 port_addr[8];
} __attribute__ ((packed)) device_interface;
/*
* List of components residing in flash. All str are null terminated
*/
u32 image_check_word;
u32 image_component_count;
struct {
char name[8];
char version[32];
char build_date[16];
char built_time[16];
} __attribute__ ((packed)) image_component[8];
/*
* List of flash components that have been flashed on the card, but
* are not in use, pending reset of the adapter. This list will be
* empty if a flash operation has not occurred. All stings are null
* terminated
*/
u32 pending_image_component_count;
struct {
char name[8];
char version[32];
char build_date[16];
char build_time[16];
} __attribute__ ((packed)) pending_image_component[8];
u8 max_arms;
u8 max_spans;
u8 max_arrays;
u8 max_lds;
char product_name[80];
char serial_no[32];
/*
* Other physical/controller/operation information. Indicates the
* presence of the hardware
*/
struct {
u32 bbu:1;
u32 alarm:1;
u32 nvram:1;
u32 uart:1;
u32 reserved:28;
} __attribute__ ((packed)) hw_present;
u32 current_fw_time;
/*
* Maximum data transfer sizes
*/
u16 max_concurrent_cmds;
u16 max_sge_count;
u32 max_request_size;
/*
* Logical and physical device counts
*/
u16 ld_present_count;
u16 ld_degraded_count;
u16 ld_offline_count;
u16 pd_present_count;
u16 pd_disk_present_count;
u16 pd_disk_pred_failure_count;
u16 pd_disk_failed_count;
/*
* Memory size information
*/
u16 nvram_size;
u16 memory_size;
u16 flash_size;
/*
* Error counters
*/
u16 mem_correctable_error_count;
u16 mem_uncorrectable_error_count;
/*
* Cluster information
*/
u8 cluster_permitted;
u8 cluster_active;
/*
* Additional max data transfer sizes
*/
u16 max_strips_per_io;
/*
* Controller capabilities structures
*/
struct {
u32 raid_level_0:1;
u32 raid_level_1:1;
u32 raid_level_5:1;
u32 raid_level_1E:1;
u32 raid_level_6:1;
u32 reserved:27;
} __attribute__ ((packed)) raid_levels;
struct {
u32 rbld_rate:1;
u32 cc_rate:1;
u32 bgi_rate:1;
u32 recon_rate:1;
u32 patrol_rate:1;
u32 alarm_control:1;
u32 cluster_supported:1;
u32 bbu:1;
u32 spanning_allowed:1;
u32 dedicated_hotspares:1;
u32 revertible_hotspares:1;
u32 foreign_config_import:1;
u32 self_diagnostic:1;
u32 mixed_redundancy_arr:1;
u32 global_hot_spares:1;
u32 reserved:17;
} __attribute__ ((packed)) adapter_operations;
struct {
u32 read_policy:1;
u32 write_policy:1;
u32 io_policy:1;
u32 access_policy:1;
u32 disk_cache_policy:1;
u32 reserved:27;
} __attribute__ ((packed)) ld_operations;
struct {
u8 min;
u8 max;
u8 reserved[2];
} __attribute__ ((packed)) stripe_sz_ops;
struct {
u32 force_online:1;
u32 force_offline:1;
u32 force_rebuild:1;
u32 reserved:29;
} __attribute__ ((packed)) pd_operations;
struct {
u32 ctrl_supports_sas:1;
u32 ctrl_supports_sata:1;
u32 allow_mix_in_encl:1;
u32 allow_mix_in_ld:1;
u32 allow_sata_in_cluster:1;
u32 reserved:27;
} __attribute__ ((packed)) pd_mix_support;
/*
* Define ECC single-bit-error bucket information
*/
u8 ecc_bucket_count;
u8 reserved_2[11];
/*
* Include the controller properties (changeable items)
*/
struct megasas_ctrl_prop properties;
/*
* Define FW pkg version (set in envt v'bles on OEM basis)
*/
char package_version[0x60];
u8 pad[0x800 - 0x6a0];
} __attribute__ ((packed));
/*
* ===============================
* MegaRAID SAS driver definitions
* ===============================
*/
#define MEGASAS_MAX_PD_CHANNELS 2
#define MEGASAS_MAX_LD_CHANNELS 2
#define MEGASAS_MAX_CHANNELS (MEGASAS_MAX_PD_CHANNELS + \
MEGASAS_MAX_LD_CHANNELS)
#define MEGASAS_MAX_DEV_PER_CHANNEL 128
#define MEGASAS_DEFAULT_INIT_ID -1
#define MEGASAS_MAX_LUN 8
#define MEGASAS_MAX_LD 64
/*
* When SCSI mid-layer calls driver's reset routine, driver waits for
* MEGASAS_RESET_WAIT_TIME seconds for all outstanding IO to complete. Note
* that the driver cannot _actually_ abort or reset pending commands. While
* it is waiting for the commands to complete, it prints a diagnostic message
* every MEGASAS_RESET_NOTICE_INTERVAL seconds
*/
#define MEGASAS_RESET_WAIT_TIME 180
#define MEGASAS_RESET_NOTICE_INTERVAL 5
#define MEGASAS_IOCTL_CMD 0
/*
* FW reports the maximum of number of commands that it can accept (maximum
* commands that can be outstanding) at any time. The driver must report a
* lower number to the mid layer because it can issue a few internal commands
* itself (E.g, AEN, abort cmd, IOCTLs etc). The number of commands it needs
* is shown below
*/
#define MEGASAS_INT_CMDS 32
/*
* FW can accept both 32 and 64 bit SGLs. We want to allocate 32/64 bit
* SGLs based on the size of dma_addr_t
*/
#define IS_DMA64 (sizeof(dma_addr_t) == 8)
#define MFI_OB_INTR_STATUS_MASK 0x00000002
#define MFI_POLL_TIMEOUT_SECS 10
struct megasas_register_set {
u32 reserved_0[4]; /*0000h */
u32 inbound_msg_0; /*0010h */
u32 inbound_msg_1; /*0014h */
u32 outbound_msg_0; /*0018h */
u32 outbound_msg_1; /*001Ch */
u32 inbound_doorbell; /*0020h */
u32 inbound_intr_status; /*0024h */
u32 inbound_intr_mask; /*0028h */
u32 outbound_doorbell; /*002Ch */
u32 outbound_intr_status; /*0030h */
u32 outbound_intr_mask; /*0034h */
u32 reserved_1[2]; /*0038h */
u32 inbound_queue_port; /*0040h */
u32 outbound_queue_port; /*0044h */
u32 reserved_2; /*004Ch */
u32 index_registers[1004]; /*0050h */
} __attribute__ ((packed));
struct megasas_sge32 {
u32 phys_addr;
u32 length;
} __attribute__ ((packed));
struct megasas_sge64 {
u64 phys_addr;
u32 length;
} __attribute__ ((packed));
union megasas_sgl {
struct megasas_sge32 sge32[1];
struct megasas_sge64 sge64[1];
} __attribute__ ((packed));
struct megasas_header {
u8 cmd; /*00h */
u8 sense_len; /*01h */
u8 cmd_status; /*02h */
u8 scsi_status; /*03h */
u8 target_id; /*04h */
u8 lun; /*05h */
u8 cdb_len; /*06h */
u8 sge_count; /*07h */
u32 context; /*08h */
u32 pad_0; /*0Ch */
u16 flags; /*10h */
u16 timeout; /*12h */
u32 data_xferlen; /*14h */
} __attribute__ ((packed));
union megasas_sgl_frame {
struct megasas_sge32 sge32[8];
struct megasas_sge64 sge64[5];
} __attribute__ ((packed));
struct megasas_init_frame {
u8 cmd; /*00h */
u8 reserved_0; /*01h */
u8 cmd_status; /*02h */
u8 reserved_1; /*03h */
u32 reserved_2; /*04h */
u32 context; /*08h */
u32 pad_0; /*0Ch */
u16 flags; /*10h */
u16 reserved_3; /*12h */
u32 data_xfer_len; /*14h */
u32 queue_info_new_phys_addr_lo; /*18h */
u32 queue_info_new_phys_addr_hi; /*1Ch */
u32 queue_info_old_phys_addr_lo; /*20h */
u32 queue_info_old_phys_addr_hi; /*24h */
u32 reserved_4[6]; /*28h */
} __attribute__ ((packed));
struct megasas_init_queue_info {
u32 init_flags; /*00h */
u32 reply_queue_entries; /*04h */
u32 reply_queue_start_phys_addr_lo; /*08h */
u32 reply_queue_start_phys_addr_hi; /*0Ch */
u32 producer_index_phys_addr_lo; /*10h */
u32 producer_index_phys_addr_hi; /*14h */
u32 consumer_index_phys_addr_lo; /*18h */
u32 consumer_index_phys_addr_hi; /*1Ch */
} __attribute__ ((packed));
struct megasas_io_frame {
u8 cmd; /*00h */
u8 sense_len; /*01h */
u8 cmd_status; /*02h */
u8 scsi_status; /*03h */
u8 target_id; /*04h */
u8 access_byte; /*05h */
u8 reserved_0; /*06h */
u8 sge_count; /*07h */
u32 context; /*08h */
u32 pad_0; /*0Ch */
u16 flags; /*10h */
u16 timeout; /*12h */
u32 lba_count; /*14h */
u32 sense_buf_phys_addr_lo; /*18h */
u32 sense_buf_phys_addr_hi; /*1Ch */
u32 start_lba_lo; /*20h */
u32 start_lba_hi; /*24h */
union megasas_sgl sgl; /*28h */
} __attribute__ ((packed));
struct megasas_pthru_frame {
u8 cmd; /*00h */
u8 sense_len; /*01h */
u8 cmd_status; /*02h */
u8 scsi_status; /*03h */
u8 target_id; /*04h */
u8 lun; /*05h */
u8 cdb_len; /*06h */
u8 sge_count; /*07h */
u32 context; /*08h */
u32 pad_0; /*0Ch */
u16 flags; /*10h */
u16 timeout; /*12h */
u32 data_xfer_len; /*14h */
u32 sense_buf_phys_addr_lo; /*18h */
u32 sense_buf_phys_addr_hi; /*1Ch */
u8 cdb[16]; /*20h */
union megasas_sgl sgl; /*30h */
} __attribute__ ((packed));
struct megasas_dcmd_frame {
u8 cmd; /*00h */
u8 reserved_0; /*01h */
u8 cmd_status; /*02h */
u8 reserved_1[4]; /*03h */
u8 sge_count; /*07h */
u32 context; /*08h */
u32 pad_0; /*0Ch */
u16 flags; /*10h */
u16 timeout; /*12h */
u32 data_xfer_len; /*14h */
u32 opcode; /*18h */
union { /*1Ch */
u8 b[12];
u16 s[6];
u32 w[3];
} mbox;
union megasas_sgl sgl; /*28h */
} __attribute__ ((packed));
struct megasas_abort_frame {
u8 cmd; /*00h */
u8 reserved_0; /*01h */
u8 cmd_status; /*02h */
u8 reserved_1; /*03h */
u32 reserved_2; /*04h */
u32 context; /*08h */
u32 pad_0; /*0Ch */
u16 flags; /*10h */
u16 reserved_3; /*12h */
u32 reserved_4; /*14h */
u32 abort_context; /*18h */
u32 pad_1; /*1Ch */
u32 abort_mfi_phys_addr_lo; /*20h */
u32 abort_mfi_phys_addr_hi; /*24h */
u32 reserved_5[6]; /*28h */
} __attribute__ ((packed));
struct megasas_smp_frame {
u8 cmd; /*00h */
u8 reserved_1; /*01h */
u8 cmd_status; /*02h */
u8 connection_status; /*03h */
u8 reserved_2[3]; /*04h */
u8 sge_count; /*07h */
u32 context; /*08h */
u32 pad_0; /*0Ch */
u16 flags; /*10h */
u16 timeout; /*12h */
u32 data_xfer_len; /*14h */
u64 sas_addr; /*18h */
union {
struct megasas_sge32 sge32[2]; /* [0]: resp [1]: req */
struct megasas_sge64 sge64[2]; /* [0]: resp [1]: req */
} sgl;
} __attribute__ ((packed));
struct megasas_stp_frame {
u8 cmd; /*00h */
u8 reserved_1; /*01h */
u8 cmd_status; /*02h */
u8 reserved_2; /*03h */
u8 target_id; /*04h */
u8 reserved_3[2]; /*05h */
u8 sge_count; /*07h */
u32 context; /*08h */
u32 pad_0; /*0Ch */
u16 flags; /*10h */
u16 timeout; /*12h */
u32 data_xfer_len; /*14h */
u16 fis[10]; /*18h */
u32 stp_flags;
union {
struct megasas_sge32 sge32[2]; /* [0]: resp [1]: data */
struct megasas_sge64 sge64[2]; /* [0]: resp [1]: data */
} sgl;
} __attribute__ ((packed));
union megasas_frame {
struct megasas_header hdr;
struct megasas_init_frame init;
struct megasas_io_frame io;
struct megasas_pthru_frame pthru;
struct megasas_dcmd_frame dcmd;
struct megasas_abort_frame abort;
struct megasas_smp_frame smp;
struct megasas_stp_frame stp;
u8 raw_bytes[64];
};
struct megasas_cmd;
union megasas_evt_class_locale {
struct {
u16 locale;
u8 reserved;
s8 class;
} __attribute__ ((packed)) members;
u32 word;
} __attribute__ ((packed));
struct megasas_evt_log_info {
u32 newest_seq_num;
u32 oldest_seq_num;
u32 clear_seq_num;
u32 shutdown_seq_num;
u32 boot_seq_num;
} __attribute__ ((packed));
struct megasas_progress {
u16 progress;
u16 elapsed_seconds;
} __attribute__ ((packed));
struct megasas_evtarg_ld {
u16 target_id;
u8 ld_index;
u8 reserved;
} __attribute__ ((packed));
struct megasas_evtarg_pd {
u16 device_id;
u8 encl_index;
u8 slot_number;
} __attribute__ ((packed));
struct megasas_evt_detail {
u32 seq_num;
u32 time_stamp;
u32 code;
union megasas_evt_class_locale cl;
u8 arg_type;
u8 reserved1[15];
union {
struct {
struct megasas_evtarg_pd pd;
u8 cdb_length;
u8 sense_length;
u8 reserved[2];
u8 cdb[16];
u8 sense[64];
} __attribute__ ((packed)) cdbSense;
struct megasas_evtarg_ld ld;
struct {
struct megasas_evtarg_ld ld;
u64 count;
} __attribute__ ((packed)) ld_count;
struct {
u64 lba;
struct megasas_evtarg_ld ld;
} __attribute__ ((packed)) ld_lba;
struct {
struct megasas_evtarg_ld ld;
u32 prevOwner;
u32 newOwner;
} __attribute__ ((packed)) ld_owner;
struct {
u64 ld_lba;
u64 pd_lba;
struct megasas_evtarg_ld ld;
struct megasas_evtarg_pd pd;
} __attribute__ ((packed)) ld_lba_pd_lba;
struct {
struct megasas_evtarg_ld ld;
struct megasas_progress prog;
} __attribute__ ((packed)) ld_prog;
struct {
struct megasas_evtarg_ld ld;
u32 prev_state;
u32 new_state;
} __attribute__ ((packed)) ld_state;
struct {
u64 strip;
struct megasas_evtarg_ld ld;
} __attribute__ ((packed)) ld_strip;
struct megasas_evtarg_pd pd;
struct {
struct megasas_evtarg_pd pd;
u32 err;
} __attribute__ ((packed)) pd_err;
struct {
u64 lba;
struct megasas_evtarg_pd pd;
} __attribute__ ((packed)) pd_lba;
struct {
u64 lba;
struct megasas_evtarg_pd pd;
struct megasas_evtarg_ld ld;
} __attribute__ ((packed)) pd_lba_ld;
struct {
struct megasas_evtarg_pd pd;
struct megasas_progress prog;
} __attribute__ ((packed)) pd_prog;
struct {
struct megasas_evtarg_pd pd;
u32 prevState;
u32 newState;
} __attribute__ ((packed)) pd_state;
struct {
u16 vendorId;
u16 deviceId;
u16 subVendorId;
u16 subDeviceId;
} __attribute__ ((packed)) pci;
u32 rate;
char str[96];
struct {
u32 rtc;
u32 elapsedSeconds;
} __attribute__ ((packed)) time;
struct {
u32 ecar;
u32 elog;
char str[64];
} __attribute__ ((packed)) ecc;
u8 b[96];
u16 s[48];
u32 w[24];
u64 d[12];
} args;
char description[128];
} __attribute__ ((packed));
struct megasas_instance {
u32 *producer;
dma_addr_t producer_h;
u32 *consumer;
dma_addr_t consumer_h;
u32 *reply_queue;
dma_addr_t reply_queue_h;
unsigned long base_addr;
struct megasas_register_set __iomem *reg_set;
s8 init_id;
u8 reserved[3];
u16 max_num_sge;
u16 max_fw_cmds;
u32 max_sectors_per_req;
struct megasas_cmd **cmd_list;
struct list_head cmd_pool;
spinlock_t cmd_pool_lock;
struct dma_pool *frame_dma_pool;
struct dma_pool *sense_dma_pool;
struct megasas_evt_detail *evt_detail;
dma_addr_t evt_detail_h;
struct megasas_cmd *aen_cmd;
struct semaphore aen_mutex;
struct semaphore ioctl_sem;
struct Scsi_Host *host;
wait_queue_head_t int_cmd_wait_q;
wait_queue_head_t abort_cmd_wait_q;
struct pci_dev *pdev;
u32 unique_id;
u32 fw_outstanding;
u32 hw_crit_error;
spinlock_t instance_lock;
};
#define MEGASAS_IS_LOGICAL(scp) \
(scp->device->channel < MEGASAS_MAX_PD_CHANNELS) ? 0 : 1
#define MEGASAS_DEV_INDEX(inst, scp) \
((scp->device->channel % 2) * MEGASAS_MAX_DEV_PER_CHANNEL) + \
scp->device->id
struct megasas_cmd {
union megasas_frame *frame;
dma_addr_t frame_phys_addr;
u8 *sense;
dma_addr_t sense_phys_addr;
u32 index;
u8 sync_cmd;
u8 cmd_status;
u16 abort_aen;
struct list_head list;
struct scsi_cmnd *scmd;
struct megasas_instance *instance;
u32 frame_count;
};
#define MAX_MGMT_ADAPTERS 1024
#define MAX_IOCTL_SGE 16
struct megasas_iocpacket {
u16 host_no;
u16 __pad1;
u32 sgl_off;
u32 sge_count;
u32 sense_off;
u32 sense_len;
union {
u8 raw[128];
struct megasas_header hdr;
} frame;
struct iovec sgl[MAX_IOCTL_SGE];
} __attribute__ ((packed));
struct megasas_aen {
u16 host_no;
u16 __pad1;
u32 seq_num;
u32 class_locale_word;
} __attribute__ ((packed));
#ifdef CONFIG_COMPAT
struct compat_megasas_iocpacket {
u16 host_no;
u16 __pad1;
u32 sgl_off;
u32 sge_count;
u32 sense_off;
u32 sense_len;
union {
u8 raw[128];
struct megasas_header hdr;
} frame;
struct compat_iovec sgl[MAX_IOCTL_SGE];
} __attribute__ ((packed));
#define MEGASAS_IOC_FIRMWARE _IOWR('M', 1, struct compat_megasas_iocpacket)
#else
#define MEGASAS_IOC_FIRMWARE _IOWR('M', 1, struct megasas_iocpacket)
#endif
#define MEGASAS_IOC_GET_AEN _IOW('M', 3, struct megasas_aen)
struct megasas_mgmt_info {
u16 count;
struct megasas_instance *instance[MAX_MGMT_ADAPTERS];
int max_index;
};
#endif /*LSI_MEGARAID_SAS_H */
drivers/scsi/qla2xxx/qla_rscn.c
View file @ 7d6322b4
......@@ -330,6 +330,8 @@ qla2x00_update_login_fcport(scsi_qla_host_t *ha, struct mbx_entry *mbxstat,
fcport->flags &= ~FCF_FAILOVER_NEEDED;
fcport->iodesc_idx_sent = IODESC_INVALID_INDEX;
atomic_set(&fcport->state, FCS_ONLINE);
if (fcport->rport)
fc_remote_port_unblock(fcport->rport);
}
......
drivers/scsi/scsi_scan.c
View file @ 7d6322b4
......@@ -587,6 +587,7 @@ static int scsi_probe_lun(struct scsi_device *sdev, char *inq_result,
if (sdev->scsi_level >= 2 ||
(sdev->scsi_level == 1 && (inq_result[3] & 0x0f) == 1))
sdev->scsi_level++;
sdev->sdev_target->scsi_level = sdev->scsi_level;
return 0;
}
......@@ -771,6 +772,15 @@ static int scsi_add_lun(struct scsi_device *sdev, char *inq_result, int *bflags)
return SCSI_SCAN_LUN_PRESENT;
}
static inline void scsi_destroy_sdev(struct scsi_device *sdev)
{
if (sdev->host->hostt->slave_destroy)
sdev->host->hostt->slave_destroy(sdev);
transport_destroy_device(&sdev->sdev_gendev);
put_device(&sdev->sdev_gendev);
}
/**
* scsi_probe_and_add_lun - probe a LUN, if a LUN is found add it
* @starget: pointer to target device structure
......@@ -803,9 +813,9 @@ static int scsi_probe_and_add_lun(struct scsi_target *starget,
* The rescan flag is used as an optimization, the first scan of a
* host adapter calls into here with rescan == 0.
*/
if (rescan) {
sdev = scsi_device_lookup_by_target(starget, lun);
if (sdev) {
if (rescan || sdev->sdev_state != SDEV_CREATED) {
SCSI_LOG_SCAN_BUS(3, printk(KERN_INFO
"scsi scan: device exists on %s\n",
sdev->sdev_gendev.bus_id));
......@@ -820,8 +830,8 @@ static int scsi_probe_and_add_lun(struct scsi_target *starget,
sdev->model);
return SCSI_SCAN_LUN_PRESENT;
}
}
scsi_device_put(sdev);
} else
sdev = scsi_alloc_sdev(starget, lun, hostdata);
if (!sdev)
goto out;
......@@ -877,12 +887,8 @@ static int scsi_probe_and_add_lun(struct scsi_target *starget,
res = SCSI_SCAN_NO_RESPONSE;
}
}
} else {
if (sdev->host->hostt->slave_destroy)
sdev->host->hostt->slave_destroy(sdev);
transport_destroy_device(&sdev->sdev_gendev);
put_device(&sdev->sdev_gendev);
}
} else
scsi_destroy_sdev(sdev);
out:
return res;
}
......@@ -1054,7 +1060,7 @@ EXPORT_SYMBOL(int_to_scsilun);
* 0: scan completed (or no memory, so further scanning is futile)
* 1: no report lun scan, or not configured
**/
static int scsi_report_lun_scan(struct scsi_device *sdev, int bflags,
static int scsi_report_lun_scan(struct scsi_target *starget, int bflags,
int rescan)
{
char devname[64];
......@@ -1067,7 +1073,8 @@ static int scsi_report_lun_scan(struct scsi_device *sdev, int bflags,
struct scsi_lun *lunp, *lun_data;
u8 *data;
struct scsi_sense_hdr sshdr;
struct scsi_target *starget = scsi_target(sdev);
struct scsi_device *sdev;
struct Scsi_Host *shost = dev_to_shost(&starget->dev);
/*
* Only support SCSI-3 and up devices if BLIST_NOREPORTLUN is not set.
......@@ -1075,15 +1082,23 @@ static int scsi_report_lun_scan(struct scsi_device *sdev, int bflags,
* support more than 8 LUNs.
*/
if ((bflags & BLIST_NOREPORTLUN) ||
sdev->scsi_level < SCSI_2 ||
(sdev->scsi_level < SCSI_3 &&
(!(bflags & BLIST_REPORTLUN2) || sdev->host->max_lun <= 8)) )
starget->scsi_level < SCSI_2 ||
(starget->scsi_level < SCSI_3 &&
(!(bflags & BLIST_REPORTLUN2) || shost->max_lun <= 8)) )
return 1;
if (bflags & BLIST_NOLUN)
return 0;
if (!(sdev = scsi_device_lookup_by_target(starget, 0))) {
sdev = scsi_alloc_sdev(starget, 0, NULL);
if (!sdev)
return 0;
if (scsi_device_get(sdev))
return 0;
}
sprintf(devname, "host %d channel %d id %d",
sdev->host->host_no, sdev->channel, sdev->id);
shost->host_no, sdev->channel, sdev->id);
/*
* Allocate enough to hold the header (the same size as one scsi_lun)
......@@ -1098,8 +1113,10 @@ static int scsi_report_lun_scan(struct scsi_device *sdev, int bflags,
length = (max_scsi_report_luns + 1) * sizeof(struct scsi_lun);
lun_data = kmalloc(length, GFP_ATOMIC |
(sdev->host->unchecked_isa_dma ? __GFP_DMA : 0));
if (!lun_data)
if (!lun_data) {
printk(ALLOC_FAILURE_MSG, __FUNCTION__);
goto out;
}
scsi_cmd[0] = REPORT_LUNS;
......@@ -1201,10 +1218,6 @@ static int scsi_report_lun_scan(struct scsi_device *sdev, int bflags,
for (i = 0; i < sizeof(struct scsi_lun); i++)
printk("%02x", data[i]);
printk(" has a LUN larger than currently supported.\n");
} else if (lun == 0) {
/*
* LUN 0 has already been scanned.
*/
} else if (lun > sdev->host->max_lun) {
printk(KERN_WARNING "scsi: %s lun%d has a LUN larger"
" than allowed by the host adapter\n",
......@@ -1227,13 +1240,13 @@ static int scsi_report_lun_scan(struct scsi_device *sdev, int bflags,
}
kfree(lun_data);
return 0;
out:
scsi_device_put(sdev);
if (sdev->sdev_state == SDEV_CREATED)
/*
* We are out of memory, don't try scanning any further.
* the sdev we used didn't appear in the report luns scan
*/
printk(ALLOC_FAILURE_MSG, __FUNCTION__);
scsi_destroy_sdev(sdev);
return 0;
}
......@@ -1299,7 +1312,6 @@ static void __scsi_scan_target(struct device *parent, unsigned int channel,
struct Scsi_Host *shost = dev_to_shost(parent);
int bflags = 0;
int res;
struct scsi_device *sdev = NULL;
struct scsi_target *starget;
if (shost->this_id == id)
......@@ -1325,27 +1337,16 @@ static void __scsi_scan_target(struct device *parent, unsigned int channel,
* Scan LUN 0, if there is some response, scan further. Ideally, we
* would not configure LUN 0 until all LUNs are scanned.
*/
res = scsi_probe_and_add_lun(starget, 0, &bflags, &sdev, rescan, NULL);
if (res == SCSI_SCAN_LUN_PRESENT) {
if (scsi_report_lun_scan(sdev, bflags, rescan) != 0)
res = scsi_probe_and_add_lun(starget, 0, &bflags, NULL, rescan, NULL);
if (res == SCSI_SCAN_LUN_PRESENT || res == SCSI_SCAN_TARGET_PRESENT) {
if (scsi_report_lun_scan(starget, bflags, rescan) != 0)
/*
* The REPORT LUN did not scan the target,
* do a sequential scan.
*/
scsi_sequential_lun_scan(starget, bflags,
res, sdev->scsi_level, rescan);
} else if (res == SCSI_SCAN_TARGET_PRESENT) {
/*
* There's a target here, but lun 0 is offline so we
* can't use the report_lun scan. Fall back to a
* sequential lun scan with a bflags of SPARSELUN and
* a default scsi level of SCSI_2
*/
scsi_sequential_lun_scan(starget, BLIST_SPARSELUN,
SCSI_SCAN_TARGET_PRESENT, SCSI_2, rescan);
res, starget->scsi_level, rescan);
}
if (sdev)
scsi_device_put(sdev);
out_reap:
/* now determine if the target has any children at all
......@@ -1542,10 +1543,7 @@ void scsi_free_host_dev(struct scsi_device *sdev)
{
BUG_ON(sdev->id != sdev->host->this_id);
if (sdev->host->hostt->slave_destroy)
sdev->host->hostt->slave_destroy(sdev);
transport_destroy_device(&sdev->sdev_gendev);
put_device(&sdev->sdev_gendev);
scsi_destroy_sdev(sdev);
}
EXPORT_SYMBOL(scsi_free_host_dev);
drivers/scsi/scsi_transport_sas.c
View file @ 7d6322b4
......@@ -628,17 +628,16 @@ sas_rphy_delete(struct sas_rphy *rphy)
struct Scsi_Host *shost = dev_to_shost(parent->dev.parent);
struct sas_host_attrs *sas_host = to_sas_host_attrs(shost);
transport_destroy_device(&rphy->dev);
scsi_remove_target(dev);
scsi_remove_target(&rphy->dev);
transport_remove_device(dev);
device_del(dev);
transport_destroy_device(dev);
spin_lock(&sas_host->lock);
list_del(&rphy->list);
spin_unlock(&sas_host->lock);
transport_remove_device(dev);
device_del(dev);
transport_destroy_device(dev);
put_device(&parent->dev);
}
EXPORT_SYMBOL(sas_rphy_delete);
......
include/linux/pci_ids.h
View file @ 7d6322b4
......@@ -185,6 +185,7 @@
#define PCI_DEVICE_ID_LSI_61C102 0x0901
#define PCI_DEVICE_ID_LSI_63C815 0x1000
#define PCI_DEVICE_ID_LSI_SAS1064 0x0050
#define PCI_DEVICE_ID_LSI_SAS1064R 0x0411
#define PCI_DEVICE_ID_LSI_SAS1066 0x005E
#define PCI_DEVICE_ID_LSI_SAS1068 0x0054
#define PCI_DEVICE_ID_LSI_SAS1064A 0x005C
......@@ -560,6 +561,7 @@
#define PCI_VENDOR_ID_DELL 0x1028
#define PCI_DEVICE_ID_DELL_RACIII 0x0008
#define PCI_DEVICE_ID_DELL_RAC4 0x0012
#define PCI_DEVICE_ID_DELL_PERC5 0x0015
#define PCI_VENDOR_ID_MATROX 0x102B
#define PCI_DEVICE_ID_MATROX_MGA_2 0x0518
......
include/scsi/scsi_device.h
View file @ 7d6322b4
......@@ -163,6 +163,7 @@ struct scsi_target {
unsigned int id; /* target id ... replace
* scsi_device.id eventually */
unsigned long create:1; /* signal that it needs to be added */
char scsi_level;
void *hostdata; /* available to low-level driver */
unsigned long starget_data[0]; /* for the transport */
/* starget_data must be the last element!!!! */
......
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