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[SCSI] qla2xxx: Collapse RISC-RAM retrieval code during a firmware-dump. 

Use the more efficient read-DMA'ble-buffer mailbox commands
rather than reading a single word/dword at a time.  We also
remove a bulk of the duplicate mailbox command-handling codes in
favor of more generic read-memory() routines (qla2xxx_dump_ram()
and qla24xx_dump_ram()).

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This commit is contained in:
Andrew Vasquez 2008-04-24 15:21:22 -07:00 committed by James Bottomley
parent 6fe07aaffb
commit c5722708c2
1 changed files with 146 additions and 254 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

400
drivers/scsi/qla2xxx/qla_dbg.c
View File

@ -38,28 +38,38 @@ qla2xxx_copy_queues(scsi_qla_host_t *ha, void *ptr)
}
static int
qla24xx_dump_memory(scsi_qla_host_t *ha, uint32_t *code_ram,
uint32_t cram_size, uint32_t *ext_mem, void **nxt)
qla24xx_dump_ram(scsi_qla_host_t *ha, uint32_t addr, uint32_t *ram,
uint32_t ram_dwords, void **nxt)
{
int rval;
uint32_t cnt, stat, timer, risc_address, ext_mem_cnt;
uint16_t mb[4];
uint32_t cnt, stat, timer, dwords, idx;
uint16_t mb0;
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
dma_addr_t dump_dma = ha->gid_list_dma;
uint32_t *dump = (uint32_t *)ha->gid_list;
rval = QLA_SUCCESS;
risc_address = ext_mem_cnt = 0;
memset(mb, 0, sizeof(mb));
mb0 = 0;
/* Code RAM. */
risc_address = 0x20000;
WRT_REG_WORD(&reg->mailbox0, MBC_READ_RAM_EXTENDED);
WRT_REG_WORD(&reg->mailbox0, MBC_DUMP_RISC_RAM_EXTENDED);
clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
for (cnt = 0; cnt < cram_size / 4 && rval == QLA_SUCCESS;
cnt++, risc_address++) {
WRT_REG_WORD(&reg->mailbox1, LSW(risc_address));
WRT_REG_WORD(&reg->mailbox8, MSW(risc_address));
RD_REG_WORD(&reg->mailbox8);
dwords = GID_LIST_SIZE / 4;
for (cnt = 0; cnt < ram_dwords && rval == QLA_SUCCESS;
cnt += dwords, addr += dwords) {
if (cnt + dwords > ram_dwords)
dwords = ram_dwords - cnt;
WRT_REG_WORD(&reg->mailbox1, LSW(addr));
WRT_REG_WORD(&reg->mailbox8, MSW(addr));
WRT_REG_WORD(&reg->mailbox2, MSW(dump_dma));
WRT_REG_WORD(&reg->mailbox3, LSW(dump_dma));
WRT_REG_WORD(&reg->mailbox6, MSW(MSD(dump_dma)));
WRT_REG_WORD(&reg->mailbox7, LSW(MSD(dump_dma)));
WRT_REG_WORD(&reg->mailbox4, MSW(dwords));
WRT_REG_WORD(&reg->mailbox5, LSW(dwords));
WRT_REG_DWORD(&reg->hccr, HCCRX_SET_HOST_INT);
for (timer = 6000000; timer; timer--) {
@ -73,9 +83,7 @@ qla24xx_dump_memory(scsi_qla_host_t *ha, uint32_t *code_ram,
set_bit(MBX_INTERRUPT,
&ha->mbx_cmd_flags);
mb[0] = RD_REG_WORD(&reg->mailbox0);
mb[2] = RD_REG_WORD(&reg->mailbox2);
mb[3] = RD_REG_WORD(&reg->mailbox3);
mb0 = RD_REG_WORD(&reg->mailbox0);
WRT_REG_DWORD(&reg->hccr,
HCCRX_CLR_RISC_INT);
@ -91,67 +99,34 @@ qla24xx_dump_memory(scsi_qla_host_t *ha, uint32_t *code_ram,
}
if (test_and_clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags)) {
rval = mb[0] & MBS_MASK;
code_ram[cnt] = htonl((mb[3] << 16) | mb[2]);
rval = mb0 & MBS_MASK;
for (idx = 0; idx < dwords; idx++)
ram[cnt + idx] = swab32(dump[idx]);
} else {
rval = QLA_FUNCTION_FAILED;
}
}
if (rval == QLA_SUCCESS) {
/* External Memory. */
risc_address = 0x100000;
ext_mem_cnt = ha->fw_memory_size - 0x100000 + 1;
WRT_REG_WORD(&reg->mailbox0, MBC_READ_RAM_EXTENDED);
clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
}
for (cnt = 0; cnt < ext_mem_cnt && rval == QLA_SUCCESS;
cnt++, risc_address++) {
WRT_REG_WORD(&reg->mailbox1, LSW(risc_address));
WRT_REG_WORD(&reg->mailbox8, MSW(risc_address));
RD_REG_WORD(&reg->mailbox8);
WRT_REG_DWORD(&reg->hccr, HCCRX_SET_HOST_INT);
for (timer = 6000000; timer; timer--) {
/* Check for pending interrupts. */
stat = RD_REG_DWORD(&reg->host_status);
if (stat & HSRX_RISC_INT) {
stat &= 0xff;
if (stat == 0x1 || stat == 0x2 ||
stat == 0x10 || stat == 0x11) {
set_bit(MBX_INTERRUPT,
&ha->mbx_cmd_flags);
mb[0] = RD_REG_WORD(&reg->mailbox0);
mb[2] = RD_REG_WORD(&reg->mailbox2);
mb[3] = RD_REG_WORD(&reg->mailbox3);
WRT_REG_DWORD(&reg->hccr,
HCCRX_CLR_RISC_INT);
RD_REG_DWORD(&reg->hccr);
break;
}
/* Clear this intr; it wasn't a mailbox intr */
WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
RD_REG_DWORD(&reg->hccr);
}
udelay(5);
}
if (test_and_clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags)) {
rval = mb[0] & MBS_MASK;
ext_mem[cnt] = htonl((mb[3] << 16) | mb[2]);
} else {
rval = QLA_FUNCTION_FAILED;
}
}
*nxt = rval == QLA_SUCCESS ? &ext_mem[cnt]: NULL;
*nxt = rval == QLA_SUCCESS ? &ram[cnt]: NULL;
return rval;
}
static int
qla24xx_dump_memory(scsi_qla_host_t *ha, uint32_t *code_ram,
uint32_t cram_size, void **nxt)
{
int rval;
/* Code RAM. */
rval = qla24xx_dump_ram(ha, 0x20000, code_ram, cram_size / 4, nxt);
if (rval != QLA_SUCCESS)
return rval;
/* External Memory. */
return qla24xx_dump_ram(ha, 0x100000, *nxt,
ha->fw_memory_size - 0x100000 + 1, nxt);
}
static uint32_t *
qla24xx_read_window(struct device_reg_24xx __iomem *reg, uint32_t iobase,
uint32_t count, uint32_t *buf)
@ -239,6 +214,90 @@ qla24xx_soft_reset(scsi_qla_host_t *ha)
return rval;
}
static int
qla2xxx_dump_ram(scsi_qla_host_t *ha, uint32_t addr, uint16_t *ram,
uint16_t ram_words, void **nxt)
{
int rval;
uint32_t cnt, stat, timer, words, idx;
uint16_t mb0;
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
dma_addr_t dump_dma = ha->gid_list_dma;
uint16_t *dump = (uint16_t *)ha->gid_list;
rval = QLA_SUCCESS;
mb0 = 0;
WRT_MAILBOX_REG(ha, reg, 0, MBC_DUMP_RISC_RAM_EXTENDED);
clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
words = GID_LIST_SIZE / 2;
for (cnt = 0; cnt < ram_words && rval == QLA_SUCCESS;
cnt += words, addr += words) {
if (cnt + words > ram_words)
words = ram_words - cnt;
WRT_MAILBOX_REG(ha, reg, 1, LSW(addr));
WRT_MAILBOX_REG(ha, reg, 8, MSW(addr));
WRT_MAILBOX_REG(ha, reg, 2, MSW(dump_dma));
WRT_MAILBOX_REG(ha, reg, 3, LSW(dump_dma));
WRT_MAILBOX_REG(ha, reg, 6, MSW(MSD(dump_dma)));
WRT_MAILBOX_REG(ha, reg, 7, LSW(MSD(dump_dma)));
WRT_MAILBOX_REG(ha, reg, 4, words);
WRT_REG_WORD(&reg->hccr, HCCR_SET_HOST_INT);
for (timer = 6000000; timer; timer--) {
/* Check for pending interrupts. */
stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
if (stat & HSR_RISC_INT) {
stat &= 0xff;
if (stat == 0x1 || stat == 0x2) {
set_bit(MBX_INTERRUPT,
&ha->mbx_cmd_flags);
mb0 = RD_MAILBOX_REG(ha, reg, 0);
/* Release mailbox registers. */
WRT_REG_WORD(&reg->semaphore, 0);
WRT_REG_WORD(&reg->hccr,
HCCR_CLR_RISC_INT);
RD_REG_WORD(&reg->hccr);
break;
} else if (stat == 0x10 || stat == 0x11) {
set_bit(MBX_INTERRUPT,
&ha->mbx_cmd_flags);
mb0 = RD_MAILBOX_REG(ha, reg, 0);
WRT_REG_WORD(&reg->hccr,
HCCR_CLR_RISC_INT);
RD_REG_WORD(&reg->hccr);
break;
}
/* clear this intr; it wasn't a mailbox intr */
WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
RD_REG_WORD(&reg->hccr);
}
udelay(5);
}
if (test_and_clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags)) {
rval = mb0 & MBS_MASK;
for (idx = 0; idx < words; idx++)
ram[cnt + idx] = swab16(dump[idx]);
} else {
rval = QLA_FUNCTION_FAILED;
}
}
*nxt = rval == QLA_SUCCESS ? &ram[cnt]: NULL;
return rval;
}
static inline void
qla2xxx_read_window(struct device_reg_2xxx __iomem *reg, uint32_t count,
uint16_t *buf)
@ -258,19 +317,14 @@ void
qla2300_fw_dump(scsi_qla_host_t *ha, int hardware_locked)
{
int rval;
uint32_t cnt, timer;
uint32_t risc_address;
uint16_t mb0, mb2;
uint32_t cnt;
uint32_t stat;
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
uint16_t __iomem *dmp_reg;
unsigned long flags;
struct qla2300_fw_dump *fw;
uint32_t data_ram_cnt;
void *nxt;
risc_address = data_ram_cnt = 0;
mb0 = mb2 = 0;
flags = 0;
if (!hardware_locked)
@ -388,185 +442,23 @@ qla2300_fw_dump(scsi_qla_host_t *ha, int hardware_locked)
}
}
if (rval == QLA_SUCCESS) {
/* Get RISC SRAM. */
risc_address = 0x800;
WRT_MAILBOX_REG(ha, reg, 0, MBC_READ_RAM_WORD);
clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
}
for (cnt = 0; cnt < sizeof(fw->risc_ram) / 2 && rval == QLA_SUCCESS;
cnt++, risc_address++) {
WRT_MAILBOX_REG(ha, reg, 1, (uint16_t)risc_address);
WRT_REG_WORD(&reg->hccr, HCCR_SET_HOST_INT);
/* Get RISC SRAM. */
if (rval == QLA_SUCCESS)
rval = qla2xxx_dump_ram(ha, 0x800, fw->risc_ram,
sizeof(fw->risc_ram) / 2, &nxt);
for (timer = 6000000; timer; timer--) {
/* Check for pending interrupts. */
stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
if (stat & HSR_RISC_INT) {
stat &= 0xff;
/* Get stack SRAM. */
if (rval == QLA_SUCCESS)
rval = qla2xxx_dump_ram(ha, 0x10000, fw->stack_ram,
sizeof(fw->stack_ram) / 2, &nxt);
if (stat == 0x1 || stat == 0x2) {
set_bit(MBX_INTERRUPT,
&ha->mbx_cmd_flags);
mb0 = RD_MAILBOX_REG(ha, reg, 0);
mb2 = RD_MAILBOX_REG(ha, reg, 2);
/* Release mailbox registers. */
WRT_REG_WORD(&reg->semaphore, 0);
WRT_REG_WORD(&reg->hccr,
HCCR_CLR_RISC_INT);
RD_REG_WORD(&reg->hccr);
break;
} else if (stat == 0x10 || stat == 0x11) {
set_bit(MBX_INTERRUPT,
&ha->mbx_cmd_flags);
mb0 = RD_MAILBOX_REG(ha, reg, 0);
mb2 = RD_MAILBOX_REG(ha, reg, 2);
WRT_REG_WORD(&reg->hccr,
HCCR_CLR_RISC_INT);
RD_REG_WORD(&reg->hccr);
break;
}
/* clear this intr; it wasn't a mailbox intr */
WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
RD_REG_WORD(&reg->hccr);
}
udelay(5);
}
if (test_and_clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags)) {
rval = mb0 & MBS_MASK;
fw->risc_ram[cnt] = htons(mb2);
} else {
rval = QLA_FUNCTION_FAILED;
}
}
if (rval == QLA_SUCCESS) {
/* Get stack SRAM. */
risc_address = 0x10000;
WRT_MAILBOX_REG(ha, reg, 0, MBC_READ_RAM_EXTENDED);
clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
}
for (cnt = 0; cnt < sizeof(fw->stack_ram) / 2 && rval == QLA_SUCCESS;
cnt++, risc_address++) {
WRT_MAILBOX_REG(ha, reg, 1, LSW(risc_address));
WRT_MAILBOX_REG(ha, reg, 8, MSW(risc_address));
WRT_REG_WORD(&reg->hccr, HCCR_SET_HOST_INT);
for (timer = 6000000; timer; timer--) {
/* Check for pending interrupts. */
stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
if (stat & HSR_RISC_INT) {
stat &= 0xff;
if (stat == 0x1 || stat == 0x2) {
set_bit(MBX_INTERRUPT,
&ha->mbx_cmd_flags);
mb0 = RD_MAILBOX_REG(ha, reg, 0);
mb2 = RD_MAILBOX_REG(ha, reg, 2);
/* Release mailbox registers. */
WRT_REG_WORD(&reg->semaphore, 0);
WRT_REG_WORD(&reg->hccr,
HCCR_CLR_RISC_INT);
RD_REG_WORD(&reg->hccr);
break;
} else if (stat == 0x10 || stat == 0x11) {
set_bit(MBX_INTERRUPT,
&ha->mbx_cmd_flags);
mb0 = RD_MAILBOX_REG(ha, reg, 0);
mb2 = RD_MAILBOX_REG(ha, reg, 2);
WRT_REG_WORD(&reg->hccr,
HCCR_CLR_RISC_INT);
RD_REG_WORD(&reg->hccr);
break;
}
/* clear this intr; it wasn't a mailbox intr */
WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
RD_REG_WORD(&reg->hccr);
}
udelay(5);
}
if (test_and_clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags)) {
rval = mb0 & MBS_MASK;
fw->stack_ram[cnt] = htons(mb2);
} else {
rval = QLA_FUNCTION_FAILED;
}
}
if (rval == QLA_SUCCESS) {
/* Get data SRAM. */
risc_address = 0x11000;
data_ram_cnt = ha->fw_memory_size - risc_address + 1;
WRT_MAILBOX_REG(ha, reg, 0, MBC_READ_RAM_EXTENDED);
clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
}
for (cnt = 0; cnt < data_ram_cnt && rval == QLA_SUCCESS;
cnt++, risc_address++) {
WRT_MAILBOX_REG(ha, reg, 1, LSW(risc_address));
WRT_MAILBOX_REG(ha, reg, 8, MSW(risc_address));
WRT_REG_WORD(&reg->hccr, HCCR_SET_HOST_INT);
for (timer = 6000000; timer; timer--) {
/* Check for pending interrupts. */
stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
if (stat & HSR_RISC_INT) {
stat &= 0xff;
if (stat == 0x1 || stat == 0x2) {
set_bit(MBX_INTERRUPT,
&ha->mbx_cmd_flags);
mb0 = RD_MAILBOX_REG(ha, reg, 0);
mb2 = RD_MAILBOX_REG(ha, reg, 2);
/* Release mailbox registers. */
WRT_REG_WORD(&reg->semaphore, 0);
WRT_REG_WORD(&reg->hccr,
HCCR_CLR_RISC_INT);
RD_REG_WORD(&reg->hccr);
break;
} else if (stat == 0x10 || stat == 0x11) {
set_bit(MBX_INTERRUPT,
&ha->mbx_cmd_flags);
mb0 = RD_MAILBOX_REG(ha, reg, 0);
mb2 = RD_MAILBOX_REG(ha, reg, 2);
WRT_REG_WORD(&reg->hccr,
HCCR_CLR_RISC_INT);
RD_REG_WORD(&reg->hccr);
break;
}
/* clear this intr; it wasn't a mailbox intr */
WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
RD_REG_WORD(&reg->hccr);
}
udelay(5);
}
if (test_and_clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags)) {
rval = mb0 & MBS_MASK;
fw->data_ram[cnt] = htons(mb2);
} else {
rval = QLA_FUNCTION_FAILED;
}
}
/* Get data SRAM. */
if (rval == QLA_SUCCESS)
rval = qla2xxx_dump_ram(ha, 0x11000, fw->data_ram,
ha->fw_memory_size - 0x11000 + 1, &nxt);
if (rval == QLA_SUCCESS)
qla2xxx_copy_queues(ha, &fw->data_ram[cnt]);
qla2xxx_copy_queues(ha, nxt);
if (rval != QLA_SUCCESS) {
qla_printk(KERN_WARNING, ha,
@ -1010,7 +902,7 @@ qla24xx_fw_dump(scsi_qla_host_t *ha, int hardware_locked)
goto qla24xx_fw_dump_failed_0;
rval = qla24xx_dump_memory(ha, fw->code_ram, sizeof(fw->code_ram),
fw->ext_mem, &nxt);
&nxt);
if (rval != QLA_SUCCESS)
goto qla24xx_fw_dump_failed_0;
@ -1318,7 +1210,7 @@ qla25xx_fw_dump(scsi_qla_host_t *ha, int hardware_locked)
goto qla25xx_fw_dump_failed_0;
rval = qla24xx_dump_memory(ha, fw->code_ram, sizeof(fw->code_ram),
fw->ext_mem, &nxt);
&nxt);
if (rval != QLA_SUCCESS)
goto qla25xx_fw_dump_failed_0;