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[SCSI] qla2xxx: Correct MQ-chain information retrieval during a firmware dump.

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Original code would not read request/response queue pointers.
Also, collapse code into a helper qla25xx_copy_mq() function in
preparation for newer ISP parts.

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 2009-01-05 11:18:09 -08:00 committed by James Bottomley
parent bb99de6703
commit d63ab53394
1 changed files with 40 additions and 37 deletions
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77
drivers/scsi/qla2xxx/qla_dbg.c
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@ -347,6 +347,39 @@ qla25xx_copy_fce(struct qla_hw_data *ha, void *ptr, uint32_t **last_chain)
return iter_reg;
}
static inline void *
qla25xx_copy_mq(struct qla_hw_data *ha, void *ptr, uint32_t **last_chain)
{
uint32_t cnt, que_idx;
uint8_t req_cnt, rsp_cnt, que_cnt;
struct qla2xxx_mq_chain *mq = ptr;
struct device_reg_25xxmq __iomem *reg;
if (!ha->mqenable)
return ptr;
mq = ptr;
*last_chain = &mq->type;
mq->type = __constant_htonl(DUMP_CHAIN_MQ);
mq->chain_size = __constant_htonl(sizeof(struct qla2xxx_mq_chain));
req_cnt = find_first_zero_bit(ha->req_qid_map, ha->max_queues);
rsp_cnt = find_first_zero_bit(ha->rsp_qid_map, ha->max_queues);
que_cnt = req_cnt > rsp_cnt ? req_cnt : rsp_cnt;
mq->count = htonl(que_cnt);
for (cnt = 0; cnt < que_cnt; cnt++) {
reg = (struct device_reg_25xxmq *) ((void *)
ha->mqiobase + cnt * QLA_QUE_PAGE);
que_idx = cnt * 4;
mq->qregs[que_idx] = htonl(RD_REG_DWORD(&reg->req_q_in));
mq->qregs[que_idx+1] = htonl(RD_REG_DWORD(&reg->req_q_out));
mq->qregs[que_idx+2] = htonl(RD_REG_DWORD(&reg->rsp_q_in));
mq->qregs[que_idx+3] = htonl(RD_REG_DWORD(&reg->rsp_q_out));
}
return ptr + sizeof(struct qla2xxx_mq_chain);
}
/**
* qla2300_fw_dump() - Dumps binary data from the 2300 firmware.
* @ha: HA context
@ -979,19 +1012,14 @@ qla25xx_fw_dump(scsi_qla_host_t *vha, int hardware_locked)
uint32_t risc_address;
struct qla_hw_data *ha = vha->hw;
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
struct device_reg_25xxmq __iomem *reg25;
uint32_t __iomem *dmp_reg;
uint32_t *iter_reg;
uint16_t __iomem *mbx_reg;
unsigned long flags;
struct qla25xx_fw_dump *fw;
uint32_t ext_mem_cnt;
void *nxt;
void *nxt, *nxt_chain;
uint32_t *last_chain = NULL;
struct qla2xxx_mq_chain *mq = NULL;
uint32_t qreg_size;
uint8_t req_cnt, rsp_cnt, que_cnt;
uint32_t que_idx;
struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
risc_address = ext_mem_cnt = 0;
@ -1038,29 +1066,6 @@ qla25xx_fw_dump(scsi_qla_host_t *vha, int hardware_locked)
fw->pcie_regs[2] = htonl(RD_REG_DWORD(dmp_reg));
fw->pcie_regs[3] = htonl(RD_REG_DWORD(&reg->iobase_window));
/* Multi queue registers */
if (ha->mqenable) {
qreg_size = sizeof(struct qla2xxx_mq_chain);
mq = kzalloc(qreg_size, GFP_KERNEL);
if (!mq)
goto qla25xx_fw_dump_failed_0;
req_cnt = find_first_zero_bit(ha->req_qid_map, ha->max_queues);
rsp_cnt = find_first_zero_bit(ha->rsp_qid_map, ha->max_queues);
que_cnt = req_cnt > rsp_cnt ? req_cnt : rsp_cnt;
mq->count = htonl(que_cnt);
mq->chain_size = htonl(qreg_size);
last_chain = &mq->type;
mq->type = __constant_htonl(DUMP_CHAIN_MQ);
for (cnt = 0; cnt < que_cnt; cnt++) {
reg25 = (struct device_reg_25xxmq *) ((void *)
ha->mqiobase + cnt * QLA_QUE_PAGE);
que_idx = cnt * 4;
mq->qregs[que_idx] = htonl(reg25->req_q_in);
mq->qregs[que_idx+1] = htonl(reg25->req_q_out);
mq->qregs[que_idx+2] = htonl(reg25->rsp_q_in);
mq->qregs[que_idx+3] = htonl(reg25->rsp_q_out);
}
}
WRT_REG_DWORD(&reg->iobase_window, 0x00);
RD_REG_DWORD(&reg->iobase_window);
@ -1278,6 +1283,10 @@ qla25xx_fw_dump(scsi_qla_host_t *vha, int hardware_locked)
iter_reg = qla24xx_read_window(reg, 0x61B0, 16, iter_reg);
qla24xx_read_window(reg, 0x6F00, 16, iter_reg);
/* Multi queue registers */
nxt_chain = qla25xx_copy_mq(ha, (void *)ha->fw_dump + ha->chain_offset,
&last_chain);
rval = qla24xx_soft_reset(ha);
if (rval != QLA_SUCCESS)
goto qla25xx_fw_dump_failed_0;
@ -1291,14 +1300,8 @@ qla25xx_fw_dump(scsi_qla_host_t *vha, int hardware_locked)
nxt = qla24xx_copy_eft(ha, nxt);
/* Chain entries. */
if (ha->mqenable) {
memcpy(nxt, mq, qreg_size);
kfree(mq);
nxt += qreg_size;
}
qla25xx_copy_fce(ha, nxt, &last_chain);
/* Chain entries -- started with MQ. */
qla25xx_copy_fce(ha, nxt_chain, &last_chain);
if (last_chain) {
ha->fw_dump->version |= __constant_htonl(DUMP_CHAIN_VARIANT);
*last_chain |= __constant_htonl(DUMP_CHAIN_LAST);