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authorAndrew Vasquez <andrew.vasquez@qlogic.com>2009-01-05 11:18:09 -0800
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2009-01-07 15:50:59 -0600
commitd63ab53394f408f9e59f5b6ba0580f8c6ef2357a (patch)
tree7a1d17ecdfa754ed0819c3104a09a148c078599b /drivers/scsi/qla2xxx/qla_dbg.c
parentbb99de6703526ebed42e29b8dee402df235f28c7 (diff)
[SCSI] qla2xxx: Correct MQ-chain information retrieval during a firmware dump.
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>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_dbg.c')
-rw-r--r--drivers/scsi/qla2xxx/qla_dbg.c77
1 files changed, 40 insertions, 37 deletions
diff --git a/drivers/scsi/qla2xxx/qla_dbg.c b/drivers/scsi/qla2xxx/qla_dbg.c
index 49040ed3cea8..4f478364fa43 100644
--- a/drivers/scsi/qla2xxx/qla_dbg.c
+++ b/drivers/scsi/qla2xxx/qla_dbg.c
@@ -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);