From d14e72fb859cf9a767ce3758342466883611cc57 Mon Sep 17 00:00:00 2001 From: Himanshu Madhani Date: Thu, 9 Apr 2015 15:00:03 -0400 Subject: [PATCH] qla2xxx: Add debugging info for MBX timeout. Signed-off-by: Giridhar Malavali Signed-off-by: Himanshu Madhani Reviewed-by: Hannes Reinecke Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_dbg.c | 4 +- drivers/scsi/qla2xxx/qla_def.h | 2 + drivers/scsi/qla2xxx/qla_init.c | 68 ++++++++++++++++++++++++++++----- drivers/scsi/qla2xxx/qla_mbx.c | 16 +++++++- 4 files changed, 77 insertions(+), 13 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_dbg.c b/drivers/scsi/qla2xxx/qla_dbg.c index 5774c53dd257..b06b6b5a11c5 100644 --- a/drivers/scsi/qla2xxx/qla_dbg.c +++ b/drivers/scsi/qla2xxx/qla_dbg.c @@ -11,9 +11,9 @@ * ---------------------------------------------------------------------- * | Level | Last Value Used | Holes | * ---------------------------------------------------------------------- - * | Module Init and Probe | 0x017d | 0x0144,0x0146 | + * | Module Init and Probe | 0x017f | 0x0146 | * | | | 0x015b-0x0160 | - * | | | 0x016e-0x0170 | + * | | | 0x016e-0x0170 | * | Mailbox commands | 0x118d | 0x1115-0x1116 | * | | | 0x111a-0x111b | * | Device Discovery | 0x2016 | 0x2020-0x2022, | diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index cdaf52e26fff..222d70a01c0c 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -3300,6 +3300,8 @@ struct qla_hw_data { #define RISC_RDY_AFT_RESET 3 #define RISC_SRAM_DUMP_CMPL 4 #define RISC_EXT_MEM_DUMP_CMPL 5 +#define ISP_MBX_RDY 6 +#define ISP_SOFT_RESET_CMPL 7 int fw_dump_reading; int prev_minidump_failed; dma_addr_t eft_dma; diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index cb294e5cdddd..22ea00eb7750 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -1121,7 +1121,7 @@ qla81xx_reset_mpi(scsi_qla_host_t *vha) * * Returns 0 on success. */ -static inline void +static inline int qla24xx_reset_risc(scsi_qla_host_t *vha) { unsigned long flags = 0; @@ -1130,6 +1130,7 @@ qla24xx_reset_risc(scsi_qla_host_t *vha) uint32_t cnt, d2; uint16_t wd; static int abts_cnt; /* ISP abort retry counts */ + int rval = QLA_SUCCESS; spin_lock_irqsave(&ha->hardware_lock, flags); @@ -1142,26 +1143,57 @@ qla24xx_reset_risc(scsi_qla_host_t *vha) udelay(10); } + if (!(RD_REG_DWORD(®->ctrl_status) & CSRX_DMA_ACTIVE)) + set_bit(DMA_SHUTDOWN_CMPL, &ha->fw_dump_cap_flags); + + ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x017e, + "HCCR: 0x%x, Control Status %x, DMA active status:0x%x\n", + RD_REG_DWORD(®->hccr), + RD_REG_DWORD(®->ctrl_status), + (RD_REG_DWORD(®->ctrl_status) & CSRX_DMA_ACTIVE)); + WRT_REG_DWORD(®->ctrl_status, CSRX_ISP_SOFT_RESET|CSRX_DMA_SHUTDOWN|MWB_4096_BYTES); pci_read_config_word(ha->pdev, PCI_COMMAND, &wd); udelay(100); + /* Wait for firmware to complete NVRAM accesses. */ d2 = (uint32_t) RD_REG_WORD(®->mailbox0); - for (cnt = 10000 ; cnt && d2; cnt--) { - udelay(5); - d2 = (uint32_t) RD_REG_WORD(®->mailbox0); + for (cnt = 10000; RD_REG_WORD(®->mailbox0) != 0 && + rval == QLA_SUCCESS; cnt--) { barrier(); + if (cnt) + udelay(5); + else + rval = QLA_FUNCTION_TIMEOUT; } + if (rval == QLA_SUCCESS) + set_bit(ISP_MBX_RDY, &ha->fw_dump_cap_flags); + + ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x017f, + "HCCR: 0x%x, MailBox0 Status 0x%x\n", + RD_REG_DWORD(®->hccr), + RD_REG_DWORD(®->mailbox0)); + /* Wait for soft-reset to complete. */ d2 = RD_REG_DWORD(®->ctrl_status); - for (cnt = 6000000 ; cnt && (d2 & CSRX_ISP_SOFT_RESET); cnt--) { - udelay(5); - d2 = RD_REG_DWORD(®->ctrl_status); + for (cnt = 0; cnt < 6000000; cnt++) { barrier(); + if ((RD_REG_DWORD(®->ctrl_status) & + CSRX_ISP_SOFT_RESET) == 0) + break; + + udelay(5); } + if (!(RD_REG_DWORD(®->ctrl_status) & CSRX_ISP_SOFT_RESET)) + set_bit(ISP_SOFT_RESET_CMPL, &ha->fw_dump_cap_flags); + + ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x015d, + "HCCR: 0x%x, Soft Reset status: 0x%x\n", + RD_REG_DWORD(®->hccr), + RD_REG_DWORD(®->ctrl_status)); /* If required, do an MPI FW reset now */ if (test_and_clear_bit(MPI_RESET_NEEDED, &vha->dpc_flags)) { @@ -1190,16 +1222,32 @@ qla24xx_reset_risc(scsi_qla_host_t *vha) RD_REG_DWORD(®->hccr); d2 = (uint32_t) RD_REG_WORD(®->mailbox0); - for (cnt = 6000000 ; cnt && d2; cnt--) { - udelay(5); - d2 = (uint32_t) RD_REG_WORD(®->mailbox0); + for (cnt = 6000000; RD_REG_WORD(®->mailbox0) != 0 && + rval == QLA_SUCCESS; cnt--) { barrier(); + if (cnt) + udelay(5); + else + rval = QLA_FUNCTION_TIMEOUT; } + if (rval == QLA_SUCCESS) + set_bit(RISC_RDY_AFT_RESET, &ha->fw_dump_cap_flags); + + ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x015e, + "Host Risc 0x%x, mailbox0 0x%x\n", + RD_REG_DWORD(®->hccr), + RD_REG_WORD(®->mailbox0)); spin_unlock_irqrestore(&ha->hardware_lock, flags); + ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x015f, + "Driver in %s mode\n", + IS_NOPOLLING_TYPE(ha) ? "Interrupt" : "Polling"); + if (IS_NOPOLLING_TYPE(ha)) ha->isp_ops->enable_intrs(ha); + + return rval; } static void diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c index fe7b87d4ed86..02b1c1c5355b 100644 --- a/drivers/scsi/qla2xxx/qla_mbx.c +++ b/drivers/scsi/qla2xxx/qla_mbx.c @@ -33,7 +33,7 @@ static int qla2x00_mailbox_command(scsi_qla_host_t *vha, mbx_cmd_t *mcp) { - int rval; + int rval, i; unsigned long flags = 0; device_reg_t *reg; uint8_t abort_active; @@ -43,10 +43,12 @@ qla2x00_mailbox_command(scsi_qla_host_t *vha, mbx_cmd_t *mcp) uint16_t __iomem *optr; uint32_t cnt; uint32_t mboxes; + uint16_t __iomem *mbx_reg; unsigned long wait_time; struct qla_hw_data *ha = vha->hw; scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); + ql_dbg(ql_dbg_mbx, vha, 0x1000, "Entered %s.\n", __func__); if (ha->pdev->error_state > pci_channel_io_frozen) { @@ -376,6 +378,18 @@ mbx_done: ql_dbg(ql_dbg_disc, base_vha, 0x1020, "**** Failed mbx[0]=%x, mb[1]=%x, mb[2]=%x, mb[3]=%x, cmd=%x ****.\n", mcp->mb[0], mcp->mb[1], mcp->mb[2], mcp->mb[3], command); + + ql_dbg(ql_dbg_disc, vha, 0x1115, + "host status: 0x%x, flags:0x%lx, intr ctrl reg:0x%x, intr status:0x%x\n", + RD_REG_DWORD(®->isp24.host_status), + ha->fw_dump_cap_flags, + RD_REG_DWORD(®->isp24.ictrl), + RD_REG_DWORD(®->isp24.istatus)); + + mbx_reg = ®->isp24.mailbox0; + for (i = 0; i < 6; i++) + ql_dbg(ql_dbg_disc + ql_dbg_verbose, vha, 0x1116, + "mbox[%d] 0x%04x\n", i, RD_REG_WORD(mbx_reg++)); } else { ql_dbg(ql_dbg_mbx, base_vha, 0x1021, "Done %s.\n", __func__); }