diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_init.c | 109 |
1 files changed, 47 insertions, 62 deletions
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index 7f54916c4f6..33a24fc0afe 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -7903,7 +7903,8 @@ lpfc_pci_function_reset(struct lpfc_hba *phba) LPFC_MBOXQ_t *mboxq; uint32_t rc = 0, if_type; uint32_t shdr_status, shdr_add_status; - uint32_t rdy_chk, num_resets = 0, reset_again = 0; + uint32_t rdy_chk; + uint32_t port_reset = 0; union lpfc_sli4_cfg_shdr *shdr; struct lpfc_register reg_data; uint16_t devid; @@ -7943,9 +7944,42 @@ lpfc_pci_function_reset(struct lpfc_hba *phba) } break; case LPFC_SLI_INTF_IF_TYPE_2: - for (num_resets = 0; - num_resets < MAX_IF_TYPE_2_RESETS; - num_resets++) { +wait: + /* + * Poll the Port Status Register and wait for RDY for + * up to 30 seconds. If the port doesn't respond, treat + * it as an error. + */ + for (rdy_chk = 0; rdy_chk < 3000; rdy_chk++) { + if (lpfc_readl(phba->sli4_hba.u.if_type2. + STATUSregaddr, ®_data.word0)) { + rc = -ENODEV; + goto out; + } + if (bf_get(lpfc_sliport_status_rdy, ®_data)) + break; + msleep(20); + } + + if (!bf_get(lpfc_sliport_status_rdy, ®_data)) { + phba->work_status[0] = readl( + phba->sli4_hba.u.if_type2.ERR1regaddr); + phba->work_status[1] = readl( + phba->sli4_hba.u.if_type2.ERR2regaddr); + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "2890 Port not ready, port status reg " + "0x%x error 1=0x%x, error 2=0x%x\n", + reg_data.word0, + phba->work_status[0], + phba->work_status[1]); + rc = -ENODEV; + goto out; + } + + if (!port_reset) { + /* + * Reset the port now + */ reg_data.word0 = 0; bf_set(lpfc_sliport_ctrl_end, ®_data, LPFC_SLIPORT_LITTLE_ENDIAN); @@ -7956,64 +7990,16 @@ lpfc_pci_function_reset(struct lpfc_hba *phba) /* flush */ pci_read_config_word(phba->pcidev, PCI_DEVICE_ID, &devid); - /* - * Poll the Port Status Register and wait for RDY for - * up to 10 seconds. If the port doesn't respond, treat - * it as an error. If the port responds with RN, start - * the loop again. - */ - for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) { - msleep(10); - if (lpfc_readl(phba->sli4_hba.u.if_type2. - STATUSregaddr, ®_data.word0)) { - rc = -ENODEV; - goto out; - } - if (bf_get(lpfc_sliport_status_rn, ®_data)) - reset_again++; - if (bf_get(lpfc_sliport_status_rdy, ®_data)) - break; - } - - /* - * If the port responds to the init request with - * reset needed, delay for a bit and restart the loop. - */ - if (reset_again && (rdy_chk < 1000)) { - msleep(10); - reset_again = 0; - continue; - } - /* Detect any port errors. */ - if ((bf_get(lpfc_sliport_status_err, ®_data)) || - (rdy_chk >= 1000)) { - phba->work_status[0] = readl( - phba->sli4_hba.u.if_type2.ERR1regaddr); - phba->work_status[1] = readl( - phba->sli4_hba.u.if_type2.ERR2regaddr); - lpfc_printf_log(phba, KERN_ERR, LOG_INIT, - "2890 Port error detected during port " - "reset(%d): wait_tmo:%d ms, " - "port status reg 0x%x, " - "error 1=0x%x, error 2=0x%x\n", - num_resets, rdy_chk*10, - reg_data.word0, - phba->work_status[0], - phba->work_status[1]); - rc = -ENODEV; - } - - /* - * Terminate the outer loop provided the Port indicated - * ready within 10 seconds. - */ - if (rdy_chk < 1000) - break; + port_reset = 1; + msleep(20); + goto wait; + } else if (bf_get(lpfc_sliport_status_rn, ®_data)) { + rc = -ENODEV; + goto out; } - /* delay driver action following IF_TYPE_2 function reset */ - msleep(100); break; + case LPFC_SLI_INTF_IF_TYPE_1: default: break; @@ -8021,11 +8007,10 @@ lpfc_pci_function_reset(struct lpfc_hba *phba) out: /* Catch the not-ready port failure after a port reset. */ - if (num_resets >= MAX_IF_TYPE_2_RESETS) { + if (rc) { lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "3317 HBA not functional: IP Reset Failed " - "after (%d) retries, try: " - "echo fw_reset > board_mode\n", num_resets); + "try: echo fw_reset > board_mode\n"); rc = -ENODEV; } |