From 5a0adaedffce91100d03fc1036dde024c8589295 Mon Sep 17 00:00:00 2001 From: Krishna Gudipati Date: Fri, 24 Jun 2011 20:22:56 -0700 Subject: [SCSI] bfa: IOC bug fixes. - Add logic to handle the case where PCI mapping goes away when IOCPF state machine is waiting for semaphore. - Added logic to unlock hw semaphore if the previos FW boot was from flash based and the current FW initialization attempt is from OS. - Added fix to update hbfails and hb_count stats during hwerror event. Signed-off-by: Krishna Gudipati Signed-off-by: James Bottomley --- drivers/scsi/bfa/bfa_defs.h | 2 + drivers/scsi/bfa/bfa_ioc.c | 116 ++++++++++++++++++++++++++++++++++++++++-- drivers/scsi/bfa/bfa_ioc_cb.c | 15 ------ drivers/scsi/bfa/bfa_ioc_ct.c | 23 ++++----- drivers/scsi/bfa/bfi.h | 3 +- 5 files changed, 125 insertions(+), 34 deletions(-) (limited to 'drivers/scsi/bfa') diff --git a/drivers/scsi/bfa/bfa_defs.h b/drivers/scsi/bfa/bfa_defs.h index cced5874cb5..c675e65c77a 100644 --- a/drivers/scsi/bfa/bfa_defs.h +++ b/drivers/scsi/bfa/bfa_defs.h @@ -274,6 +274,7 @@ enum bfa_ioc_state { BFA_IOC_DISABLED = 10, /* IOC is disabled */ BFA_IOC_FWMISMATCH = 11, /* IOC f/w different from drivers */ BFA_IOC_ENABLING = 12, /* IOC is being enabled */ + BFA_IOC_HWFAIL = 13, /* PCI mapping doesn't exist */ }; /* @@ -303,6 +304,7 @@ struct bfa_ioc_drv_stats_s { u32 enable_reqs; u32 disable_replies; u32 enable_replies; + u32 rsvd; }; /* diff --git a/drivers/scsi/bfa/bfa_ioc.c b/drivers/scsi/bfa/bfa_ioc.c index 2c575f5dea0..931bf9769ff 100644 --- a/drivers/scsi/bfa/bfa_ioc.c +++ b/drivers/scsi/bfa/bfa_ioc.c @@ -112,6 +112,7 @@ enum ioc_event { IOC_E_HBFAIL = 9, /* heartbeat failure */ IOC_E_HWERROR = 10, /* hardware error interrupt */ IOC_E_TIMEOUT = 11, /* timeout */ + IOC_E_HWFAILED = 12, /* PCI mapping failure notice */ }; bfa_fsm_state_decl(bfa_ioc, uninit, struct bfa_ioc_s, enum ioc_event); @@ -123,6 +124,7 @@ bfa_fsm_state_decl(bfa_ioc, fail_retry, struct bfa_ioc_s, enum ioc_event); bfa_fsm_state_decl(bfa_ioc, fail, struct bfa_ioc_s, enum ioc_event); bfa_fsm_state_decl(bfa_ioc, disabling, struct bfa_ioc_s, enum ioc_event); bfa_fsm_state_decl(bfa_ioc, disabled, struct bfa_ioc_s, enum ioc_event); +bfa_fsm_state_decl(bfa_ioc, hwfail, struct bfa_ioc_s, enum ioc_event); static struct bfa_sm_table_s ioc_sm_table[] = { {BFA_SM(bfa_ioc_sm_uninit), BFA_IOC_UNINIT}, @@ -134,6 +136,7 @@ static struct bfa_sm_table_s ioc_sm_table[] = { {BFA_SM(bfa_ioc_sm_fail), BFA_IOC_FAIL}, {BFA_SM(bfa_ioc_sm_disabling), BFA_IOC_DISABLING}, {BFA_SM(bfa_ioc_sm_disabled), BFA_IOC_DISABLED}, + {BFA_SM(bfa_ioc_sm_hwfail), BFA_IOC_HWFAIL}, }; /* @@ -176,6 +179,7 @@ enum iocpf_event { IOCPF_E_GETATTRFAIL = 9, /* init fail notice by ioc sm */ IOCPF_E_SEMLOCKED = 10, /* h/w semaphore is locked */ IOCPF_E_TIMEOUT = 11, /* f/w response timeout */ + IOCPF_E_SEM_ERROR = 12, /* h/w sem mapping error */ }; /* @@ -322,6 +326,11 @@ bfa_ioc_sm_enabling(struct bfa_ioc_s *ioc, enum ioc_event event) bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_INITFAIL); break; + case IOC_E_HWFAILED: + ioc->cbfn->enable_cbfn(ioc->bfa, BFA_STATUS_IOC_FAILURE); + bfa_fsm_set_state(ioc, bfa_ioc_sm_hwfail); + break; + case IOC_E_DISABLE: bfa_fsm_set_state(ioc, bfa_ioc_sm_disabling); break; @@ -465,6 +474,11 @@ bfa_ioc_sm_disabling(struct bfa_ioc_s *ioc, enum ioc_event event) bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_FAIL); break; + case IOC_E_HWFAILED: + bfa_fsm_set_state(ioc, bfa_ioc_sm_hwfail); + bfa_ioc_disable_comp(ioc); + break; + default: bfa_sm_fault(ioc, event); } @@ -534,6 +548,11 @@ bfa_ioc_sm_fail_retry(struct bfa_ioc_s *ioc, enum ioc_event event) bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_INITFAIL); break; + case IOC_E_HWFAILED: + ioc->cbfn->enable_cbfn(ioc->bfa, BFA_STATUS_IOC_FAILURE); + bfa_fsm_set_state(ioc, bfa_ioc_sm_hwfail); + break; + case IOC_E_ENABLE: break; @@ -591,6 +610,35 @@ bfa_ioc_sm_fail(struct bfa_ioc_s *ioc, enum ioc_event event) } } +static void +bfa_ioc_sm_hwfail_entry(struct bfa_ioc_s *ioc) +{ + bfa_trc(ioc, 0); +} + +static void +bfa_ioc_sm_hwfail(struct bfa_ioc_s *ioc, enum ioc_event event) +{ + bfa_trc(ioc, event); + + switch (event) { + case IOC_E_ENABLE: + ioc->cbfn->enable_cbfn(ioc->bfa, BFA_STATUS_IOC_FAILURE); + break; + + case IOC_E_DISABLE: + ioc->cbfn->disable_cbfn(ioc->bfa); + break; + + case IOC_E_DETACH: + bfa_fsm_set_state(ioc, bfa_ioc_sm_uninit); + break; + + default: + bfa_sm_fault(ioc, event); + } +} + /* * IOCPF State Machine */ @@ -634,6 +682,28 @@ bfa_iocpf_sm_reset(struct bfa_iocpf_s *iocpf, enum iocpf_event event) static void bfa_iocpf_sm_fwcheck_entry(struct bfa_iocpf_s *iocpf) { + struct bfi_ioc_image_hdr_s fwhdr; + u32 fwstate = readl(iocpf->ioc->ioc_regs.ioc_fwstate); + + /* h/w sem init */ + if (fwstate == BFI_IOC_UNINIT) + goto sem_get; + + bfa_ioc_fwver_get(iocpf->ioc, &fwhdr); + + if (swab32(fwhdr.exec) == BFI_FWBOOT_TYPE_NORMAL) + goto sem_get; + + bfa_trc(iocpf->ioc, fwstate); + bfa_trc(iocpf->ioc, fwhdr.exec); + writel(BFI_IOC_UNINIT, iocpf->ioc->ioc_regs.ioc_fwstate); + + /* + * Try to lock and then unlock the semaphore. + */ + readl(iocpf->ioc->ioc_regs.ioc_sem_reg); + writel(1, iocpf->ioc->ioc_regs.ioc_sem_reg); +sem_get: bfa_ioc_hw_sem_get(iocpf->ioc); } @@ -664,6 +734,11 @@ bfa_iocpf_sm_fwcheck(struct bfa_iocpf_s *iocpf, enum iocpf_event event) } break; + case IOCPF_E_SEM_ERROR: + bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fail); + bfa_fsm_send_event(ioc, IOC_E_HWFAILED); + break; + case IOCPF_E_DISABLE: bfa_sem_timer_stop(ioc); bfa_fsm_set_state(iocpf, bfa_iocpf_sm_reset); @@ -757,6 +832,11 @@ bfa_iocpf_sm_semwait(struct bfa_iocpf_s *iocpf, enum iocpf_event event) } break; + case IOCPF_E_SEM_ERROR: + bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fail); + bfa_fsm_send_event(ioc, IOC_E_HWFAILED); + break; + case IOCPF_E_DISABLE: bfa_sem_timer_stop(ioc); bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling_sync); @@ -957,6 +1037,11 @@ bfa_iocpf_sm_disabling_sync(struct bfa_iocpf_s *iocpf, enum iocpf_event event) bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabled); break; + case IOCPF_E_SEM_ERROR: + bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fail); + bfa_fsm_send_event(ioc, IOC_E_HWFAILED); + break; + case IOCPF_E_FAIL: break; @@ -1000,6 +1085,7 @@ bfa_iocpf_sm_disabled(struct bfa_iocpf_s *iocpf, enum iocpf_event event) static void bfa_iocpf_sm_initfail_sync_entry(struct bfa_iocpf_s *iocpf) { + bfa_ioc_debug_save_ftrc(iocpf->ioc); bfa_ioc_hw_sem_get(iocpf->ioc); } @@ -1022,6 +1108,11 @@ bfa_iocpf_sm_initfail_sync(struct bfa_iocpf_s *iocpf, enum iocpf_event event) bfa_fsm_set_state(iocpf, bfa_iocpf_sm_initfail); break; + case IOCPF_E_SEM_ERROR: + bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fail); + bfa_fsm_send_event(ioc, IOC_E_HWFAILED); + break; + case IOCPF_E_DISABLE: bfa_sem_timer_stop(ioc); bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling_sync); @@ -1044,6 +1135,7 @@ bfa_iocpf_sm_initfail_sync(struct bfa_iocpf_s *iocpf, enum iocpf_event event) static void bfa_iocpf_sm_initfail_entry(struct bfa_iocpf_s *iocpf) { + bfa_trc(iocpf->ioc, 0); } /* @@ -1113,6 +1205,11 @@ bfa_iocpf_sm_fail_sync(struct bfa_iocpf_s *iocpf, enum iocpf_event event) } break; + case IOCPF_E_SEM_ERROR: + bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fail); + bfa_fsm_send_event(ioc, IOC_E_HWFAILED); + break; + case IOCPF_E_DISABLE: bfa_sem_timer_stop(ioc); bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling_sync); @@ -1129,6 +1226,7 @@ bfa_iocpf_sm_fail_sync(struct bfa_iocpf_s *iocpf, enum iocpf_event event) static void bfa_iocpf_sm_fail_entry(struct bfa_iocpf_s *iocpf) { + bfa_trc(iocpf->ioc, 0); } /* @@ -1195,7 +1293,6 @@ bfa_ioc_sem_get(void __iomem *sem_reg) if (!(r32 & 1)) return BFA_TRUE; - WARN_ON(cnt >= BFA_SEM_SPINCNT); return BFA_FALSE; } @@ -1209,6 +1306,11 @@ bfa_ioc_hw_sem_get(struct bfa_ioc_s *ioc) * will return 1. Semaphore is released by writing 1 to the register */ r32 = readl(ioc->ioc_regs.ioc_sem_reg); + if (r32 == ~0) { + WARN_ON(r32 == ~0); + bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_SEM_ERROR); + return; + } if (!(r32 & 1)) { bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_SEMLOCKED); return; @@ -1617,6 +1719,7 @@ bfa_ioc_getattr_reply(struct bfa_ioc_s *ioc) attr->adapter_prop = be32_to_cpu(attr->adapter_prop); attr->card_type = be32_to_cpu(attr->card_type); attr->maxfrsize = be16_to_cpu(attr->maxfrsize); + ioc->fcmode = (attr->port_mode == BFI_PORT_MODE_FC); bfa_fsm_send_event(ioc, IOC_E_FWRSP_GETATTR); } @@ -1733,6 +1836,7 @@ bfa_ioc_smem_read(struct bfa_ioc_s *ioc, void *tbuf, u32 soff, u32 sz) /* * release semaphore. */ + readl(ioc->ioc_regs.ioc_init_sem_reg); writel(1, ioc->ioc_regs.ioc_init_sem_reg); bfa_trc(ioc, pgnum); @@ -1789,6 +1893,7 @@ bfa_ioc_smem_clr(struct bfa_ioc_s *ioc, u32 soff, u32 sz) /* * release semaphore. */ + readl(ioc->ioc_regs.ioc_init_sem_reg); writel(1, ioc->ioc_regs.ioc_init_sem_reg); bfa_trc(ioc, pgnum); return BFA_STATUS_OK; @@ -1840,6 +1945,7 @@ bfa_ioc_pll_init(struct bfa_ioc_s *ioc) /* * release semaphore. */ + readl(ioc->ioc_regs.ioc_init_sem_reg); writel(1, ioc->ioc_regs.ioc_init_sem_reg); return BFA_STATUS_OK; @@ -2232,6 +2338,8 @@ bfa_ioc_mbox_isr(struct bfa_ioc_s *ioc) void bfa_ioc_error_isr(struct bfa_ioc_s *ioc) { + bfa_ioc_stats(ioc, ioc_hbfails); + ioc->stats.hb_count = ioc->hb_count; bfa_fsm_send_event(ioc, IOC_E_HWERROR); } @@ -2354,15 +2462,12 @@ bfa_ioc_get_adapter_attr(struct bfa_ioc_s *ioc, enum bfa_ioc_type_e bfa_ioc_get_type(struct bfa_ioc_s *ioc) { - enum bfi_port_mode mode; - if (ioc->clscode == BFI_PCIFN_CLASS_ETH) return BFA_IOC_TYPE_LL; WARN_ON(ioc->clscode != BFI_PCIFN_CLASS_FC); - mode = (ioc->port_id == 0) ? ioc->port0_mode : ioc->port1_mode; - return (mode == BFI_PORT_MODE_FC) + return (ioc->attr->port_mode == BFI_PORT_MODE_FC) ? BFA_IOC_TYPE_FC : BFA_IOC_TYPE_FCoE; } @@ -2739,6 +2844,7 @@ static void bfa_ioc_recover(struct bfa_ioc_s *ioc) { bfa_ioc_stats(ioc, ioc_hbfails); + ioc->stats.hb_count = ioc->hb_count; bfa_fsm_send_event(ioc, IOC_E_HBFAIL); } diff --git a/drivers/scsi/bfa/bfa_ioc_cb.c b/drivers/scsi/bfa/bfa_ioc_cb.c index e858bc0c48d..30df8a28471 100644 --- a/drivers/scsi/bfa/bfa_ioc_cb.c +++ b/drivers/scsi/bfa/bfa_ioc_cb.c @@ -69,21 +69,6 @@ bfa_ioc_set_cb_hwif(struct bfa_ioc_s *ioc) static bfa_boolean_t bfa_ioc_cb_firmware_lock(struct bfa_ioc_s *ioc) { - struct bfi_ioc_image_hdr_s fwhdr; - uint32_t fwstate = readl(ioc->ioc_regs.ioc_fwstate); - - if (fwstate == BFI_IOC_UNINIT) - return BFA_TRUE; - - bfa_ioc_fwver_get(ioc, &fwhdr); - - if (swab32(fwhdr.exec) == BFI_FWBOOT_TYPE_NORMAL) - return BFA_TRUE; - - bfa_trc(ioc, fwstate); - bfa_trc(ioc, fwhdr.exec); - writel(BFI_IOC_UNINIT, ioc->ioc_regs.ioc_fwstate); - return BFA_TRUE; } diff --git a/drivers/scsi/bfa/bfa_ioc_ct.c b/drivers/scsi/bfa/bfa_ioc_ct.c index 5b5579401d4..216016c50d1 100644 --- a/drivers/scsi/bfa/bfa_ioc_ct.c +++ b/drivers/scsi/bfa/bfa_ioc_ct.c @@ -57,12 +57,6 @@ bfa_ioc_ct_firmware_lock(struct bfa_ioc_s *ioc) u32 usecnt; struct bfi_ioc_image_hdr_s fwhdr; - /* - * Firmware match check is relevant only for CNA. - */ - if (!bfa_ioc_is_cna(ioc)) - return BFA_TRUE; - /* * If bios boot (flash based) -- do not increment usage count */ @@ -78,6 +72,7 @@ bfa_ioc_ct_firmware_lock(struct bfa_ioc_s *ioc) */ if (usecnt == 0) { writel(1, ioc->ioc_regs.ioc_usage_reg); + readl(ioc->ioc_regs.ioc_usage_sem_reg); writel(1, ioc->ioc_regs.ioc_usage_sem_reg); writel(0, ioc->ioc_regs.ioc_fail_sync); bfa_trc(ioc, usecnt); @@ -97,6 +92,7 @@ bfa_ioc_ct_firmware_lock(struct bfa_ioc_s *ioc) */ bfa_ioc_fwver_get(ioc, &fwhdr); if (!bfa_ioc_fwver_cmp(ioc, &fwhdr)) { + readl(ioc->ioc_regs.ioc_usage_sem_reg); writel(1, ioc->ioc_regs.ioc_usage_sem_reg); bfa_trc(ioc, usecnt); return BFA_FALSE; @@ -107,6 +103,7 @@ bfa_ioc_ct_firmware_lock(struct bfa_ioc_s *ioc) */ usecnt++; writel(usecnt, ioc->ioc_regs.ioc_usage_reg); + readl(ioc->ioc_regs.ioc_usage_sem_reg); writel(1, ioc->ioc_regs.ioc_usage_sem_reg); bfa_trc(ioc, usecnt); return BFA_TRUE; @@ -117,12 +114,6 @@ bfa_ioc_ct_firmware_unlock(struct bfa_ioc_s *ioc) { u32 usecnt; - /* - * Firmware lock is relevant only for CNA. - */ - if (!bfa_ioc_is_cna(ioc)) - return; - /* * If bios boot (flash based) -- do not decrement usage count */ @@ -141,6 +132,7 @@ bfa_ioc_ct_firmware_unlock(struct bfa_ioc_s *ioc) writel(usecnt, ioc->ioc_regs.ioc_usage_reg); bfa_trc(ioc, usecnt); + readl(ioc->ioc_regs.ioc_usage_sem_reg); writel(1, ioc->ioc_regs.ioc_usage_sem_reg); } @@ -344,7 +336,11 @@ bfa_ioc_ct_map_port(struct bfa_ioc_s *ioc) static void bfa_ioc_ct2_map_port(struct bfa_ioc_s *ioc) { - ioc->port_id = bfa_ioc_pcifn(ioc) % 2; + void __iomem *rb = ioc->pcidev.pci_bar_kva; + u32 r32; + + r32 = readl(rb + CT2_HOSTFN_PERSONALITY0); + ioc->port_id = ((r32 & __FC_LL_PORT_MAP__MK) >> __FC_LL_PORT_MAP__SH); bfa_trc(ioc, bfa_ioc_pcifn(ioc)); bfa_trc(ioc, ioc->port_id); @@ -407,6 +403,7 @@ bfa_ioc_ct_ownership_reset(struct bfa_ioc_s *ioc) if (bfa_ioc_is_cna(ioc)) { bfa_ioc_sem_get(ioc->ioc_regs.ioc_usage_sem_reg); writel(0, ioc->ioc_regs.ioc_usage_reg); + readl(ioc->ioc_regs.ioc_usage_sem_reg); writel(1, ioc->ioc_regs.ioc_usage_sem_reg); } diff --git a/drivers/scsi/bfa/bfi.h b/drivers/scsi/bfa/bfi.h index d28c7c55a60..02e44561254 100644 --- a/drivers/scsi/bfa/bfi.h +++ b/drivers/scsi/bfa/bfi.h @@ -236,7 +236,8 @@ struct bfi_ioc_attr_s { wwn_t mfg_pwwn; /* Mfg port wwn */ wwn_t mfg_nwwn; /* Mfg node wwn */ mac_t mfg_mac; /* Mfg mac */ - u16 rsvd_a; + u8 port_mode; /* bfi_port_mode */ + u8 rsvd_a; wwn_t pwwn; wwn_t nwwn; mac_t mac; /* PBC or Mfg mac */ -- cgit v1.2.3-70-g09d2