From: James Smart Date: Sat, 27 Oct 2007 17:37:25 +0000 (-0400) Subject: [SCSI] lpfc 8.2.3 : Remove flawed MBX_STOP_IOCB logic X-Git-Tag: v2.6.25-rc1~1230^2~192 X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=0b727fea7a700e223bf52fb1eaf4c3a27c4340db;p=linux-2.6-omap-h63xx.git [SCSI] lpfc 8.2.3 : Remove flawed MBX_STOP_IOCB logic Remove flawed MBX_STOP_IOCB logic Signed-off-by: James Smart Signed-off-by: James Bottomley --- diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c index 8085900635d..b73612d4fc5 100644 --- a/drivers/scsi/lpfc/lpfc_els.c +++ b/drivers/scsi/lpfc/lpfc_els.c @@ -249,7 +249,7 @@ lpfc_issue_fabric_reglogin(struct lpfc_vport *vport) mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; mbox->vport = vport; - rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT | MBX_STOP_IOCB); + rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); if (rc == MBX_NOT_FINISHED) goto fail_free_mbox; @@ -265,7 +265,7 @@ lpfc_issue_fabric_reglogin(struct lpfc_vport *vport) mbox->vport = vport; mbox->context2 = lpfc_nlp_get(ndlp); - rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT | MBX_STOP_IOCB); + rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); if (rc == MBX_NOT_FINISHED) goto fail_issue_reg_login; @@ -429,8 +429,7 @@ lpfc_cmpl_els_flogi_nport(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; mbox->vport = vport; - rc = lpfc_sli_issue_mbox(phba, mbox, - MBX_NOWAIT | MBX_STOP_IOCB); + rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); if (rc == MBX_NOT_FINISHED) { mempool_free(mbox, phba->mbox_mem_pool); goto fail; @@ -2150,8 +2149,7 @@ lpfc_cmpl_els_rsp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, lpfc_nlp_set_state(vport, ndlp, NLP_STE_REG_LOGIN_ISSUE); } - if (lpfc_sli_issue_mbox(phba, mbox, - (MBX_NOWAIT | MBX_STOP_IOCB)) + if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) != MBX_NOT_FINISHED) { goto out; } @@ -3022,8 +3020,7 @@ lpfc_els_rcv_flogi(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, mbox->mb.un.varInitLnk.lipsr_AL_PA = 0; mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; mbox->vport = vport; - rc = lpfc_sli_issue_mbox - (phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB)); + rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); lpfc_set_loopback_flag(phba); if (rc == MBX_NOT_FINISHED) { mempool_free(mbox, phba->mbox_mem_pool); @@ -3223,8 +3220,8 @@ lpfc_els_rcv_rps(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, mbox->context2 = lpfc_nlp_get(ndlp); mbox->vport = vport; mbox->mbox_cmpl = lpfc_els_rsp_rps_acc; - if (lpfc_sli_issue_mbox (phba, mbox, - (MBX_NOWAIT | MBX_STOP_IOCB)) != MBX_NOT_FINISHED) + if (lpfc_sli_issue_mbox (phba, mbox, MBX_NOWAIT) + != MBX_NOT_FINISHED) /* Mbox completion will send ELS Response */ return 0; @@ -4162,8 +4159,7 @@ lpfc_register_new_vport(struct lpfc_hba *phba, struct lpfc_vport *vport, mbox->vport = vport; mbox->context2 = lpfc_nlp_get(ndlp); mbox->mbox_cmpl = lpfc_cmpl_reg_new_vport; - if (lpfc_sli_issue_mbox(phba, mbox, - MBX_NOWAIT | MBX_STOP_IOCB) + if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) == MBX_NOT_FINISHED) { mempool_free(mbox, phba->mbox_mem_pool); vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c index c81c2b3228d..6f5bf818995 100644 --- a/drivers/scsi/lpfc/lpfc_hbadisc.c +++ b/drivers/scsi/lpfc/lpfc_hbadisc.c @@ -412,7 +412,7 @@ lpfc_work_done(struct lpfc_hba *phba) status >>= (4*LPFC_ELS_RING); if ((status & HA_RXMASK) || (pring->flag & LPFC_DEFERRED_RING_EVENT)) { - if (pring->flag & LPFC_STOP_IOCB_MASK) { + if (pring->flag & LPFC_STOP_IOCB_EVENT) { pring->flag |= LPFC_DEFERRED_RING_EVENT; } else { lpfc_sli_handle_slow_ring_event(phba, pring, @@ -629,7 +629,7 @@ lpfc_linkdown(struct lpfc_hba *phba) lpfc_unreg_did(phba, 0xffff, 0xffffffff, mb); mb->vport = vport; mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; - if (lpfc_sli_issue_mbox(phba, mb, (MBX_NOWAIT | MBX_STOP_IOCB)) + if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) == MBX_NOT_FINISHED) { mempool_free(mb, phba->mbox_mem_pool); } @@ -643,8 +643,7 @@ lpfc_linkdown(struct lpfc_hba *phba) lpfc_config_link(phba, mb); mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; mb->vport = vport; - if (lpfc_sli_issue_mbox(phba, mb, - (MBX_NOWAIT | MBX_STOP_IOCB)) + if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) == MBX_NOT_FINISHED) { mempool_free(mb, phba->mbox_mem_pool); } @@ -1022,8 +1021,7 @@ lpfc_mbx_process_link_up(struct lpfc_hba *phba, READ_LA_VAR *la) lpfc_read_sparam(phba, sparam_mbox, 0); sparam_mbox->vport = vport; sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam; - rc = lpfc_sli_issue_mbox(phba, sparam_mbox, - (MBX_NOWAIT | MBX_STOP_IOCB)); + rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT); if (rc == MBX_NOT_FINISHED) { mp = (struct lpfc_dmabuf *) sparam_mbox->context1; lpfc_mbuf_free(phba, mp->virt, mp->phys); @@ -1040,8 +1038,7 @@ lpfc_mbx_process_link_up(struct lpfc_hba *phba, READ_LA_VAR *la) lpfc_config_link(phba, cfglink_mbox); cfglink_mbox->vport = vport; cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link; - rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, - (MBX_NOWAIT | MBX_STOP_IOCB)); + rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT); if (rc != MBX_NOT_FINISHED) return; mempool_free(cfglink_mbox, phba->mbox_mem_pool); @@ -1219,7 +1216,7 @@ lpfc_mbx_unreg_vpi(struct lpfc_vport *vport) lpfc_unreg_vpi(phba, vport->vpi, mbox); mbox->vport = vport; mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi; - rc = lpfc_sli_issue_mbox(phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB)); + rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); if (rc == MBX_NOT_FINISHED) { lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, "1800 Could not issue unreg_vpi\n"); @@ -1868,8 +1865,7 @@ lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) lpfc_unreg_login(phba, vport->vpi, ndlp->nlp_rpi, mbox); mbox->vport = vport; mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; - rc = lpfc_sli_issue_mbox(phba, mbox, - (MBX_NOWAIT | MBX_STOP_IOCB)); + rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); if (rc == MBX_NOT_FINISHED) mempool_free(mbox, phba->mbox_mem_pool); } @@ -1892,8 +1888,7 @@ lpfc_unreg_all_rpis(struct lpfc_vport *vport) lpfc_unreg_login(phba, vport->vpi, 0xffff, mbox); mbox->vport = vport; mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; - rc = lpfc_sli_issue_mbox(phba, mbox, - (MBX_NOWAIT | MBX_STOP_IOCB)); + rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); if (rc == MBX_NOT_FINISHED) { mempool_free(mbox, phba->mbox_mem_pool); } @@ -1912,8 +1907,7 @@ lpfc_unreg_default_rpis(struct lpfc_vport *vport) lpfc_unreg_did(phba, vport->vpi, 0xffffffff, mbox); mbox->vport = vport; mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; - rc = lpfc_sli_issue_mbox(phba, mbox, - (MBX_NOWAIT | MBX_STOP_IOCB)); + rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); if (rc == MBX_NOT_FINISHED) { lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, "1815 Could not issue " @@ -2220,8 +2214,7 @@ lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport) lpfc_clear_la(phba, mbox); mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la; mbox->vport = vport; - rc = lpfc_sli_issue_mbox(phba, mbox, (MBX_NOWAIT | - MBX_STOP_IOCB)); + rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); if (rc == MBX_NOT_FINISHED) { mempool_free(mbox, phba->mbox_mem_pool); lpfc_disc_flush_list(vport); @@ -2244,8 +2237,7 @@ lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport) lpfc_reg_vpi(phba, vport->vpi, vport->fc_myDID, regvpimbox); regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi; regvpimbox->vport = vport; - if (lpfc_sli_issue_mbox(phba, regvpimbox, - (MBX_NOWAIT | MBX_STOP_IOCB)) + if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT) == MBX_NOT_FINISHED) { mempool_free(regvpimbox, phba->mbox_mem_pool); } @@ -2608,8 +2600,7 @@ lpfc_disc_timeout_handler(struct lpfc_vport *vport) initlinkmbox->mb.un.varInitLnk.lipsr_AL_PA = 0; initlinkmbox->vport = vport; initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; - rc = lpfc_sli_issue_mbox(phba, initlinkmbox, - (MBX_NOWAIT | MBX_STOP_IOCB)); + rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT); lpfc_set_loopback_flag(phba); if (rc == MBX_NOT_FINISHED) mempool_free(initlinkmbox, phba->mbox_mem_pool); diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index 86c2f2b15b6..8c7fdb8487e 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -355,7 +355,7 @@ lpfc_config_port_post(struct lpfc_hba *phba) phba->link_state = LPFC_LINK_DOWN; - /* Only process IOCBs on ring 0 till hba_state is READY */ + /* Only process IOCBs on ELS ring till hba_state is READY */ if (psli->ring[psli->extra_ring].cmdringaddr) psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT; if (psli->ring[psli->fcp_ring].cmdringaddr) @@ -777,7 +777,7 @@ lpfc_handle_latt(struct lpfc_hba *phba) lpfc_read_la(phba, pmb, mp); pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la; pmb->vport = vport; - rc = lpfc_sli_issue_mbox (phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB)); + rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT); if (rc == MBX_NOT_FINISHED) goto lpfc_handle_latt_free_mbuf; diff --git a/drivers/scsi/lpfc/lpfc_nportdisc.c b/drivers/scsi/lpfc/lpfc_nportdisc.c index 880af0cd463..71fd0012735 100644 --- a/drivers/scsi/lpfc/lpfc_nportdisc.c +++ b/drivers/scsi/lpfc/lpfc_nportdisc.c @@ -343,8 +343,7 @@ lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, lpfc_config_link(phba, mbox); mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; mbox->vport = vport; - rc = lpfc_sli_issue_mbox - (phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB)); + rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); if (rc == MBX_NOT_FINISHED) { mempool_free(mbox, phba->mbox_mem_pool); goto out; @@ -828,8 +827,7 @@ lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport, } mbox->context2 = lpfc_nlp_get(ndlp); mbox->vport = vport; - if (lpfc_sli_issue_mbox(phba, mbox, - (MBX_NOWAIT | MBX_STOP_IOCB)) + if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) != MBX_NOT_FINISHED) { lpfc_nlp_set_state(vport, ndlp, NLP_STE_REG_LOGIN_ISSUE); diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index 41f13a300ba..744bad62759 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -474,8 +474,7 @@ lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) if (pring->txq_cnt && lpfc_is_link_up(phba) && (pring->ringno != phba->sli.fcp_ring || - phba->sli.sli_flag & LPFC_PROCESS_LA) && - !(pring->flag & LPFC_STOP_IOCB_MBX)) { + phba->sli.sli_flag & LPFC_PROCESS_LA)) { while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) && (nextiocb = lpfc_sli_ringtx_get(phba, pring))) @@ -490,31 +489,6 @@ lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) return; } -/* lpfc_sli_turn_on_ring is only called by lpfc_sli_handle_mb_event below */ -static void -lpfc_sli_turn_on_ring(struct lpfc_hba *phba, int ringno) -{ - struct lpfc_pgp *pgp = (phba->sli_rev == 3) ? - &phba->slim2p->mbx.us.s3_pgp.port[ringno] : - &phba->slim2p->mbx.us.s2.port[ringno]; - unsigned long iflags; - - /* If the ring is active, flag it */ - spin_lock_irqsave(&phba->hbalock, iflags); - if (phba->sli.ring[ringno].cmdringaddr) { - if (phba->sli.ring[ringno].flag & LPFC_STOP_IOCB_MBX) { - phba->sli.ring[ringno].flag &= ~LPFC_STOP_IOCB_MBX; - /* - * Force update of the local copy of cmdGetInx - */ - phba->sli.ring[ringno].local_getidx - = le32_to_cpu(pgp->cmdGetInx); - lpfc_sli_resume_iocb(phba, &phba->sli.ring[ringno]); - } - } - spin_unlock_irqrestore(&phba->hbalock, iflags); -} - struct lpfc_hbq_entry * lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno) { @@ -2590,21 +2564,6 @@ lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag) return MBX_NOT_FINISHED; } - /* Handle STOP IOCB processing flag. This is only meaningful - * if we are not polling for mbox completion. - */ - if (flag & MBX_STOP_IOCB) { - flag &= ~MBX_STOP_IOCB; - /* Now flag each ring */ - for (i = 0; i < psli->num_rings; i++) { - /* If the ring is active, flag it */ - if (psli->ring[i].cmdringaddr) { - psli->ring[i].flag |= - LPFC_STOP_IOCB_MBX; - } - } - } - /* Another mailbox command is still being processed, queue this * command to be processed later. */ @@ -2639,23 +2598,6 @@ lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag) return MBX_BUSY; } - /* Handle STOP IOCB processing flag. This is only meaningful - * if we are not polling for mbox completion. - */ - if (flag & MBX_STOP_IOCB) { - flag &= ~MBX_STOP_IOCB; - if (flag == MBX_NOWAIT) { - /* Now flag each ring */ - for (i = 0; i < psli->num_rings; i++) { - /* If the ring is active, flag it */ - if (psli->ring[i].cmdringaddr) { - psli->ring[i].flag |= - LPFC_STOP_IOCB_MBX; - } - } - } - } - psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE; /* If we are not polling, we MUST be in SLI2 mode */ @@ -2898,9 +2840,9 @@ __lpfc_sli_issue_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, /* * Check to see if we are blocking IOCB processing because of a - * outstanding mbox command. + * outstanding event. */ - if (unlikely(pring->flag & LPFC_STOP_IOCB_MBX)) + if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT)) goto iocb_busy; if (unlikely(phba->link_state == LPFC_LINK_DOWN)) { @@ -3847,7 +3789,6 @@ lpfc_intr_handler(int irq, void *dev_id) uint32_t ha_copy; uint32_t work_ha_copy; unsigned long status; - int i; uint32_t control; MAILBOX_t *mbox, *pmbox; @@ -4066,10 +4007,6 @@ send_current_mbox: lpfc_mbox_cmpl_put(phba, pmb); goto send_next_mbox; } - } else { - /* Turn on IOCB processing */ - for (i = 0; i < phba->sli.num_rings; i++) - lpfc_sli_turn_on_ring(phba, i); } } diff --git a/drivers/scsi/lpfc/lpfc_sli.h b/drivers/scsi/lpfc/lpfc_sli.h index 8b1fe2f62d8..44c3fd9c22f 100644 --- a/drivers/scsi/lpfc/lpfc_sli.h +++ b/drivers/scsi/lpfc/lpfc_sli.h @@ -92,8 +92,6 @@ typedef struct lpfcMboxq { #define MBX_POLL 1 /* poll mailbox till command done, then return */ #define MBX_NOWAIT 2 /* issue command then return immediately */ -#define MBX_STOP_IOCB 4 /* Stop iocb processing till mbox cmds - complete */ #define LPFC_MAX_RING_MASK 4 /* max num of rctl/type masks allowed per ring */ @@ -129,9 +127,7 @@ struct lpfc_sli_ring { uint16_t flag; /* ring flags */ #define LPFC_DEFERRED_RING_EVENT 0x001 /* Deferred processing a ring event */ #define LPFC_CALL_RING_AVAILABLE 0x002 /* indicates cmd was full */ -#define LPFC_STOP_IOCB_MBX 0x010 /* Stop processing IOCB cmds mbox */ #define LPFC_STOP_IOCB_EVENT 0x020 /* Stop processing IOCB cmds event */ -#define LPFC_STOP_IOCB_MASK 0x030 /* Stop processing IOCB cmds mask */ uint16_t abtsiotag; /* tracks next iotag to use for ABTS */ uint32_t local_getidx; /* last available cmd index (from cmdGetInx) */