diff options
author | Andrew Vasquez <andrew.vasquez@qlogic.com> | 2010-05-04 15:01:26 -0700 |
---|---|---|
committer | James Bottomley <James.Bottomley@suse.de> | 2010-05-16 18:21:47 -0400 |
commit | 5ff1d58410ffb160b388d622ef0c6a0411a05559 (patch) | |
tree | a8d95de2c47bf3b0beaae6730b61b3d84c2bde56 /drivers/scsi | |
parent | 99b0bec7bbf3350d1a920a7138fa62c456a8ecf1 (diff) | |
download | kernel_samsung_tuna-5ff1d58410ffb160b388d622ef0c6a0411a05559.zip kernel_samsung_tuna-5ff1d58410ffb160b388d622ef0c6a0411a05559.tar.gz kernel_samsung_tuna-5ff1d58410ffb160b388d622ef0c6a0411a05559.tar.bz2 |
[SCSI] qla2xxx: Limit mailbox command contention for ADISC requests.
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/scsi')
-rw-r--r-- | drivers/scsi/qla2xxx/qla_def.h | 7 | ||||
-rw-r--r-- | drivers/scsi/qla2xxx/qla_gbl.h | 8 | ||||
-rw-r--r-- | drivers/scsi/qla2xxx/qla_init.c | 88 | ||||
-rw-r--r-- | drivers/scsi/qla2xxx/qla_iocb.c | 39 | ||||
-rw-r--r-- | drivers/scsi/qla2xxx/qla_isr.c | 33 | ||||
-rw-r--r-- | drivers/scsi/qla2xxx/qla_os.c | 31 |
6 files changed, 178 insertions, 28 deletions
diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index b3cf609..a491338 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -219,6 +219,7 @@ typedef struct srb { #define SRB_ELS_CMD_RPT 3 #define SRB_ELS_CMD_HST 4 #define SRB_CT_CMD 5 +#define SRB_ADISC_CMD 6 struct srb_ctx { uint16_t type; @@ -1623,6 +1624,7 @@ typedef struct fc_port { #define FCF_FABRIC_DEVICE BIT_0 #define FCF_LOGIN_NEEDED BIT_1 #define FCF_FCP2_DEVICE BIT_2 +#define FCF_ASYNC_SENT BIT_3 /* No loop ID flag. */ #define FC_NO_LOOP_ID 0x1000 @@ -2156,6 +2158,8 @@ enum qla_work_type { QLA_EVT_ASYNC_LOGIN_DONE, QLA_EVT_ASYNC_LOGOUT, QLA_EVT_ASYNC_LOGOUT_DONE, + QLA_EVT_ASYNC_ADISC, + QLA_EVT_ASYNC_ADISC_DONE, QLA_EVT_UEVENT, }; @@ -2514,6 +2518,9 @@ struct qla_hw_data { dma_addr_t ex_init_cb_dma; struct ex_init_cb_81xx *ex_init_cb; + void *async_pd; + dma_addr_t async_pd_dma; + /* These are used by mailbox operations. */ volatile uint16_t mailbox_out[MAILBOX_REGISTER_COUNT]; diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h index cff5a4a..03be298 100644 --- a/drivers/scsi/qla2xxx/qla_gbl.h +++ b/drivers/scsi/qla2xxx/qla_gbl.h @@ -56,10 +56,14 @@ extern void qla84xx_put_chip(struct scsi_qla_host *); extern int qla2x00_async_login(struct scsi_qla_host *, fc_port_t *, uint16_t *); extern int qla2x00_async_logout(struct scsi_qla_host *, fc_port_t *); +extern int qla2x00_async_adisc(struct scsi_qla_host *, fc_port_t *, + uint16_t *); extern int qla2x00_async_login_done(struct scsi_qla_host *, fc_port_t *, uint16_t *); extern int qla2x00_async_logout_done(struct scsi_qla_host *, fc_port_t *, uint16_t *); +extern int qla2x00_async_adisc_done(struct scsi_qla_host *, fc_port_t *, + uint16_t *); extern fc_port_t * qla2x00_alloc_fcport(scsi_qla_host_t *, gfp_t ); @@ -97,6 +101,10 @@ extern int qla2x00_post_async_logout_work(struct scsi_qla_host *, fc_port_t *, uint16_t *); extern int qla2x00_post_async_logout_done_work(struct scsi_qla_host *, fc_port_t *, uint16_t *); +extern int qla2x00_post_async_adisc_work(struct scsi_qla_host *, fc_port_t *, + uint16_t *); +extern int qla2x00_post_async_adisc_done_work(struct scsi_qla_host *, + fc_port_t *, uint16_t *); extern int qla2x00_post_uevent_work(struct scsi_qla_host *, u32); extern int qla81xx_restart_mpi_firmware(scsi_qla_host_t *); diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index c3c2c36..4e7a3d5 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -119,6 +119,7 @@ qla2x00_async_logio_timeout(srb_t *sp) "scsi(%ld:%x): Async-%s timeout.\n", fcport->vha->host_no, sp->handle, lio->ctx.name)); + fcport->flags &= ~FCF_ASYNC_SENT; if (lio->ctx.type == SRB_LOGIN_CMD) qla2x00_post_async_logout_work(fcport->vha, fcport, NULL); } @@ -220,6 +221,56 @@ done: return rval; } +static void +qla2x00_async_adisc_ctx_done(srb_t *sp) +{ + struct srb_logio *lio = sp->ctx; + + qla2x00_post_async_adisc_done_work(sp->fcport->vha, sp->fcport, + lio->data); + lio->ctx.free(sp); +} + +int +qla2x00_async_adisc(struct scsi_qla_host *vha, fc_port_t *fcport, + uint16_t *data) +{ + struct qla_hw_data *ha = vha->hw; + srb_t *sp; + struct srb_logio *lio; + int rval; + + rval = QLA_FUNCTION_FAILED; + sp = qla2x00_get_ctx_sp(vha, fcport, sizeof(struct srb_logio), + ELS_TMO_2_RATOV(ha) + 2); + if (!sp) + goto done; + + lio = sp->ctx; + lio->ctx.type = SRB_ADISC_CMD; + lio->ctx.name = "adisc"; + lio->ctx.timeout = qla2x00_async_logio_timeout; + lio->ctx.done = qla2x00_async_adisc_ctx_done; + if (data[1] & QLA_LOGIO_LOGIN_RETRIED) + lio->flags |= SRB_LOGIN_RETRIED; + rval = qla2x00_start_sp(sp); + if (rval != QLA_SUCCESS) + goto done_free_sp; + + DEBUG2(printk(KERN_DEBUG + "scsi(%ld:%x): Async-adisc - loop-id=%x portid=%02x%02x%02x.\n", + fcport->vha->host_no, sp->handle, fcport->loop_id, + fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa)); + + return rval; + +done_free_sp: + del_timer_sync(&lio->ctx.timer); + lio->ctx.free(sp); +done: + return rval; +} + int qla2x00_async_login_done(struct scsi_qla_host *vha, fc_port_t *fcport, uint16_t *data) @@ -229,15 +280,14 @@ qla2x00_async_login_done(struct scsi_qla_host *vha, fc_port_t *fcport, switch (data[0]) { case MBS_COMMAND_COMPLETE: if (fcport->flags & FCF_FCP2_DEVICE) { - rval = qla2x00_get_port_database(vha, fcport, BIT_1); - if (rval != QLA_SUCCESS) { - qla2x00_mark_device_lost(vha, fcport, 1, 0); - break; - } + fcport->flags |= FCF_ASYNC_SENT; + qla2x00_post_async_adisc_work(vha, fcport, data); + break; } qla2x00_update_fcport(vha, fcport); break; case MBS_COMMAND_ERROR: + fcport->flags &= ~FCF_ASYNC_SENT; if (data[1] & QLA_LOGIO_LOGIN_RETRIED) set_bit(RELOGIN_NEEDED, &vha->dpc_flags); else @@ -251,6 +301,7 @@ qla2x00_async_login_done(struct scsi_qla_host *vha, fc_port_t *fcport, fcport->loop_id++; rval = qla2x00_find_new_loop_id(vha, fcport); if (rval != QLA_SUCCESS) { + fcport->flags &= ~FCF_ASYNC_SENT; qla2x00_mark_device_lost(vha, fcport, 1, 0); break; } @@ -268,6 +319,26 @@ qla2x00_async_logout_done(struct scsi_qla_host *vha, fc_port_t *fcport, return QLA_SUCCESS; } +int +qla2x00_async_adisc_done(struct scsi_qla_host *vha, fc_port_t *fcport, + uint16_t *data) +{ + if (data[0] == MBS_COMMAND_COMPLETE) { + qla2x00_update_fcport(vha, fcport); + + return QLA_SUCCESS; + } + + /* Retry login. */ + fcport->flags &= ~FCF_ASYNC_SENT; + if (data[1] & QLA_LOGIO_LOGIN_RETRIED) + set_bit(RELOGIN_NEEDED, &vha->dpc_flags); + else + qla2x00_mark_device_lost(vha, fcport, 1, 0); + + return QLA_SUCCESS; +} + /****************************************************************************/ /* QLogic ISP2x00 Hardware Support Functions. */ /****************************************************************************/ @@ -2062,6 +2133,7 @@ qla2x00_nvram_config(scsi_qla_host_t *vha) if (IS_QLA23XX(ha)) { nv->firmware_options[0] |= BIT_2; nv->firmware_options[0] &= ~BIT_3; + nv->firmware_options[0] &= ~BIT_6; nv->add_firmware_options[1] |= BIT_5 | BIT_4; if (IS_QLA2300(ha)) { @@ -2680,7 +2752,7 @@ qla2x00_update_fcport(scsi_qla_host_t *vha, fc_port_t *fcport) PORT_RETRY_TIME; atomic_set(&fcport->port_down_timer, ha->port_down_retry_count * PORT_RETRY_TIME); - fcport->flags &= ~FCF_LOGIN_NEEDED; + fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT); qla2x00_iidma_fcport(vha, fcport); @@ -3326,11 +3398,15 @@ qla2x00_fabric_dev_login(scsi_qla_host_t *vha, fc_port_t *fcport, retry = 0; if (IS_ALOGIO_CAPABLE(ha)) { + if (fcport->flags & FCF_ASYNC_SENT) + return rval; + fcport->flags |= FCF_ASYNC_SENT; rval = qla2x00_post_async_login_work(vha, fcport, NULL); if (!rval) return rval; } + fcport->flags &= ~FCF_ASYNC_SENT; rval = qla2x00_fabric_login(vha, fcport, next_loopid); if (rval == QLA_SUCCESS) { /* Send an ADISC to FCP2 devices.*/ diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c index d792ae3..8112e41 100644 --- a/drivers/scsi/qla2xxx/qla_iocb.c +++ b/drivers/scsi/qla2xxx/qla_iocb.c @@ -1054,6 +1054,36 @@ qla2x00_logout_iocb(srb_t *sp, struct mbx_entry *mbx) } static void +qla24xx_adisc_iocb(srb_t *sp, struct logio_entry_24xx *logio) +{ + logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; + logio->control_flags = cpu_to_le16(LCF_COMMAND_ADISC); + logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); + logio->vp_index = sp->fcport->vp_idx; +} + +static void +qla2x00_adisc_iocb(srb_t *sp, struct mbx_entry *mbx) +{ + struct qla_hw_data *ha = sp->fcport->vha->hw; + + mbx->entry_type = MBX_IOCB_TYPE; + SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); + mbx->mb0 = cpu_to_le16(MBC_GET_PORT_DATABASE); + if (HAS_EXTENDED_IDS(ha)) { + mbx->mb1 = cpu_to_le16(sp->fcport->loop_id); + mbx->mb10 = cpu_to_le16(BIT_0); + } else { + mbx->mb1 = cpu_to_le16((sp->fcport->loop_id << 8) | BIT_0); + } + mbx->mb2 = cpu_to_le16(MSW(ha->async_pd_dma)); + mbx->mb3 = cpu_to_le16(LSW(ha->async_pd_dma)); + mbx->mb6 = cpu_to_le16(MSW(MSD(ha->async_pd_dma))); + mbx->mb7 = cpu_to_le16(LSW(MSD(ha->async_pd_dma))); + mbx->mb9 = cpu_to_le16(sp->fcport->vp_idx); +} + +static void qla24xx_els_iocb(srb_t *sp, struct els_entry_24xx *els_iocb) { struct fc_bsg_job *bsg_job = ((struct srb_bsg*)sp->ctx)->bsg_job; @@ -1185,12 +1215,12 @@ qla2x00_start_sp(srb_t *sp) switch (ctx->type) { case SRB_LOGIN_CMD: IS_FWI2_CAPABLE(ha) ? - qla24xx_login_iocb(sp, pkt): + qla24xx_login_iocb(sp, pkt) : qla2x00_login_iocb(sp, pkt); break; case SRB_LOGOUT_CMD: IS_FWI2_CAPABLE(ha) ? - qla24xx_logout_iocb(sp, pkt): + qla24xx_logout_iocb(sp, pkt) : qla2x00_logout_iocb(sp, pkt); break; case SRB_ELS_CMD_RPT: @@ -1200,6 +1230,11 @@ qla2x00_start_sp(srb_t *sp) case SRB_CT_CMD: qla24xx_ct_iocb(sp, pkt); break; + case SRB_ADISC_CMD: + IS_FWI2_CAPABLE(ha) ? + qla24xx_adisc_iocb(sp, pkt) : + qla2x00_adisc_iocb(sp, pkt); + break; default: break; } diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c index 037bc41..a1968eb 100644 --- a/drivers/scsi/qla2xxx/qla_isr.c +++ b/drivers/scsi/qla2xxx/qla_isr.c @@ -899,6 +899,7 @@ qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, srb_t *sp; struct srb_logio *lio; uint16_t *data; + uint16_t status; sp = qla2x00_get_sp_from_handle(vha, func, req, mbx); if (!sp) @@ -910,7 +911,9 @@ qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, fcport = sp->fcport; data = lio->data; - data[0] = data[1] = 0; + data[0] = MBS_COMMAND_ERROR; + data[1] = lio->flags & SRB_LOGIN_RETRIED ? + QLA_LOGIO_LOGIN_RETRIED : 0; if (mbx->entry_status) { DEBUG2(printk(KERN_WARNING "scsi(%ld:%x): Async-%s error entry - entry-status=%x " @@ -921,26 +924,27 @@ qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, le16_to_cpu(mbx->status_flags))); DEBUG2(qla2x00_dump_buffer((uint8_t *)mbx, sizeof(*mbx))); - data[0] = MBS_COMMAND_ERROR; - data[1] = lio->flags & SRB_LOGIN_RETRIED ? - QLA_LOGIO_LOGIN_RETRIED: 0; goto logio_done; } - if (!mbx->status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) { + status = le16_to_cpu(mbx->status); + if (status == 0x30 && lio->ctx.type == SRB_LOGIN_CMD && + le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) + status = 0; + if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) { DEBUG2(printk(KERN_DEBUG "scsi(%ld:%x): Async-%s complete - mbx1=%x.\n", fcport->vha->host_no, sp->handle, type, le16_to_cpu(mbx->mb1))); data[0] = MBS_COMMAND_COMPLETE; - if (lio->ctx.type == SRB_LOGIN_CMD) + if (lio->ctx.type == SRB_LOGIN_CMD) { fcport->port_type = FCT_TARGET; if (le16_to_cpu(mbx->mb1) & BIT_0) fcport->port_type = FCT_INITIATOR; if (le16_to_cpu(mbx->mb1) & BIT_1) fcport->flags |= FCF_FCP2_DEVICE; - + } goto logio_done; } @@ -953,15 +957,13 @@ qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, break; default: data[0] = MBS_COMMAND_ERROR; - data[1] = lio->flags & SRB_LOGIN_RETRIED ? - QLA_LOGIO_LOGIN_RETRIED: 0; break; } DEBUG2(printk(KERN_WARNING "scsi(%ld:%x): Async-%s failed - status=%x mb0=%x mb1=%x mb2=%x " "mb6=%x mb7=%x.\n", - fcport->vha->host_no, sp->handle, type, le16_to_cpu(mbx->status), + fcport->vha->host_no, sp->handle, type, status, le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1), le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6), le16_to_cpu(mbx->mb7))); @@ -1086,7 +1088,9 @@ qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req, fcport = sp->fcport; data = lio->data; - data[0] = data[1] = 0; + data[0] = MBS_COMMAND_ERROR; + data[1] = lio->flags & SRB_LOGIN_RETRIED ? + QLA_LOGIO_LOGIN_RETRIED : 0; if (logio->entry_status) { DEBUG2(printk(KERN_WARNING "scsi(%ld:%x): Async-%s error entry - entry-status=%x.\n", @@ -1094,9 +1098,6 @@ qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req, logio->entry_status)); DEBUG2(qla2x00_dump_buffer((uint8_t *)logio, sizeof(*logio))); - data[0] = MBS_COMMAND_ERROR; - data[1] = lio->flags & SRB_LOGIN_RETRIED ? - QLA_LOGIO_LOGIN_RETRIED: 0; goto logio_done; } @@ -1107,7 +1108,7 @@ qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req, le32_to_cpu(logio->io_parameter[0]))); data[0] = MBS_COMMAND_COMPLETE; - if (lio->ctx.type == SRB_LOGOUT_CMD) + if (lio->ctx.type != SRB_LOGIN_CMD) goto logio_done; iop[0] = le32_to_cpu(logio->io_parameter[0]); @@ -1144,8 +1145,6 @@ qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req, /* Fall through. */ default: data[0] = MBS_COMMAND_ERROR; - data[1] = lio->flags & SRB_LOGIN_RETRIED ? - QLA_LOGIO_LOGIN_RETRIED: 0; break; } diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 10c14af..2e083c0 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -2639,9 +2639,19 @@ qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len, INIT_LIST_HEAD(&ha->gbl_dsd_list); + /* Get consistent memory allocated for Async Port-Database. */ + if (!IS_FWI2_CAPABLE(ha)) { + ha->async_pd = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, + &ha->async_pd_dma); + if (!ha->async_pd) + goto fail_async_pd; + } + INIT_LIST_HEAD(&ha->vp_list); return 1; +fail_async_pd: + dma_pool_free(ha->s_dma_pool, ha->ex_init_cb, ha->ex_init_cb_dma); fail_ex_init_cb: kfree(ha->npiv_info); fail_npiv_info: @@ -2757,6 +2767,9 @@ qla2x00_mem_free(struct qla_hw_data *ha) dma_pool_free(ha->s_dma_pool, ha->ex_init_cb, ha->ex_init_cb_dma); + if (ha->async_pd) + dma_pool_free(ha->s_dma_pool, ha->async_pd, ha->async_pd_dma); + if (ha->s_dma_pool) dma_pool_destroy(ha->s_dma_pool); @@ -2809,6 +2822,8 @@ qla2x00_mem_free(struct qla_hw_data *ha) ha->init_cb_dma = 0; ha->ex_init_cb = NULL; ha->ex_init_cb_dma = 0; + ha->async_pd = NULL; + ha->async_pd_dma = 0; ha->s_dma_pool = NULL; ha->dl_dma_pool = NULL; @@ -2935,6 +2950,8 @@ qla2x00_post_async_work(login, QLA_EVT_ASYNC_LOGIN); qla2x00_post_async_work(login_done, QLA_EVT_ASYNC_LOGIN_DONE); qla2x00_post_async_work(logout, QLA_EVT_ASYNC_LOGOUT); qla2x00_post_async_work(logout_done, QLA_EVT_ASYNC_LOGOUT_DONE); +qla2x00_post_async_work(adisc, QLA_EVT_ASYNC_ADISC); +qla2x00_post_async_work(adisc_done, QLA_EVT_ASYNC_ADISC_DONE); int qla2x00_post_uevent_work(struct scsi_qla_host *vha, u32 code) @@ -3004,6 +3021,14 @@ qla2x00_do_work(struct scsi_qla_host *vha) qla2x00_async_logout_done(vha, e->u.logio.fcport, e->u.logio.data); break; + case QLA_EVT_ASYNC_ADISC: + qla2x00_async_adisc(vha, e->u.logio.fcport, + e->u.logio.data); + break; + case QLA_EVT_ASYNC_ADISC_DONE: + qla2x00_async_adisc_done(vha, e->u.logio.fcport, + e->u.logio.data); + break; case QLA_EVT_UEVENT: qla2x00_uevent_emit(vha, e->u.uevent.code); break; @@ -3029,9 +3054,8 @@ void qla2x00_relogin(struct scsi_qla_host *vha) * If the port is not ONLINE then try to login * to it if we haven't run out of retries. */ - if (atomic_read(&fcport->state) != - FCS_ONLINE && fcport->login_retry) { - + if (atomic_read(&fcport->state) != FCS_ONLINE && + fcport->login_retry && !(fcport->flags & FCF_ASYNC_SENT)) { fcport->login_retry--; if (fcport->flags & FCF_FABRIC_DEVICE) { if (fcport->flags & FCF_FCP2_DEVICE) @@ -3042,6 +3066,7 @@ void qla2x00_relogin(struct scsi_qla_host *vha) fcport->d_id.b.al_pa); if (IS_ALOGIO_CAPABLE(ha)) { + fcport->flags |= FCF_ASYNC_SENT; data[0] = 0; data[1] = QLA_LOGIO_LOGIN_RETRIED; status = qla2x00_post_async_login_work( |