From: Krishna Gudipati Date: Sat, 25 Jun 2011 03:29:07 +0000 (-0700) Subject: [SCSI] bfa: Driver and BSG enhancements. X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=61e62e21afe469854e04546ea10b7a6f4cfd1142;p=linux-beck.git [SCSI] bfa: Driver and BSG enhancements. - Added a new module parameter max_xfer_size to set the max_sectors in the scsi_host template. - Added logic to handle request_irq() failure so that msix vector resource is de-allocated immediately when failure happens. - BSG enhancements to collect vHBA releated info and port log. - Removed the workaround of incrementing the module refcnt on bsg request. Signed-off-by: Krishna Gudipati Signed-off-by: James Bottomley --- diff --git a/drivers/scsi/bfa/bfa_defs_svc.h b/drivers/scsi/bfa/bfa_defs_svc.h index 4b6529c7a531..0b97525803fb 100644 --- a/drivers/scsi/bfa/bfa_defs_svc.h +++ b/drivers/scsi/bfa/bfa_defs_svc.h @@ -1042,6 +1042,19 @@ struct bfa_itnim_ioprofile_s { struct bfa_itnim_latency_s io_latency; }; +/* + * vHBA port attribute values. + */ +struct bfa_vhba_attr_s { + wwn_t nwwn; /* node wwn */ + wwn_t pwwn; /* port wwn */ + u32 pid; /* port ID */ + bfa_boolean_t io_profile; /* get it from fcpim mod */ + bfa_boolean_t plog_enabled; /* portlog is enabled */ + u16 path_tov; + u8 rsvd[2]; +}; + /* * FC physical port statistics. */ diff --git a/drivers/scsi/bfa/bfad.c b/drivers/scsi/bfa/bfad.c index 0ed260852159..beb30a748ea5 100644 --- a/drivers/scsi/bfa/bfad.c +++ b/drivers/scsi/bfa/bfad.c @@ -56,6 +56,7 @@ int fdmi_enable = BFA_TRUE; int pcie_max_read_reqsz; int bfa_debugfs_enable = 1; int msix_disable_cb = 0, msix_disable_ct = 0; +int max_xfer_size = BFAD_MAX_SECTORS >> 1; /* Firmware releated */ u32 bfi_image_cb_size, bfi_image_ct_size, bfi_image_ct2_size; @@ -144,6 +145,9 @@ MODULE_PARM_DESC(pcie_max_read_reqsz, "PCIe max read request size, default=0 " module_param(bfa_debugfs_enable, int, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(bfa_debugfs_enable, "Enables debugfs feature, default=1," " Range[false:0|true:1]"); +module_param(max_xfer_size, int, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(max_xfer_size, "default=32MB," + " Range[64k|128k|256k|512k|1024k|2048k]"); static void bfad_sm_uninit(struct bfad_s *bfad, enum bfad_sm_event event); @@ -1015,6 +1019,12 @@ bfad_start_ops(struct bfad_s *bfad) { struct bfad_vport_s *vport, *vport_new; struct bfa_fcs_driver_info_s driver_info; + /* Limit min/max. xfer size to [64k-32MB] */ + if (max_xfer_size < BFAD_MIN_SECTORS >> 1) + max_xfer_size = BFAD_MIN_SECTORS >> 1; + if (max_xfer_size > BFAD_MAX_SECTORS >> 1) + max_xfer_size = BFAD_MAX_SECTORS >> 1; + /* Fill the driver_info info to fcs*/ memset(&driver_info, 0, sizeof(driver_info)); strncpy(driver_info.version, BFAD_DRIVER_VERSION, @@ -1231,6 +1241,9 @@ bfad_install_msix_handler(struct bfad_s *bfad) free_irq(bfad->msix_tab[j].msix.vector, &bfad->msix_tab[j]); + bfad->bfad_flags &= ~BFAD_MSIX_ON; + pci_disable_msix(bfad->pcidev); + return 1; } } @@ -1306,6 +1319,7 @@ line_based: /* Enable interrupt handler failed */ return 1; } + bfad->bfad_flags |= BFAD_INTX_ON; return error; } @@ -1322,7 +1336,7 @@ bfad_remove_intr(struct bfad_s *bfad) pci_disable_msix(bfad->pcidev); bfad->bfad_flags &= ~BFAD_MSIX_ON; - } else { + } else if (bfad->bfad_flags & BFAD_INTX_ON) { free_irq(bfad->pcidev->irq, bfad); } } diff --git a/drivers/scsi/bfa/bfad_bsg.c b/drivers/scsi/bfa/bfad_bsg.c index 552bb250a210..89f863ed2334 100644 --- a/drivers/scsi/bfa/bfad_bsg.c +++ b/drivers/scsi/bfa/bfad_bsg.c @@ -22,30 +22,6 @@ BFA_TRC_FILE(LDRV, BSG); -/* bfad_im_bsg_get_kobject - increment the bfa refcnt */ -static void -bfad_im_bsg_get_kobject(struct fc_bsg_job *job) -{ - struct Scsi_Host *shost = job->shost; - unsigned long flags; - - spin_lock_irqsave(shost->host_lock, flags); - __module_get(shost->dma_dev->driver->owner); - spin_unlock_irqrestore(shost->host_lock, flags); -} - -/* bfad_im_bsg_put_kobject - decrement the bfa refcnt */ -static void -bfad_im_bsg_put_kobject(struct fc_bsg_job *job) -{ - struct Scsi_Host *shost = job->shost; - unsigned long flags; - - spin_lock_irqsave(shost->host_lock, flags); - module_put(shost->dma_dev->driver->owner); - spin_unlock_irqrestore(shost->host_lock, flags); -} - int bfad_iocmd_ioc_enable(struct bfad_s *bfad, void *cmd) { @@ -1467,6 +1443,25 @@ out: return 0; } +int +bfad_iocmd_vhba_query(struct bfad_s *bfad, void *cmd) +{ + struct bfa_bsg_vhba_attr_s *iocmd = + (struct bfa_bsg_vhba_attr_s *)cmd; + struct bfa_vhba_attr_s *attr = &iocmd->attr; + unsigned long flags; + + spin_lock_irqsave(&bfad->bfad_lock, flags); + attr->pwwn = bfad->bfa.ioc.attr->pwwn; + attr->nwwn = bfad->bfa.ioc.attr->nwwn; + attr->plog_enabled = (bfa_boolean_t)bfad->bfa.plog->plog_enabled; + attr->io_profile = bfa_fcpim_get_io_profile(&bfad->bfa); + attr->path_tov = bfa_fcpim_path_tov_get(&bfad->bfa); + iocmd->status = BFA_STATUS_OK; + spin_unlock_irqrestore(&bfad->bfad_lock, flags); + return 0; +} + int bfad_iocmd_phy_update(struct bfad_s *bfad, void *cmd, unsigned int payload_len) { @@ -1497,6 +1492,25 @@ out: return 0; } +int +bfad_iocmd_porglog_get(struct bfad_s *bfad, void *cmd) +{ + struct bfa_bsg_debug_s *iocmd = (struct bfa_bsg_debug_s *)cmd; + void *iocmd_bufptr; + + if (iocmd->bufsz < sizeof(struct bfa_plog_s)) { + bfa_trc(bfad, sizeof(struct bfa_plog_s)); + iocmd->status = BFA_STATUS_EINVAL; + goto out; + } + + iocmd->status = BFA_STATUS_OK; + iocmd_bufptr = (char *)iocmd + sizeof(struct bfa_bsg_debug_s); + memcpy(iocmd_bufptr, (u8 *) &bfad->plog_buf, sizeof(struct bfa_plog_s)); +out: + return 0; +} + static int bfad_iocmd_handler(struct bfad_s *bfad, unsigned int cmd, void *iocmd, unsigned int payload_len) @@ -1682,6 +1696,12 @@ bfad_iocmd_handler(struct bfad_s *bfad, unsigned int cmd, void *iocmd, case IOCMD_PHY_READ_FW: rc = bfad_iocmd_phy_read(bfad, iocmd, payload_len); break; + case IOCMD_VHBA_QUERY: + rc = bfad_iocmd_vhba_query(bfad, iocmd); + break; + case IOCMD_DEBUG_PORTLOG: + rc = bfad_iocmd_porglog_get(bfad, iocmd); + break; default: rc = EINVAL; break; @@ -2111,9 +2131,6 @@ bfad_im_bsg_request(struct fc_bsg_job *job) { uint32_t rc = BFA_STATUS_OK; - /* Increment the bfa module refcnt - if bsg request is in service */ - bfad_im_bsg_get_kobject(job); - switch (job->request->msgcode) { case FC_BSG_HST_VENDOR: /* Process BSG HST Vendor requests */ @@ -2132,9 +2149,6 @@ bfad_im_bsg_request(struct fc_bsg_job *job) break; } - /* Decrement the bfa module refcnt - on completion of bsg request */ - bfad_im_bsg_put_kobject(job); - return rc; } diff --git a/drivers/scsi/bfa/bfad_bsg.h b/drivers/scsi/bfa/bfad_bsg.h index 5d89c1dd977a..99b0e8a70c89 100644 --- a/drivers/scsi/bfa/bfad_bsg.h +++ b/drivers/scsi/bfa/bfad_bsg.h @@ -84,6 +84,8 @@ enum { IOCMD_PHY_GET_STATS, IOCMD_PHY_UPDATE_FW, IOCMD_PHY_READ_FW, + IOCMD_VHBA_QUERY, + IOCMD_DEBUG_PORTLOG, }; struct bfa_bsg_gen_s { @@ -459,6 +461,16 @@ struct bfa_bsg_phy_s { u64 buf_ptr; }; +struct bfa_bsg_debug_s { + bfa_status_t status; + u16 bfad_num; + u16 rsvd; + u32 bufsz; + int inst_no; + u64 buf_ptr; + u64 offset; +}; + struct bfa_bsg_phy_stats_s { bfa_status_t status; u16 bfad_num; @@ -466,6 +478,13 @@ struct bfa_bsg_phy_stats_s { struct bfa_phy_stats_s stats; }; +struct bfa_bsg_vhba_attr_s { + bfa_status_t status; + u16 bfad_num; + u16 pcifn_id; + struct bfa_vhba_attr_s attr; +}; + struct bfa_bsg_fcpt_s { bfa_status_t status; u16 vf_id; diff --git a/drivers/scsi/bfa/bfad_drv.h b/drivers/scsi/bfa/bfad_drv.h index 6363dd7e15b4..8ec6e1d0064f 100644 --- a/drivers/scsi/bfa/bfad_drv.h +++ b/drivers/scsi/bfa/bfad_drv.h @@ -80,7 +80,7 @@ #define BFAD_HAL_INIT_FAIL 0x00000100 #define BFAD_FC4_PROBE_DONE 0x00000200 #define BFAD_PORT_DELETE 0x00000001 - +#define BFAD_INTX_ON 0x00000400 /* * BFAD related definition */ @@ -93,6 +93,8 @@ */ #define BFAD_LUN_QUEUE_DEPTH 32 #define BFAD_IO_MAX_SGE SG_ALL +#define BFAD_MIN_SECTORS 128 /* 64k */ +#define BFAD_MAX_SECTORS 0xFFFF /* 32 MB */ #define bfad_isr_t irq_handler_t @@ -343,6 +345,7 @@ extern int msix_disable_ct; extern int fdmi_enable; extern int supported_fc4s; extern int pcie_max_read_reqsz; +extern int max_xfer_size; extern int bfa_debugfs_enable; extern struct mutex bfad_mutex; diff --git a/drivers/scsi/bfa/bfad_im.c b/drivers/scsi/bfa/bfad_im.c index 30ca26db7846..f2bf81265ae5 100644 --- a/drivers/scsi/bfa/bfad_im.c +++ b/drivers/scsi/bfa/bfad_im.c @@ -700,6 +700,9 @@ bfad_scsi_host_alloc(struct bfad_im_port_s *im_port, struct bfad_s *bfad) else sht = &bfad_im_vport_template; + if (max_xfer_size != BFAD_MAX_SECTORS >> 1) + sht->max_sectors = max_xfer_size << 1; + sht->sg_tablesize = bfad->cfg_data.io_max_sge; return scsi_host_alloc(sht, sizeof(unsigned long)); @@ -777,7 +780,7 @@ struct scsi_host_template bfad_im_scsi_host_template = { .cmd_per_lun = 3, .use_clustering = ENABLE_CLUSTERING, .shost_attrs = bfad_im_host_attrs, - .max_sectors = 0xFFFF, + .max_sectors = BFAD_MAX_SECTORS, .vendor_id = BFA_PCI_VENDOR_ID_BROCADE, }; @@ -799,7 +802,7 @@ struct scsi_host_template bfad_im_vport_template = { .cmd_per_lun = 3, .use_clustering = ENABLE_CLUSTERING, .shost_attrs = bfad_im_vport_attrs, - .max_sectors = 0xFFFF, + .max_sectors = BFAD_MAX_SECTORS, }; bfa_status_t