From mboxrd@z Thu Jan 1 00:00:00 1970 From: Don Brace Subject: [PATCH v3 14/42] hpsa: use ioaccel2 path to submit IOs to physical drives in HBA mode. Date: Tue, 17 Mar 2015 15:03:41 -0500 Message-ID: <20150317200341.19856.20947.stgit@brunhilda> References: <20150317200139.19856.87982.stgit@brunhilda> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Return-path: Received: from g2t2354.austin.hp.com ([15.217.128.53]:34399 "EHLO g2t2354.austin.hp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753764AbbCQUFV (ORCPT ); Tue, 17 Mar 2015 16:05:21 -0400 In-Reply-To: <20150317200139.19856.87982.stgit@brunhilda> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: scott.teel@pmcs.com, Kevin.Barnett@pmcs.com, james.bottomley@parallels.com, hch@infradead.org, Justin.Lindley@pmcs.com, brace@pmcs.com Cc: linux-scsi@vger.kernel.org From: Joe Handzik use ioaccel2 path to submit I/O to physical drives in HBA mode Reviewed-by: Scott Teel Reviewed-by: Kevin Barnett Signed-off-by: Joe Handzik Signed-off-by: Don Brace --- drivers/scsi/hpsa.c | 10 +++++++++- drivers/scsi/hpsa.h | 1 + 2 files changed, 10 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index e9d3d71..76f9042 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -1123,6 +1123,11 @@ static void hpsa_scsi_update_entry(struct ctlr_info *h, int hostno, h->dev[entry]->raid_map = new_entry->raid_map; h->dev[entry]->ioaccel_handle = new_entry->ioaccel_handle; } + if (new_entry->hba_ioaccel_enabled) { + h->dev[entry]->ioaccel_handle = new_entry->ioaccel_handle; + wmb(); /* set ioaccel_handle *before* hba_ioaccel_enabled */ + } + h->dev[entry]->hba_ioaccel_enabled = new_entry->hba_ioaccel_enabled; h->dev[entry]->offload_config = new_entry->offload_config; h->dev[entry]->offload_to_mirror = new_entry->offload_to_mirror; h->dev[entry]->queue_depth = new_entry->queue_depth; @@ -3039,6 +3044,7 @@ static int hpsa_update_device_info(struct ctlr_info *h, this_device->offload_config = 0; this_device->offload_enabled = 0; this_device->offload_to_be_enabled = 0; + this_device->hba_ioaccel_enabled = 0; this_device->volume_offline = 0; this_device->queue_depth = h->nr_cmds; } @@ -3327,6 +3333,8 @@ static void hpsa_get_ioaccel_drive_info(struct ctlr_info *h, (struct ext_report_lun_entry *) lunaddrbytes; dev->ioaccel_handle = rle->ioaccel_handle; + if (PHYS_IOACCEL(lunaddrbytes) && dev->ioaccel_handle) + dev->hba_ioaccel_enabled = 1; memset(id_phys, 0, sizeof(*id_phys)); rc = hpsa_bmic_id_physical_device(h, lunaddrbytes, GET_BMIC_DRIVE_NUMBER(lunaddrbytes), id_phys, @@ -4428,7 +4436,7 @@ static int hpsa_ioaccel_submit(struct ctlr_info *h, rc = hpsa_scsi_ioaccel_raid_map(h, c); if (rc < 0) /* scsi_dma_map failed. */ rc = SCSI_MLQUEUE_HOST_BUSY; - } else if (dev->ioaccel_handle) { + } else if (dev->hba_ioaccel_enabled) { hpsa_cmd_init(h, c->cmdindex, c); c->cmd_type = CMD_SCSI; c->scsi_cmd = cmd; diff --git a/drivers/scsi/hpsa.h b/drivers/scsi/hpsa.h index df2468c..87a70b5 100644 --- a/drivers/scsi/hpsa.h +++ b/drivers/scsi/hpsa.h @@ -55,6 +55,7 @@ struct hpsa_scsi_dev_t { int offload_config; /* I/O accel RAID offload configured */ int offload_enabled; /* I/O accel RAID offload enabled */ int offload_to_be_enabled; + int hba_ioaccel_enabled; int offload_to_mirror; /* Send next I/O accelerator RAID * offload request to mirror drive */