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| author |   Jayamohan Kallickal <jayamohank@gmail.com> | 2013-09-28 15:35:38 -0700 |
|---|---|---|
| committer |   James Bottomley <JBottomley@Parallels.com> | 2013-10-25 09:58:04 +0100 |
| commit | 15a90fe05c91d15ac46b68e3644e5f9f1bb51917 (patch) | |
| tree | bdb203c66ddd1d1937e3fbe7ed88c777a3a8b068 /drivers/scsi/be2iscsi/be_cmds.c | |
| parent | [SCSI] MAINTAINER: Updated maintainer info for bnx2fc (diff) | |
| download | linux-dev-15a90fe05c91d15ac46b68e3644e5f9f1bb51917.tar.xz linux-dev-15a90fe05c91d15ac46b68e3644e5f9f1bb51917.zip | |
[SCSI] be2iscsi: Fix Template HDR IOCTL
Allocating memory in the Host which will be used by the
TOE functionality during Session Offload. This fix will
allow performance improvement as adapter memory contention
will be reduced.
Signed-off-by: John Soni Jose <sony.john-n@emulex.com>
Signed-off-by: Jayamohan Kallickal <jayamohan.kallickal@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/be2iscsi/be_cmds.c')
| -rw-r--r-- | drivers/scsi/be2iscsi/be_cmds.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/drivers/scsi/be2iscsi/be_cmds.c b/drivers/scsi/be2iscsi/be_cmds.c index e66aa7c11a8a..bb70dcb493c6 100644 --- a/drivers/scsi/be2iscsi/be_cmds.c +++ b/drivers/scsi/be2iscsi/be_cmds.c @@ -1104,6 +1104,51 @@ int be_cmd_wrbq_create(struct be_ctrl_info *ctrl, struct be_dma_mem *q_mem, return status; } +int be_cmd_iscsi_post_template_hdr(struct be_ctrl_info *ctrl, + struct be_dma_mem *q_mem) +{ + struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem); + struct be_post_template_pages_req *req = embedded_payload(wrb); + int status; + + spin_lock(&ctrl->mbox_lock); + + memset(wrb, 0, sizeof(*wrb)); + be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0); + be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON, + OPCODE_COMMON_ADD_TEMPLATE_HEADER_BUFFERS, + sizeof(*req)); + + req->num_pages = PAGES_4K_SPANNED(q_mem->va, q_mem->size); + req->type = BEISCSI_TEMPLATE_HDR_TYPE_ISCSI; + be_cmd_page_addrs_prepare(req->pages, ARRAY_SIZE(req->pages), q_mem); + + status = be_mbox_notify(ctrl); + spin_unlock(&ctrl->mbox_lock); + return status; +} + +int be_cmd_iscsi_remove_template_hdr(struct be_ctrl_info *ctrl) +{ + struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem); + struct be_remove_template_pages_req *req = embedded_payload(wrb); + int status; + + spin_lock(&ctrl->mbox_lock); + + memset(wrb, 0, sizeof(*wrb)); + be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0); + be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON, + OPCODE_COMMON_REMOVE_TEMPLATE_HEADER_BUFFERS, + sizeof(*req)); + + req->type = BEISCSI_TEMPLATE_HDR_TYPE_ISCSI; + + status = be_mbox_notify(ctrl); + spin_unlock(&ctrl->mbox_lock); + return status; +} + int be_cmd_iscsi_post_sgl_pages(struct be_ctrl_info *ctrl, struct be_dma_mem *q_mem, u32 page_offset, u32 num_pages) |