diff options
| author | Jayamohan Kallickal <jayamohan.kallickal@emulex.com> | 2014-05-05 21:41:26 -0400 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2014-05-28 12:13:15 -0400 |
| commit | 73af08e11c6638e2abd6b1fa13cdab58c2bbdbf8 (patch) | |
| tree | f0e8c962e78abbe22c5fe034022368dc8453d2ea /drivers/scsi/be2iscsi/be_mgmt.c | |
| parent | 0598b8afd65d6b0893d217f7cf77ea315cdfcb5b (diff) | |
be2iscsi: Fix interrupt Coalescing mechanism.
Signed-off-by: Minh Tran <minhduc.tran@emulex.com>
Signed-off-by: John Soni Jose <sony.john-n@emulex.com>
Signed-off-by: Jayamohan Kallickal <jayamohan.kallickal@emulex.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/scsi/be2iscsi/be_mgmt.c')
| -rw-r--r-- | drivers/scsi/be2iscsi/be_mgmt.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/drivers/scsi/be2iscsi/be_mgmt.c b/drivers/scsi/be2iscsi/be_mgmt.c index 712911fba075..52a36fba1e2b 100644 --- a/drivers/scsi/be2iscsi/be_mgmt.c +++ b/drivers/scsi/be2iscsi/be_mgmt.c | |||
| @@ -155,6 +155,43 @@ void beiscsi_ue_detect(struct beiscsi_hba *phba) | |||
| 155 | } | 155 | } |
| 156 | } | 156 | } |
| 157 | 157 | ||
| 158 | int be_cmd_modify_eq_delay(struct beiscsi_hba *phba, | ||
| 159 | struct be_set_eqd *set_eqd, int num) | ||
| 160 | { | ||
| 161 | struct be_ctrl_info *ctrl = &phba->ctrl; | ||
| 162 | struct be_mcc_wrb *wrb; | ||
| 163 | struct be_cmd_req_modify_eq_delay *req; | ||
| 164 | unsigned int tag = 0; | ||
| 165 | int i; | ||
| 166 | |||
| 167 | spin_lock(&ctrl->mbox_lock); | ||
| 168 | tag = alloc_mcc_tag(phba); | ||
| 169 | if (!tag) { | ||
| 170 | spin_unlock(&ctrl->mbox_lock); | ||
| 171 | return tag; | ||
| 172 | } | ||
| 173 | |||
| 174 | wrb = wrb_from_mccq(phba); | ||
| 175 | req = embedded_payload(wrb); | ||
| 176 | |||
| 177 | wrb->tag0 |= tag; | ||
| 178 | be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0); | ||
| 179 | be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON, | ||
| 180 | OPCODE_COMMON_MODIFY_EQ_DELAY, sizeof(*req)); | ||
| 181 | |||
| 182 | req->num_eq = cpu_to_le32(num); | ||
| 183 | for (i = 0; i < num; i++) { | ||
| 184 | req->delay[i].eq_id = cpu_to_le32(set_eqd[i].eq_id); | ||
| 185 | req->delay[i].phase = 0; | ||
| 186 | req->delay[i].delay_multiplier = | ||
| 187 | cpu_to_le32(set_eqd[i].delay_multiplier); | ||
| 188 | } | ||
| 189 | |||
| 190 | be_mcc_notify(phba); | ||
| 191 | spin_unlock(&ctrl->mbox_lock); | ||
| 192 | return tag; | ||
| 193 | } | ||
| 194 | |||
| 158 | /** | 195 | /** |
| 159 | * mgmt_reopen_session()- Reopen a session based on reopen_type | 196 | * mgmt_reopen_session()- Reopen a session based on reopen_type |
| 160 | * @phba: Device priv structure instance | 197 | * @phba: Device priv structure instance |