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scsi: be2iscsi: Add V1 of EPFW cleanup IOCTL

Browse source 
mgmt_epfw_cleanup does not implement v1 of OPCODE_COMMON_ISCSI_CLEANUP
IOCTL for SkyHawk.

Replace use of MCCQ with BMBX for issuing the IOCTL.
Remove be_mcc_compl_poll which is no longer needed.

Signed-off-by: Jitendra Bhivare <jitendra.bhivare@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Jitendra Bhivare 2016-08-19 15:20:17 +05:30 committed by Martin K. Petersen
parent 4d2ee1e688
commit f79929deb5
5 changed files with 73 additions and 108 deletions
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96
drivers/scsi/be2iscsi/be_cmds.c
View file

@ -478,53 +478,6 @@ int beiscsi_process_mcc_compl(struct be_ctrl_info *ctrl,
return 0;
}
/*
* be_mcc_compl_poll()- Wait for MBX completion
* @phba: driver private structure
*
* Wait till no more pending mcc requests are present
*
* return
* Success: 0
* Failure: Non-Zero
*
**/
int be_mcc_compl_poll(struct beiscsi_hba *phba, unsigned int tag)
{
struct be_ctrl_info *ctrl = &phba->ctrl;
int i;
if (!test_bit(MCC_TAG_STATE_RUNNING,
&ctrl->ptag_state[tag].tag_state)) {
beiscsi_log(phba, KERN_ERR,
BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
"BC_%d: tag %u state not running\n", tag);
return 0;
}
for (i = 0; i < mcc_timeout; i++) {
if (beiscsi_hba_in_error(phba))
return -EIO;
beiscsi_process_mcc_cq(phba);
/* after polling, wrb and tag need to be released */
if (!test_bit(MCC_TAG_STATE_RUNNING,
&ctrl->ptag_state[tag].tag_state)) {
free_mcc_wrb(ctrl, tag);
break;
}
udelay(100);
}
if (i < mcc_timeout)
return 0;
beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
"BC_%d : FW Timed Out\n");
set_bit(BEISCSI_HBA_FW_TIMEOUT, &phba->state);
beiscsi_ue_detect(phba);
return -EBUSY;
}
void be_mcc_notify(struct beiscsi_hba *phba, unsigned int tag)
{
struct be_queue_info *mccq = &phba->ctrl.mcc_obj.q;
@ -1645,3 +1598,52 @@ int beiscsi_init_sliport(struct beiscsi_hba *phba)
/* indicate driver is loading */
return beiscsi_cmd_special_wrb(&phba->ctrl, 1);
}
/**
* beiscsi_cmd_iscsi_cleanup()- Inform FW to cleanup EP data structures.
* @phba: pointer to dev priv structure
* @ulp: ULP number.
*
* return
* Success: 0
* Failure: Non-Zero Value
**/
int beiscsi_cmd_iscsi_cleanup(struct beiscsi_hba *phba, unsigned short ulp)
{
struct be_ctrl_info *ctrl = &phba->ctrl;
struct iscsi_cleanup_req_v1 *req_v1;
struct iscsi_cleanup_req *req;
struct be_mcc_wrb *wrb;
int status;
mutex_lock(&ctrl->mbox_lock);
wrb = wrb_from_mbox(&ctrl->mbox_mem);
req = embedded_payload(wrb);
be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
OPCODE_COMMON_ISCSI_CLEANUP, sizeof(*req));
/**
* TODO: Check with FW folks the chute value to be set.
* For now, use the ULP_MASK as the chute value.
*/
if (is_chip_be2_be3r(phba)) {
req->chute = (1 << ulp);
req->hdr_ring_id = HWI_GET_DEF_HDRQ_ID(phba, ulp);
req->data_ring_id = HWI_GET_DEF_BUFQ_ID(phba, ulp);
} else {
req_v1 = (struct iscsi_cleanup_req_v1 *)req;
req_v1->hdr.version = 1;
req_v1->hdr_ring_id = cpu_to_le16(HWI_GET_DEF_HDRQ_ID(phba,
ulp));
req_v1->data_ring_id = cpu_to_le16(HWI_GET_DEF_BUFQ_ID(phba,
ulp));
}
status = be_mbox_notify(ctrl);
if (status)
beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT,
"BG_%d : %s failed %d\n", __func__, ulp);
mutex_unlock(&ctrl->mbox_lock);
return status;
}

15
drivers/scsi/be2iscsi/be_cmds.h
View file

@ -768,6 +768,8 @@ int beiscsi_check_fw_rdy(struct beiscsi_hba *phba);
int beiscsi_init_sliport(struct beiscsi_hba *phba);
int beiscsi_cmd_iscsi_cleanup(struct beiscsi_hba *phba, unsigned short ulp_num);
int beiscsi_cmd_eq_create(struct be_ctrl_info *ctrl,
struct be_queue_info *eq, int eq_delay);
@ -782,8 +784,6 @@ int beiscsi_cmd_mccq_create(struct beiscsi_hba *phba,
struct be_queue_info *mccq,
struct be_queue_info *cq);
int be_poll_mcc(struct be_ctrl_info *ctrl);
unsigned int be_cmd_get_initname(struct beiscsi_hba *phba);
void free_mcc_wrb(struct be_ctrl_info *ctrl, unsigned int tag);
@ -798,9 +798,7 @@ int __beiscsi_mcc_compl_status(struct beiscsi_hba *phba,
unsigned int tag,
struct be_mcc_wrb **wrb,
struct be_dma_mem *mbx_cmd_mem);
/*ISCSI Functuions */
struct be_mcc_wrb *wrb_from_mbox(struct be_dma_mem *mbox_mem);
int be_mcc_compl_poll(struct beiscsi_hba *phba, unsigned int tag);
void be_mcc_notify(struct beiscsi_hba *phba, unsigned int tag);
struct be_mcc_wrb *alloc_mcc_wrb(struct beiscsi_hba *phba,
unsigned int *ref_tag);
@ -1063,7 +1061,16 @@ struct iscsi_cleanup_req {
u16 chute;
u8 hdr_ring_id;
u8 data_ring_id;
} __packed;
struct iscsi_cleanup_req_v1 {
struct be_cmd_req_hdr hdr;
u16 chute;
u16 rsvd1;
u16 hdr_ring_id;
u16 rsvd2;
u16 data_ring_id;
u16 rsvd3;
} __packed;
struct eq_delay {

27
drivers/scsi/be2iscsi/be_main.c
View file

@ -3249,7 +3249,6 @@ beiscsi_create_def_hdr(struct beiscsi_hba *phba,
"BM_%d : iscsi hdr def pdu id for ULP : %d is %d\n",
ulp_num,
phwi_context->be_def_hdrq[ulp_num].id);
hwi_post_async_buffers(phba, BEISCSI_DEFQ_HDR, ulp_num);
return 0;
}
@ -3304,11 +3303,9 @@ beiscsi_create_def_data(struct beiscsi_hba *phba,
ulp_num,
phwi_context->be_def_dataq[ulp_num].id);
hwi_post_async_buffers(phba, BEISCSI_DEFQ_DATA, ulp_num);
beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
"BM_%d : DEFAULT PDU DATA RING CREATED"
"on ULP : %d\n", ulp_num);
return 0;
}
@ -3757,6 +3754,15 @@ static int hwi_init_port(struct beiscsi_hba *phba)
ulp_num);
goto error;
}
/**
* Now that the default PDU rings have been created,
* let EP know about it.
* Call beiscsi_cmd_iscsi_cleanup before posting?
*/
hwi_post_async_buffers(phba, BEISCSI_DEFQ_HDR,
ulp_num);
hwi_post_async_buffers(phba, BEISCSI_DEFQ_DATA,
ulp_num);
}
}
@ -4235,19 +4241,12 @@ static void hwi_purge_eq(struct beiscsi_hba *phba)
static void beiscsi_cleanup_port(struct beiscsi_hba *phba)
{
int mgmt_status, ulp_num;
struct ulp_cid_info *ptr_cid_info = NULL;
int ulp_num;
for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported)) {
mgmt_status = mgmt_epfw_cleanup(phba, ulp_num);
if (mgmt_status)
beiscsi_log(phba, KERN_WARNING,
BEISCSI_LOG_INIT,
"BM_%d : mgmt_epfw_cleanup FAILED"
" for ULP_%d\n", ulp_num);
}
}
for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++)
if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported))
beiscsi_cmd_iscsi_cleanup(phba, ulp_num);
hwi_purge_eq(phba);
hwi_cleanup_port(phba);

42
drivers/scsi/be2iscsi/be_mgmt.c
View file

@ -256,48 +256,6 @@ unsigned int mgmt_vendor_specific_fw_cmd(struct be_ctrl_info *ctrl,
return tag;
}
/**
* mgmt_epfw_cleanup()- Inform FW to cleanup data structures.
* @phba: pointer to dev priv structure
* @ulp_num: ULP number.
*
* return
* Success: 0
* Failure: Non-Zero Value
**/
int mgmt_epfw_cleanup(struct beiscsi_hba *phba, unsigned short ulp_num)
{
struct be_ctrl_info *ctrl = &phba->ctrl;
struct be_mcc_wrb *wrb;
struct iscsi_cleanup_req *req;
unsigned int tag;
int status;
mutex_lock(&ctrl->mbox_lock);
wrb = alloc_mcc_wrb(phba, &tag);
if (!wrb) {
mutex_unlock(&ctrl->mbox_lock);
return -EBUSY;
}
req = embedded_payload(wrb);
be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
OPCODE_COMMON_ISCSI_CLEANUP, sizeof(*req));
req->chute = (1 << ulp_num);
req->hdr_ring_id = cpu_to_le16(HWI_GET_DEF_HDRQ_ID(phba, ulp_num));
req->data_ring_id = cpu_to_le16(HWI_GET_DEF_BUFQ_ID(phba, ulp_num));
be_mcc_notify(phba, tag);
status = be_mcc_compl_poll(phba, tag);
if (status)
beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT,
"BG_%d : mgmt_epfw_cleanup , FAILED\n");
mutex_unlock(&ctrl->mbox_lock);
return status;
}
unsigned int mgmt_invalidate_icds(struct beiscsi_hba *phba,
struct invalidate_command_table *inv_tbl,
unsigned int num_invalidate, unsigned int cid,

1
drivers/scsi/be2iscsi/be_mgmt.h
View file

@ -96,7 +96,6 @@ struct mcc_wrb {
struct mcc_wrb_payload payload;
};
int mgmt_epfw_cleanup(struct beiscsi_hba *phba, unsigned short chute);
int mgmt_open_connection(struct beiscsi_hba *phba,
struct sockaddr *dst_addr,
struct beiscsi_endpoint *beiscsi_ep,