diff options
Diffstat (limited to 'drivers/target/tcm_fc')
| -rw-r--r-- | drivers/target/tcm_fc/tcm_fc.h | 8 | ||||
| -rw-r--r-- | drivers/target/tcm_fc/tfc_cmd.c | 147 | ||||
| -rw-r--r-- | drivers/target/tcm_fc/tfc_conf.c | 4 | ||||
| -rw-r--r-- | drivers/target/tcm_fc/tfc_sess.c | 21 |
4 files changed, 46 insertions, 134 deletions
diff --git a/drivers/target/tcm_fc/tcm_fc.h b/drivers/target/tcm_fc/tcm_fc.h index e05c55100ec6..830657908db8 100644 --- a/drivers/target/tcm_fc/tcm_fc.h +++ b/drivers/target/tcm_fc/tcm_fc.h @@ -17,7 +17,7 @@ #ifndef __TCM_FC_H__ #define __TCM_FC_H__ -#define FT_VERSION "0.3" +#define FT_VERSION "0.4" #define FT_NAMELEN 32 /* length of ASCII WWPNs including pad */ #define FT_TPG_NAMELEN 32 /* max length of TPG name */ @@ -113,12 +113,10 @@ struct ft_lport_acl { * Commands */ struct ft_cmd { - u32 lun; /* LUN from request */ struct ft_sess *sess; /* session held for cmd */ struct fc_seq *seq; /* sequence in exchange mgr */ struct se_cmd se_cmd; /* Local TCM I/O descriptor */ struct fc_frame *req_frame; - unsigned char *cdb; /* pointer to CDB inside frame */ u32 write_data_len; /* data received on writes */ struct work_struct work; /* Local sense buffer */ @@ -143,11 +141,8 @@ extern struct target_fabric_configfs *ft_configfs; void ft_sess_put(struct ft_sess *); int ft_sess_shutdown(struct se_session *); void ft_sess_close(struct se_session *); -void ft_sess_stop(struct se_session *, int, int); -int ft_sess_logged_in(struct se_session *); u32 ft_sess_get_index(struct se_session *); u32 ft_sess_get_port_name(struct se_session *, unsigned char *, u32); -void ft_sess_set_erl0(struct se_session *); void ft_lport_add(struct fc_lport *, void *); void ft_lport_del(struct fc_lport *, void *); @@ -165,7 +160,6 @@ int ft_write_pending_status(struct se_cmd *); u32 ft_get_task_tag(struct se_cmd *); int ft_get_cmd_state(struct se_cmd *); int ft_queue_tm_resp(struct se_cmd *); -int ft_is_state_remove(struct se_cmd *); /* * other internal functions. diff --git a/drivers/target/tcm_fc/tfc_cmd.c b/drivers/target/tcm_fc/tfc_cmd.c index 9e7e26c74c79..62dec9715ce5 100644 --- a/drivers/target/tcm_fc/tfc_cmd.c +++ b/drivers/target/tcm_fc/tfc_cmd.c @@ -59,9 +59,6 @@ void ft_dump_cmd(struct ft_cmd *cmd, const char *caller) se_cmd = &cmd->se_cmd; pr_debug("%s: cmd %p sess %p seq %p se_cmd %p\n", caller, cmd, cmd->sess, cmd->seq, se_cmd); - pr_debug("%s: cmd %p cdb %p\n", - caller, cmd, cmd->cdb); - pr_debug("%s: cmd %p lun %d\n", caller, cmd, cmd->lun); pr_debug("%s: cmd %p data_nents %u len %u se_cmd_flags <0x%x>\n", caller, cmd, se_cmd->t_data_nents, @@ -81,8 +78,6 @@ void ft_dump_cmd(struct ft_cmd *cmd, const char *caller) caller, cmd, ep->sid, ep->did, ep->oxid, ep->rxid, sp->id, ep->esb_stat); } - print_hex_dump(KERN_INFO, "ft_dump_cmd ", DUMP_PREFIX_NONE, - 16, 4, cmd->cdb, MAX_COMMAND_SIZE, 0); } static void ft_free_cmd(struct ft_cmd *cmd) @@ -249,11 +244,6 @@ int ft_get_cmd_state(struct se_cmd *se_cmd) return 0; } -int ft_is_state_remove(struct se_cmd *se_cmd) -{ - return 0; /* XXX TBD */ -} - /* * FC sequence response handler for follow-on sequences (data) and aborts. */ @@ -325,10 +315,12 @@ static void ft_send_resp_status(struct fc_lport *lport, fc_fill_reply_hdr(fp, rx_fp, FC_RCTL_DD_CMD_STATUS, 0); sp = fr_seq(fp); - if (sp) + if (sp) { lport->tt.seq_send(lport, sp, fp); - else + lport->tt.exch_done(sp); + } else { lport->tt.frame_send(lport, fp); + } } /* @@ -358,16 +350,10 @@ static void ft_send_resp_code_and_free(struct ft_cmd *cmd, */ static void ft_send_tm(struct ft_cmd *cmd) { - struct se_tmr_req *tmr; struct fcp_cmnd *fcp; - struct ft_sess *sess; + int rc; u8 tm_func; - transport_init_se_cmd(&cmd->se_cmd, &ft_configfs->tf_ops, - cmd->sess->se_sess, 0, DMA_NONE, 0, - &cmd->ft_sense_buffer[0]); - target_get_sess_cmd(cmd->sess->se_sess, &cmd->se_cmd, false); - fcp = fc_frame_payload_get(cmd->req_frame, sizeof(*fcp)); switch (fcp->fc_tm_flags) { @@ -396,44 +382,12 @@ static void ft_send_tm(struct ft_cmd *cmd) return; } - pr_debug("alloc tm cmd fn %d\n", tm_func); - tmr = core_tmr_alloc_req(&cmd->se_cmd, cmd, tm_func, GFP_KERNEL); - if (!tmr) { - pr_debug("alloc failed\n"); + /* FIXME: Add referenced task tag for ABORT_TASK */ + rc = target_submit_tmr(&cmd->se_cmd, cmd->sess->se_sess, + &cmd->ft_sense_buffer[0], scsilun_to_int(&fcp->fc_lun), + cmd, tm_func, GFP_KERNEL, 0, 0); + if (rc < 0) ft_send_resp_code_and_free(cmd, FCP_TMF_FAILED); - return; - } - cmd->se_cmd.se_tmr_req = tmr; - - switch (fcp->fc_tm_flags) { - case FCP_TMF_LUN_RESET: - cmd->lun = scsilun_to_int((struct scsi_lun *)fcp->fc_lun); - if (transport_lookup_tmr_lun(&cmd->se_cmd, cmd->lun) < 0) { - /* - * Make sure to clean up newly allocated TMR request - * since "unable to handle TMR request because failed - * to get to LUN" - */ - pr_debug("Failed to get LUN for TMR func %d, " - "se_cmd %p, unpacked_lun %d\n", - tm_func, &cmd->se_cmd, cmd->lun); - ft_dump_cmd(cmd, __func__); - sess = cmd->sess; - transport_send_check_condition_and_sense(&cmd->se_cmd, - cmd->se_cmd.scsi_sense_reason, 0); - ft_sess_put(sess); - return; - } - break; - case FCP_TMF_TGT_RESET: - case FCP_TMF_CLR_TASK_SET: - case FCP_TMF_ABT_TASK_SET: - case FCP_TMF_CLR_ACA: - break; - default: - return; - } - transport_generic_handle_tmr(&cmd->se_cmd); } /* @@ -538,7 +492,6 @@ static void ft_send_work(struct work_struct *work) struct fc_frame_header *fh = fc_frame_header_get(cmd->req_frame); struct fcp_cmnd *fcp; int data_dir = 0; - u32 data_len; int task_attr; fcp = fc_frame_payload_get(cmd->req_frame, sizeof(*fcp)); @@ -548,47 +501,6 @@ static void ft_send_work(struct work_struct *work) if (fcp->fc_flags & FCP_CFL_LEN_MASK) goto err; /* not handling longer CDBs yet */ - if (fcp->fc_tm_flags) { - task_attr = FCP_PTA_SIMPLE; - data_dir = DMA_NONE; - data_len = 0; - } else { - switch (fcp->fc_flags & (FCP_CFL_RDDATA | FCP_CFL_WRDATA)) { - case 0: - data_dir = DMA_NONE; - break; - case FCP_CFL_RDDATA: - data_dir = DMA_FROM_DEVICE; - break; - case FCP_CFL_WRDATA: - data_dir = DMA_TO_DEVICE; - break; - case FCP_CFL_WRDATA | FCP_CFL_RDDATA: - goto err; /* TBD not supported by tcm_fc yet */ - } - /* - * Locate the SAM Task Attr from fc_pri_ta - */ - switch (fcp->fc_pri_ta & FCP_PTA_MASK) { - case FCP_PTA_HEADQ: - task_attr = MSG_HEAD_TAG; - break; - case FCP_PTA_ORDERED: - task_attr = MSG_ORDERED_TAG; - break; - case FCP_PTA_ACA: - task_attr = MSG_ACA_TAG; - break; - case FCP_PTA_SIMPLE: /* Fallthrough */ - default: - task_attr = MSG_SIMPLE_TAG; - } - - - task_attr = fcp->fc_pri_ta & FCP_PTA_MASK; - data_len = ntohl(fcp->fc_dl); - cmd->cdb = fcp->fc_cdb; - } /* * Check for FCP task management flags */ @@ -596,15 +508,46 @@ static void ft_send_work(struct work_struct *work) ft_send_tm(cmd); return; } + + switch (fcp->fc_flags & (FCP_CFL_RDDATA | FCP_CFL_WRDATA)) { + case 0: + data_dir = DMA_NONE; + break; + case FCP_CFL_RDDATA: + data_dir = DMA_FROM_DEVICE; + break; + case FCP_CFL_WRDATA: + data_dir = DMA_TO_DEVICE; + break; + case FCP_CFL_WRDATA | FCP_CFL_RDDATA: + goto err; /* TBD not supported by tcm_fc yet */ + } + /* + * Locate the SAM Task Attr from fc_pri_ta + */ + switch (fcp->fc_pri_ta & FCP_PTA_MASK) { + case FCP_PTA_HEADQ: + task_attr = MSG_HEAD_TAG; + break; + case FCP_PTA_ORDERED: + task_attr = MSG_ORDERED_TAG; + break; + case FCP_PTA_ACA: + task_attr = MSG_ACA_TAG; + break; + case FCP_PTA_SIMPLE: /* Fallthrough */ + default: + task_attr = MSG_SIMPLE_TAG; + } + fc_seq_exch(cmd->seq)->lp->tt.seq_set_resp(cmd->seq, ft_recv_seq, cmd); - cmd->lun = scsilun_to_int((struct scsi_lun *)fcp->fc_lun); /* * Use a single se_cmd->cmd_kref as we expect to release se_cmd * directly from ft_check_stop_free callback in response path. */ - target_submit_cmd(&cmd->se_cmd, cmd->sess->se_sess, cmd->cdb, - &cmd->ft_sense_buffer[0], cmd->lun, data_len, - task_attr, data_dir, 0); + target_submit_cmd(&cmd->se_cmd, cmd->sess->se_sess, fcp->fc_cdb, + &cmd->ft_sense_buffer[0], scsilun_to_int(&fcp->fc_lun), + ntohl(fcp->fc_dl), task_attr, data_dir, 0); pr_debug("r_ctl %x alloc target_submit_cmd\n", fh->fh_r_ctl); return; diff --git a/drivers/target/tcm_fc/tfc_conf.c b/drivers/target/tcm_fc/tfc_conf.c index 73852fbc857b..f357039349ba 100644 --- a/drivers/target/tcm_fc/tfc_conf.c +++ b/drivers/target/tcm_fc/tfc_conf.c @@ -529,9 +529,6 @@ static struct target_core_fabric_ops ft_fabric_ops = { .release_cmd = ft_release_cmd, .shutdown_session = ft_sess_shutdown, .close_session = ft_sess_close, - .stop_session = ft_sess_stop, - .fall_back_to_erl0 = ft_sess_set_erl0, - .sess_logged_in = ft_sess_logged_in, .sess_get_index = ft_sess_get_index, .sess_get_initiator_sid = NULL, .write_pending = ft_write_pending, @@ -544,7 +541,6 @@ static struct target_core_fabric_ops ft_fabric_ops = { .queue_tm_rsp = ft_queue_tm_resp, .get_fabric_sense_len = ft_get_fabric_sense_len, .set_fabric_sense_len = ft_set_fabric_sense_len, - .is_state_remove = ft_is_state_remove, /* * Setup function pointers for generic logic in * target_core_fabric_configfs.c diff --git a/drivers/target/tcm_fc/tfc_sess.c b/drivers/target/tcm_fc/tfc_sess.c index eff512b5a2a0..cb99da920068 100644 --- a/drivers/target/tcm_fc/tfc_sess.c +++ b/drivers/target/tcm_fc/tfc_sess.c @@ -309,11 +309,9 @@ int ft_sess_shutdown(struct se_session *se_sess) void ft_sess_close(struct se_session *se_sess) { struct ft_sess *sess = se_sess->fabric_sess_ptr; - struct fc_lport *lport; u32 port_id; mutex_lock(&ft_lport_lock); - lport = sess->tport->lport; port_id = sess->port_id; if (port_id == -1) { mutex_unlock(&ft_lport_lock); @@ -328,20 +326,6 @@ void ft_sess_close(struct se_session *se_sess) synchronize_rcu(); /* let transport deregister happen */ } -void ft_sess_stop(struct se_session *se_sess, int sess_sleep, int conn_sleep) -{ - struct ft_sess *sess = se_sess->fabric_sess_ptr; - - pr_debug("port_id %x\n", sess->port_id); -} - -int ft_sess_logged_in(struct se_session *se_sess) -{ - struct ft_sess *sess = se_sess->fabric_sess_ptr; - - return sess->port_id != -1; -} - u32 ft_sess_get_index(struct se_session *se_sess) { struct ft_sess *sess = se_sess->fabric_sess_ptr; @@ -357,11 +341,6 @@ u32 ft_sess_get_port_name(struct se_session *se_sess, return ft_format_wwn(buf, len, sess->port_name); } -void ft_sess_set_erl0(struct se_session *se_sess) -{ - /* XXX TBD called when out of memory */ -} - /* * libfc ops involving sessions. */ |