From 0dccb69d42a06d438c979c933a1657cb0b4ec4fb Mon Sep 17 00:00:00 2001 From: Andy Grover Date: Thu, 9 Feb 2012 06:42:33 +0000 Subject: [PATCH] tcm_fc: Simplify ft_send_work for tmr path Check fc_tm_flags early and call ft_send_tm() right away. Don't need to set local vars for tm case. data_len local var now unneeded, remove. Signed-off-by: Andy Grover Cc: Kiran Patil Signed-off-by: Nicholas Bellinger --- drivers/target/tcm_fc/tfc_cmd.c | 78 +++++++++++++++------------------ 1 file changed, 35 insertions(+), 43 deletions(-) diff --git a/drivers/target/tcm_fc/tfc_cmd.c b/drivers/target/tcm_fc/tfc_cmd.c index c5f5bb29a165..6b8d854cc71a 100644 --- a/drivers/target/tcm_fc/tfc_cmd.c +++ b/drivers/target/tcm_fc/tfc_cmd.c @@ -536,7 +536,6 @@ 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)); @@ -546,47 +545,6 @@ 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 */ @@ -594,6 +552,40 @@ 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; + } + + cmd->cdb = fcp->fc_cdb; + fc_seq_exch(cmd->seq)->lp->tt.seq_set_resp(cmd->seq, ft_recv_seq, cmd); /* * Use a single se_cmd->cmd_kref as we expect to release se_cmd @@ -601,7 +593,7 @@ static void ft_send_work(struct work_struct *work) */ target_submit_cmd(&cmd->se_cmd, cmd->sess->se_sess, cmd->cdb, &cmd->ft_sense_buffer[0], scsilun_to_int(&fcp->fc_lun), - data_len, task_attr, data_dir, 0); + ntohl(fcp->fc_dl), task_attr, data_dir, 0); pr_debug("r_ctl %x alloc target_submit_cmd\n", fh->fh_r_ctl); return; -- 2.20.1