diff options
author | Andy Grover <agrover@redhat.com> | 2012-04-04 00:51:24 +0200 |
---|---|---|
committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2012-04-15 02:40:38 +0200 |
commit | ebf1d95ca297a06fe760177b614646dcec06abef (patch) | |
tree | 6ee7e2c5934ff0e7cd7e30b1e02590d0b4145406 /drivers/target/iscsi | |
parent | target/iscsi: Move init_se_cmd closer to lookup_cmd_lun (diff) | |
download | linux-ebf1d95ca297a06fe760177b614646dcec06abef.tar.xz linux-ebf1d95ca297a06fe760177b614646dcec06abef.zip |
target/iscsi: Eliminate iscsi_cmd.data_length
Redundant, just use iscsi_cmd->se_cmd.data_length once se_cmd is
initialized, or hdr->data_length before then.
Signed-off-by: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/target/iscsi')
-rw-r--r-- | drivers/target/iscsi/iscsi_target.c | 25 | ||||
-rw-r--r-- | drivers/target/iscsi/iscsi_target_core.h | 2 | ||||
-rw-r--r-- | drivers/target/iscsi/iscsi_target_datain_values.c | 18 | ||||
-rw-r--r-- | drivers/target/iscsi/iscsi_target_erl0.c | 24 | ||||
-rw-r--r-- | drivers/target/iscsi/iscsi_target_erl1.c | 8 | ||||
-rw-r--r-- | drivers/target/iscsi/iscsi_target_seq_pdu_list.c | 42 | ||||
-rw-r--r-- | drivers/target/iscsi/iscsi_target_tmr.c | 4 | ||||
-rw-r--r-- | drivers/target/iscsi/iscsi_target_util.c | 4 |
8 files changed, 60 insertions, 67 deletions
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c index 1b51a3ed17f5..a29a1bb279d5 100644 --- a/drivers/target/iscsi/iscsi_target.c +++ b/drivers/target/iscsi/iscsi_target.c @@ -968,7 +968,6 @@ done: buf, conn); cmd->data_direction = data_direction; - cmd->data_length = hdr->data_length; iscsi_task_attr = hdr->flags & ISCSI_FLAG_CMD_ATTR_MASK; /* * Figure out the SAM Task Attribute for the incoming SCSI CDB @@ -1026,7 +1025,7 @@ done: * Initialize struct se_cmd descriptor from target_core_mod infrastructure */ transport_init_se_cmd(&cmd->se_cmd, &lio_target_fabric_configfs->tf_ops, - conn->sess->se_sess, cmd->data_length, cmd->data_direction, + conn->sess->se_sess, hdr->data_length, cmd->data_direction, sam_task_attr, &cmd->sense_buffer[0]); pr_debug("Got SCSI Command, ITT: 0x%08x, CmdSN: 0x%08x," @@ -1061,8 +1060,6 @@ done: */ send_check_condition = 1; } else { - cmd->data_length = cmd->se_cmd.data_length; - if (iscsit_decide_list_to_build(cmd, payload_length) < 0) return iscsit_add_reject_from_cmd( ISCSI_REASON_BOOKMARK_NO_RESOURCES, @@ -1329,10 +1326,10 @@ static int iscsit_handle_data_out(struct iscsi_conn *conn, unsigned char *buf) se_cmd = &cmd->se_cmd; iscsit_mod_dataout_timer(cmd); - if ((hdr->offset + payload_length) > cmd->data_length) { + if ((hdr->offset + payload_length) > cmd->se_cmd.data_length) { pr_err("DataOut Offset: %u, Length %u greater than" " iSCSI Command EDTL %u, protocol error.\n", - hdr->offset, payload_length, cmd->data_length); + hdr->offset, payload_length, cmd->se_cmd.data_length); return iscsit_add_reject_from_cmd(ISCSI_REASON_BOOKMARK_INVALID, 1, 0, buf, cmd); } @@ -2427,7 +2424,7 @@ static int iscsit_handle_immediate_data( cmd->write_data_done += length; - if (cmd->write_data_done == cmd->data_length) { + if (cmd->write_data_done == cmd->se_cmd.data_length) { spin_lock_bh(&cmd->istate_lock); cmd->cmd_flags |= ICF_GOT_LAST_DATAOUT; cmd->i_state = ISTATE_RECEIVED_LAST_DATAOUT; @@ -2559,11 +2556,11 @@ static int iscsit_send_data_in( /* * Be paranoid and double check the logic for now. */ - if ((datain.offset + datain.length) > cmd->data_length) { + if ((datain.offset + datain.length) > cmd->se_cmd.data_length) { pr_err("Command ITT: 0x%08x, datain.offset: %u and" " datain.length: %u exceeds cmd->data_length: %u\n", cmd->init_task_tag, datain.offset, datain.length, - cmd->data_length); + cmd->se_cmd.data_length); return -1; } @@ -3071,8 +3068,8 @@ int iscsit_build_r2ts_for_cmd( conn->sess->sess_ops->MaxBurstLength - cmd->next_burst_len; - if (new_data_end > cmd->data_length) - xfer_len = cmd->data_length - offset; + if (new_data_end > cmd->se_cmd.data_length) + xfer_len = cmd->se_cmd.data_length - offset; else xfer_len = conn->sess->sess_ops->MaxBurstLength - @@ -3081,14 +3078,14 @@ int iscsit_build_r2ts_for_cmd( int new_data_end = offset + conn->sess->sess_ops->MaxBurstLength; - if (new_data_end > cmd->data_length) - xfer_len = cmd->data_length - offset; + if (new_data_end > cmd->se_cmd.data_length) + xfer_len = cmd->se_cmd.data_length - offset; else xfer_len = conn->sess->sess_ops->MaxBurstLength; } cmd->r2t_offset += xfer_len; - if (cmd->r2t_offset == cmd->data_length) + if (cmd->r2t_offset == cmd->se_cmd.data_length) cmd->cmd_flags |= ICF_SENT_LAST_R2T; } else { struct iscsi_seq *seq; diff --git a/drivers/target/iscsi/iscsi_target_core.h b/drivers/target/iscsi/iscsi_target_core.h index 1a9a64ab4feb..94c736e3a640 100644 --- a/drivers/target/iscsi/iscsi_target_core.h +++ b/drivers/target/iscsi/iscsi_target_core.h @@ -380,8 +380,6 @@ struct iscsi_cmd { u32 buf_ptr_size; /* Used to store DataDigest */ u32 data_crc; - /* Total size in bytes associated with command */ - u32 data_length; /* Counter for MaxOutstandingR2T */ u32 outstanding_r2ts; /* Next R2T Offset when DataSequenceInOrder=Yes */ diff --git a/drivers/target/iscsi/iscsi_target_datain_values.c b/drivers/target/iscsi/iscsi_target_datain_values.c index c19ca42eac67..848fee768948 100644 --- a/drivers/target/iscsi/iscsi_target_datain_values.c +++ b/drivers/target/iscsi/iscsi_target_datain_values.c @@ -110,7 +110,7 @@ static struct iscsi_datain_req *iscsit_set_datain_values_yes_and_yes( read_data_done = (!dr->recovery) ? cmd->read_data_done : dr->read_data_done; - read_data_left = (cmd->data_length - read_data_done); + read_data_left = (cmd->se_cmd.data_length - read_data_done); if (!read_data_left) { pr_err("ITT: 0x%08x read_data_left is zero!\n", cmd->init_task_tag); @@ -209,7 +209,7 @@ static struct iscsi_datain_req *iscsit_set_datain_values_no_and_yes( seq_send_order = (!dr->recovery) ? cmd->seq_send_order : dr->seq_send_order; - read_data_left = (cmd->data_length - read_data_done); + read_data_left = (cmd->se_cmd.data_length - read_data_done); if (!read_data_left) { pr_err("ITT: 0x%08x read_data_left is zero!\n", cmd->init_task_tag); @@ -228,8 +228,8 @@ static struct iscsi_datain_req *iscsit_set_datain_values_no_and_yes( offset = (seq->offset + seq->next_burst_len); if ((offset + conn->conn_ops->MaxRecvDataSegmentLength) >= - cmd->data_length) { - datain->length = (cmd->data_length - offset); + cmd->se_cmd.data_length) { + datain->length = (cmd->se_cmd.data_length - offset); datain->offset = offset; datain->flags |= ISCSI_FLAG_CMD_FINAL; @@ -261,7 +261,7 @@ static struct iscsi_datain_req *iscsit_set_datain_values_no_and_yes( } } - if ((read_data_done + datain->length) == cmd->data_length) + if ((read_data_done + datain->length) == cmd->se_cmd.data_length) datain->flags |= ISCSI_FLAG_DATA_STATUS; datain->data_sn = (!dr->recovery) ? cmd->data_sn++ : dr->data_sn++; @@ -330,7 +330,7 @@ static struct iscsi_datain_req *iscsit_set_datain_values_yes_and_no( read_data_done = (!dr->recovery) ? cmd->read_data_done : dr->read_data_done; - read_data_left = (cmd->data_length - read_data_done); + read_data_left = (cmd->se_cmd.data_length - read_data_done); if (!read_data_left) { pr_err("ITT: 0x%08x read_data_left is zero!\n", cmd->init_task_tag); @@ -341,7 +341,7 @@ static struct iscsi_datain_req *iscsit_set_datain_values_yes_and_no( if (!pdu) return dr; - if ((read_data_done + pdu->length) == cmd->data_length) { + if ((read_data_done + pdu->length) == cmd->se_cmd.data_length) { pdu->flags |= (ISCSI_FLAG_CMD_FINAL | ISCSI_FLAG_DATA_STATUS); if (conn->sess->sess_ops->ErrorRecoveryLevel > 0) pdu->flags |= ISCSI_FLAG_DATA_ACK; @@ -430,7 +430,7 @@ static struct iscsi_datain_req *iscsit_set_datain_values_no_and_no( seq_send_order = (!dr->recovery) ? cmd->seq_send_order : dr->seq_send_order; - read_data_left = (cmd->data_length - read_data_done); + read_data_left = (cmd->se_cmd.data_length - read_data_done); if (!read_data_left) { pr_err("ITT: 0x%08x read_data_left is zero!\n", cmd->init_task_tag); @@ -460,7 +460,7 @@ static struct iscsi_datain_req *iscsit_set_datain_values_no_and_no( } else seq->next_burst_len += pdu->length; - if ((read_data_done + pdu->length) == cmd->data_length) + if ((read_data_done + pdu->length) == cmd->se_cmd.data_length) pdu->flags |= ISCSI_FLAG_DATA_STATUS; pdu->data_sn = (!dr->recovery) ? cmd->data_sn++ : dr->data_sn++; diff --git a/drivers/target/iscsi/iscsi_target_erl0.c b/drivers/target/iscsi/iscsi_target_erl0.c index dd11520eb8b4..1a02016ecdab 100644 --- a/drivers/target/iscsi/iscsi_target_erl0.c +++ b/drivers/target/iscsi/iscsi_target_erl0.c @@ -48,9 +48,9 @@ void iscsit_set_dataout_sequence_values( if (cmd->unsolicited_data) { cmd->seq_start_offset = cmd->write_data_done; cmd->seq_end_offset = (cmd->write_data_done + - (cmd->data_length > + (cmd->se_cmd.data_length > conn->sess->sess_ops->FirstBurstLength) ? - conn->sess->sess_ops->FirstBurstLength : cmd->data_length); + conn->sess->sess_ops->FirstBurstLength : cmd->se_cmd.data_length); return; } @@ -59,15 +59,15 @@ void iscsit_set_dataout_sequence_values( if (!cmd->seq_start_offset && !cmd->seq_end_offset) { cmd->seq_start_offset = cmd->write_data_done; - cmd->seq_end_offset = (cmd->data_length > + cmd->seq_end_offset = (cmd->se_cmd.data_length > conn->sess->sess_ops->MaxBurstLength) ? (cmd->write_data_done + - conn->sess->sess_ops->MaxBurstLength) : cmd->data_length; + conn->sess->sess_ops->MaxBurstLength) : cmd->se_cmd.data_length; } else { cmd->seq_start_offset = cmd->seq_end_offset; cmd->seq_end_offset = ((cmd->seq_end_offset + conn->sess->sess_ops->MaxBurstLength) >= - cmd->data_length) ? cmd->data_length : + cmd->se_cmd.data_length) ? cmd->se_cmd.data_length : (cmd->seq_end_offset + conn->sess->sess_ops->MaxBurstLength); } @@ -182,13 +182,13 @@ static int iscsit_dataout_check_unsolicited_sequence( if (!conn->sess->sess_ops->DataPDUInOrder) goto out; - if ((first_burst_len != cmd->data_length) && + if ((first_burst_len != cmd->se_cmd.data_length) && (first_burst_len != conn->sess->sess_ops->FirstBurstLength)) { pr_err("Unsolicited non-immediate data" " received %u does not equal FirstBurstLength: %u, and" " does not equal ExpXferLen %u.\n", first_burst_len, conn->sess->sess_ops->FirstBurstLength, - cmd->data_length); + cmd->se_cmd.data_length); transport_send_check_condition_and_sense(&cmd->se_cmd, TCM_INCORRECT_AMOUNT_OF_DATA, 0); return DATAOUT_CANNOT_RECOVER; @@ -201,10 +201,10 @@ static int iscsit_dataout_check_unsolicited_sequence( conn->sess->sess_ops->FirstBurstLength); return DATAOUT_CANNOT_RECOVER; } - if (first_burst_len == cmd->data_length) { + if (first_burst_len == cmd->se_cmd.data_length) { pr_err("Command ITT: 0x%08x reached" " ExpXferLen: %u, but ISCSI_FLAG_CMD_FINAL is not set. protocol" - " error.\n", cmd->init_task_tag, cmd->data_length); + " error.\n", cmd->init_task_tag, cmd->se_cmd.data_length); return DATAOUT_CANNOT_RECOVER; } } @@ -294,7 +294,7 @@ static int iscsit_dataout_check_sequence( if ((next_burst_len < conn->sess->sess_ops->MaxBurstLength) && ((cmd->write_data_done + payload_length) < - cmd->data_length)) { + cmd->se_cmd.data_length)) { pr_err("Command ITT: 0x%08x set ISCSI_FLAG_CMD_FINAL" " before end of DataOUT sequence, protocol" " error.\n", cmd->init_task_tag); @@ -319,7 +319,7 @@ static int iscsit_dataout_check_sequence( return DATAOUT_CANNOT_RECOVER; } if ((cmd->write_data_done + payload_length) == - cmd->data_length) { + cmd->se_cmd.data_length) { pr_err("Command ITT: 0x%08x reached" " last DataOUT PDU in sequence but ISCSI_FLAG_" "CMD_FINAL is not set, protocol error.\n", @@ -640,7 +640,7 @@ static int iscsit_dataout_post_crc_passed( cmd->write_data_done += payload_length; - if (cmd->write_data_done == cmd->data_length) + if (cmd->write_data_done == cmd->se_cmd.data_length) return DATAOUT_SEND_TO_TRANSPORT; else if (send_r2t) return DATAOUT_SEND_R2T; diff --git a/drivers/target/iscsi/iscsi_target_erl1.c b/drivers/target/iscsi/iscsi_target_erl1.c index 6deb8495d5f2..ecdd46deedda 100644 --- a/drivers/target/iscsi/iscsi_target_erl1.c +++ b/drivers/target/iscsi/iscsi_target_erl1.c @@ -1116,8 +1116,8 @@ static int iscsit_set_dataout_timeout_values( if (cmd->unsolicited_data) { *offset = 0; *length = (conn->sess->sess_ops->FirstBurstLength > - cmd->data_length) ? - cmd->data_length : + cmd->se_cmd.data_length) ? + cmd->se_cmd.data_length : conn->sess->sess_ops->FirstBurstLength; return 0; } @@ -1188,8 +1188,8 @@ static void iscsit_handle_dataout_timeout(unsigned long data) if (conn->sess->sess_ops->DataPDUInOrder) { pdu_offset = cmd->write_data_done; if ((pdu_offset + (conn->sess->sess_ops->MaxBurstLength - - cmd->next_burst_len)) > cmd->data_length) - pdu_length = (cmd->data_length - + cmd->next_burst_len)) > cmd->se_cmd.data_length) + pdu_length = (cmd->se_cmd.data_length - cmd->write_data_done); else pdu_length = (conn->sess->sess_ops->MaxBurstLength - diff --git a/drivers/target/iscsi/iscsi_target_seq_pdu_list.c b/drivers/target/iscsi/iscsi_target_seq_pdu_list.c index c69c7577ad14..d98276581a19 100644 --- a/drivers/target/iscsi/iscsi_target_seq_pdu_list.c +++ b/drivers/target/iscsi/iscsi_target_seq_pdu_list.c @@ -226,11 +226,10 @@ static void iscsit_determine_counts_for_list( if ((bl->type == PDULIST_UNSOLICITED) || (bl->type == PDULIST_IMMEDIATE_AND_UNSOLICITED)) - unsolicited_data_length = (cmd->data_length > - conn->sess->sess_ops->FirstBurstLength) ? - conn->sess->sess_ops->FirstBurstLength : cmd->data_length; + unsolicited_data_length = min(cmd->se_cmd.data_length, + conn->sess->sess_ops->FirstBurstLength); - while (offset < cmd->data_length) { + while (offset < cmd->se_cmd.data_length) { *pdu_count += 1; if (check_immediate) { @@ -244,10 +243,10 @@ static void iscsit_determine_counts_for_list( } if (unsolicited_data_length > 0) { if ((offset + conn->conn_ops->MaxRecvDataSegmentLength) - >= cmd->data_length) { + >= cmd->se_cmd.data_length) { unsolicited_data_length -= - (cmd->data_length - offset); - offset += (cmd->data_length - offset); + (cmd->se_cmd.data_length - offset); + offset += (cmd->se_cmd.data_length - offset); continue; } if ((offset + conn->conn_ops->MaxRecvDataSegmentLength) @@ -268,8 +267,8 @@ static void iscsit_determine_counts_for_list( continue; } if ((offset + conn->conn_ops->MaxRecvDataSegmentLength) >= - cmd->data_length) { - offset += (cmd->data_length - offset); + cmd->se_cmd.data_length) { + offset += (cmd->se_cmd.data_length - offset); continue; } if ((burstlength + conn->conn_ops->MaxRecvDataSegmentLength) >= @@ -311,11 +310,10 @@ static int iscsit_build_pdu_and_seq_list( if ((bl->type == PDULIST_UNSOLICITED) || (bl->type == PDULIST_IMMEDIATE_AND_UNSOLICITED)) - unsolicited_data_length = (cmd->data_length > - conn->sess->sess_ops->FirstBurstLength) ? - conn->sess->sess_ops->FirstBurstLength : cmd->data_length; + unsolicited_data_length = min(cmd->se_cmd.data_length, + conn->sess->sess_ops->FirstBurstLength); - while (offset < cmd->data_length) { + while (offset < cmd->se_cmd.data_length) { pdu_count++; if (!datapduinorder) { pdu[i].offset = offset; @@ -351,21 +349,21 @@ static int iscsit_build_pdu_and_seq_list( if (unsolicited_data_length > 0) { if ((offset + conn->conn_ops->MaxRecvDataSegmentLength) >= - cmd->data_length) { + cmd->se_cmd.data_length) { if (!datapduinorder) { pdu[i].type = PDUTYPE_UNSOLICITED; pdu[i].length = - (cmd->data_length - offset); + (cmd->se_cmd.data_length - offset); } if (!datasequenceinorder) { seq[seq_no].type = SEQTYPE_UNSOLICITED; seq[seq_no].pdu_count = pdu_count; seq[seq_no].xfer_len = (burstlength + - (cmd->data_length - offset)); + (cmd->se_cmd.data_length - offset)); } unsolicited_data_length -= - (cmd->data_length - offset); - offset += (cmd->data_length - offset); + (cmd->se_cmd.data_length - offset); + offset += (cmd->se_cmd.data_length - offset); continue; } if ((offset + @@ -407,18 +405,18 @@ static int iscsit_build_pdu_and_seq_list( continue; } if ((offset + conn->conn_ops->MaxRecvDataSegmentLength) >= - cmd->data_length) { + cmd->se_cmd.data_length) { if (!datapduinorder) { pdu[i].type = PDUTYPE_NORMAL; - pdu[i].length = (cmd->data_length - offset); + pdu[i].length = (cmd->se_cmd.data_length - offset); } if (!datasequenceinorder) { seq[seq_no].type = SEQTYPE_NORMAL; seq[seq_no].pdu_count = pdu_count; seq[seq_no].xfer_len = (burstlength + - (cmd->data_length - offset)); + (cmd->se_cmd.data_length - offset)); } - offset += (cmd->data_length - offset); + offset += (cmd->se_cmd.data_length - offset); continue; } if ((burstlength + conn->conn_ops->MaxRecvDataSegmentLength) >= diff --git a/drivers/target/iscsi/iscsi_target_tmr.c b/drivers/target/iscsi/iscsi_target_tmr.c index 3f025fa10467..f4e640b51fd1 100644 --- a/drivers/target/iscsi/iscsi_target_tmr.c +++ b/drivers/target/iscsi/iscsi_target_tmr.c @@ -269,9 +269,9 @@ static int iscsit_task_reassign_complete_write( offset = cmd->next_burst_len = cmd->write_data_done; if ((conn->sess->sess_ops->FirstBurstLength - offset) >= - cmd->data_length) { + cmd->se_cmd.data_length) { no_build_r2ts = 1; - length = (cmd->data_length - offset); + length = (cmd->se_cmd.data_length - offset); } else length = (conn->sess->sess_ops->FirstBurstLength - offset); diff --git a/drivers/target/iscsi/iscsi_target_util.c b/drivers/target/iscsi/iscsi_target_util.c index 66a6e9ba86fe..1f5a456f26b4 100644 --- a/drivers/target/iscsi/iscsi_target_util.c +++ b/drivers/target/iscsi/iscsi_target_util.c @@ -379,14 +379,14 @@ int iscsit_check_unsolicited_dataout(struct iscsi_cmd *cmd, unsigned char *buf) if (!(hdr->flags & ISCSI_FLAG_CMD_FINAL)) return 0; - if (((cmd->first_burst_len + payload_length) != cmd->data_length) && + if (((cmd->first_burst_len + payload_length) != cmd->se_cmd.data_length) && ((cmd->first_burst_len + payload_length) != conn->sess->sess_ops->FirstBurstLength)) { pr_err("Unsolicited non-immediate data received %u" " does not equal FirstBurstLength: %u, and does" " not equal ExpXferLen %u.\n", (cmd->first_burst_len + payload_length), - conn->sess->sess_ops->FirstBurstLength, cmd->data_length); + conn->sess->sess_ops->FirstBurstLength, cmd->se_cmd.data_length); transport_send_check_condition_and_sense(se_cmd, TCM_INCORRECT_AMOUNT_OF_DATA, 0); return -1; |