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openSUSE:Leap:15.2:PowerPC
istgt
disk-support-0-len-read-and-write-CBDs.patch
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File disk-support-0-len-read-and-write-CBDs.patch of Package istgt
From 107c5c374636951b560d9e00447de2cbb51cbf4d Mon Sep 17 00:00:00 2001 From: David Disseldorp <ddiss@suse.de> Date: Tue, 26 Mar 2013 17:51:10 +0100 Subject: [PATCH 02/12] disk: support 0 len read and write CBDs --- src/istgt_lu_disk.c | 78 ++++++++++++++++++++++++++++------------------------- 1 file changed, 42 insertions(+), 36 deletions(-) diff --git src/istgt_lu_disk.c src/istgt_lu_disk.c index 78df581..9b58da3 100644 --- src/istgt_lu_disk.c +++ src/istgt_lu_disk.c @@ -6115,12 +6115,6 @@ istgt_lu_disk_execute(CONN_Ptr conn, ISTGT_LU_CMD_Ptr lu_cmd) } } - if (lu_cmd->R_bit == 0) { - ISTGT_ERRLOG("R_bit == 0\n"); - lu_cmd->status = ISTGT_SCSI_STATUS_CHECK_CONDITION; - return -1; - } - dpo = BGET8(&cdb[1], 4); fua = BGET8(&cdb[1], 3); fua_nv = BGET8(&cdb[1], 1); @@ -6129,6 +6123,13 @@ istgt_lu_disk_execute(CONN_Ptr conn, ISTGT_LU_CMD_Ptr lu_cmd) ISTGT_TRACELOG(ISTGT_TRACE_SCSI, "READ_10(lba %"PRIu64", len %u blocks)\n", lba, transfer_len); + + if ((lu_cmd->R_bit == 0) && (transfer_len > 0)) { + ISTGT_ERRLOG("R_bit == 0\n"); + lu_cmd->status = ISTGT_SCSI_STATUS_CHECK_CONDITION; + return -1; + } + rc = istgt_lu_disk_lbread(spec, conn, lu_cmd, lba, transfer_len); if (rc < 0) { ISTGT_ERRLOG("lu_disk_lbread() failed\n"); @@ -6151,12 +6152,6 @@ istgt_lu_disk_execute(CONN_Ptr conn, ISTGT_LU_CMD_Ptr lu_cmd) } } - if (lu_cmd->R_bit == 0) { - ISTGT_ERRLOG("R_bit == 0\n"); - lu_cmd->status = ISTGT_SCSI_STATUS_CHECK_CONDITION; - return -1; - } - dpo = BGET8(&cdb[1], 4); fua = BGET8(&cdb[1], 3); fua_nv = BGET8(&cdb[1], 1); @@ -6165,6 +6160,13 @@ istgt_lu_disk_execute(CONN_Ptr conn, ISTGT_LU_CMD_Ptr lu_cmd) ISTGT_TRACELOG(ISTGT_TRACE_SCSI, "READ_12(lba %"PRIu64", len %u blocks)\n", lba, transfer_len); + + if ((lu_cmd->R_bit == 0) && (transfer_len > 0)) { + ISTGT_ERRLOG("R_bit == 0\n"); + lu_cmd->status = ISTGT_SCSI_STATUS_CHECK_CONDITION; + return -1; + } + rc = istgt_lu_disk_lbread(spec, conn, lu_cmd, lba, transfer_len); if (rc < 0) { ISTGT_ERRLOG("lu_disk_lbread() failed\n"); @@ -6187,12 +6189,6 @@ istgt_lu_disk_execute(CONN_Ptr conn, ISTGT_LU_CMD_Ptr lu_cmd) } } - if (lu_cmd->R_bit == 0) { - ISTGT_ERRLOG("R_bit == 0\n"); - lu_cmd->status = ISTGT_SCSI_STATUS_CHECK_CONDITION; - return -1; - } - dpo = BGET8(&cdb[1], 4); fua = BGET8(&cdb[1], 3); fua_nv = BGET8(&cdb[1], 1); @@ -6201,6 +6197,13 @@ istgt_lu_disk_execute(CONN_Ptr conn, ISTGT_LU_CMD_Ptr lu_cmd) ISTGT_TRACELOG(ISTGT_TRACE_SCSI, "READ_16(lba %"PRIu64", len %u blocks)\n", lba, transfer_len); + + if ((lu_cmd->R_bit == 0) && (transfer_len > 0)) { + ISTGT_ERRLOG("R_bit == 0\n"); + lu_cmd->status = ISTGT_SCSI_STATUS_CHECK_CONDITION; + return -1; + } + rc = istgt_lu_disk_lbread(spec, conn, lu_cmd, lba, transfer_len); if (rc < 0) { ISTGT_ERRLOG("lu_disk_lbread() failed\n"); @@ -6258,12 +6261,6 @@ istgt_lu_disk_execute(CONN_Ptr conn, ISTGT_LU_CMD_Ptr lu_cmd) } } - if (lu_cmd->W_bit == 0) { - ISTGT_ERRLOG("W_bit == 0\n"); - lu_cmd->status = ISTGT_SCSI_STATUS_CHECK_CONDITION; - return -1; - } - dpo = BGET8(&cdb[1], 4); fua = BGET8(&cdb[1], 3); fua_nv = BGET8(&cdb[1], 1); @@ -6272,6 +6269,13 @@ istgt_lu_disk_execute(CONN_Ptr conn, ISTGT_LU_CMD_Ptr lu_cmd) ISTGT_TRACELOG(ISTGT_TRACE_SCSI, "WRITE_10(lba %"PRIu64", len %u blocks)\n", lba, transfer_len); + + if ((lu_cmd->W_bit == 0) && (transfer_len > 0)) { + ISTGT_ERRLOG("W_bit == 0\n"); + lu_cmd->status = ISTGT_SCSI_STATUS_CHECK_CONDITION; + return -1; + } + rc = istgt_lu_disk_lbwrite(spec, conn, lu_cmd, lba, transfer_len); if (rc < 0) { ISTGT_ERRLOG("lu_disk_lbwrite() failed\n"); @@ -6295,12 +6299,6 @@ istgt_lu_disk_execute(CONN_Ptr conn, ISTGT_LU_CMD_Ptr lu_cmd) } } - if (lu_cmd->W_bit == 0) { - ISTGT_ERRLOG("W_bit == 0\n"); - lu_cmd->status = ISTGT_SCSI_STATUS_CHECK_CONDITION; - return -1; - } - dpo = BGET8(&cdb[1], 4); fua = BGET8(&cdb[1], 3); fua_nv = BGET8(&cdb[1], 1); @@ -6309,6 +6307,13 @@ istgt_lu_disk_execute(CONN_Ptr conn, ISTGT_LU_CMD_Ptr lu_cmd) ISTGT_TRACELOG(ISTGT_TRACE_SCSI, "WRITE_12(lba %"PRIu64", len %u blocks)\n", lba, transfer_len); + + if ((lu_cmd->W_bit == 0) && (transfer_len > 0)) { + ISTGT_ERRLOG("W_bit == 0\n"); + lu_cmd->status = ISTGT_SCSI_STATUS_CHECK_CONDITION; + return -1; + } + rc = istgt_lu_disk_lbwrite(spec, conn, lu_cmd, lba, transfer_len); if (rc < 0) { ISTGT_ERRLOG("lu_disk_lbwrite() failed\n"); @@ -6332,12 +6337,6 @@ istgt_lu_disk_execute(CONN_Ptr conn, ISTGT_LU_CMD_Ptr lu_cmd) } } - if (lu_cmd->W_bit == 0) { - ISTGT_ERRLOG("W_bit == 0\n"); - lu_cmd->status = ISTGT_SCSI_STATUS_CHECK_CONDITION; - return -1; - } - dpo = BGET8(&cdb[1], 4); fua = BGET8(&cdb[1], 3); fua_nv = BGET8(&cdb[1], 1); @@ -6346,6 +6345,13 @@ istgt_lu_disk_execute(CONN_Ptr conn, ISTGT_LU_CMD_Ptr lu_cmd) ISTGT_TRACELOG(ISTGT_TRACE_SCSI, "WRITE_16(lba %"PRIu64", len %u blocks)\n", lba, transfer_len); + + if ((lu_cmd->W_bit == 0) && (transfer_len > 0)) { + ISTGT_ERRLOG("W_bit == 0\n"); + lu_cmd->status = ISTGT_SCSI_STATUS_CHECK_CONDITION; + return -1; + } + rc = istgt_lu_disk_lbwrite(spec, conn, lu_cmd, lba, transfer_len); if (rc < 0) { ISTGT_ERRLOG("lu_disk_lbwrite() failed\n"); -- 2.1.2
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