target: Use {get,put}_unaligned_be*() instead of open coding these functions
Introduce the function get_unaligned_be24(). Use {get,put}_unaligned_be*() where appropriate. This patch does not change any functionality. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Hannes Reinecke <hare@suse.com> Cc: Andy Grover <agrover@redhat.com> Cc: David Disseldorp <ddiss@suse.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
parent
f2b72d6a8e
commit
a85d667e58
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@ -205,8 +205,8 @@ target_emulate_report_target_port_groups(struct se_cmd *cmd)
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/*
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/*
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* TARGET PORT GROUP
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* TARGET PORT GROUP
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*/
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*/
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buf[off++] = ((tg_pt_gp->tg_pt_gp_id >> 8) & 0xff);
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put_unaligned_be16(tg_pt_gp->tg_pt_gp_id, &buf[off]);
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buf[off++] = (tg_pt_gp->tg_pt_gp_id & 0xff);
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off += 2;
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off++; /* Skip over Reserved */
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off++; /* Skip over Reserved */
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/*
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/*
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@ -235,8 +235,8 @@ target_emulate_report_target_port_groups(struct se_cmd *cmd)
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/*
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/*
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* Set RELATIVE TARGET PORT IDENTIFIER
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* Set RELATIVE TARGET PORT IDENTIFIER
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*/
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*/
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buf[off++] = ((lun->lun_rtpi >> 8) & 0xff);
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put_unaligned_be16(lun->lun_rtpi, &buf[off]);
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buf[off++] = (lun->lun_rtpi & 0xff);
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off += 2;
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rd_len += 4;
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rd_len += 4;
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}
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}
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spin_unlock(&tg_pt_gp->tg_pt_gp_lock);
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spin_unlock(&tg_pt_gp->tg_pt_gp_lock);
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@ -1091,19 +1091,19 @@ passthrough_parse_cdb(struct se_cmd *cmd,
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TRANSPORT_FLAG_PASSTHROUGH_PGR)) {
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TRANSPORT_FLAG_PASSTHROUGH_PGR)) {
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if (cdb[0] == PERSISTENT_RESERVE_IN) {
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if (cdb[0] == PERSISTENT_RESERVE_IN) {
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cmd->execute_cmd = target_scsi3_emulate_pr_in;
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cmd->execute_cmd = target_scsi3_emulate_pr_in;
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size = (cdb[7] << 8) + cdb[8];
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size = get_unaligned_be16(&cdb[7]);
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return target_cmd_size_check(cmd, size);
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return target_cmd_size_check(cmd, size);
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}
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}
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if (cdb[0] == PERSISTENT_RESERVE_OUT) {
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if (cdb[0] == PERSISTENT_RESERVE_OUT) {
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cmd->execute_cmd = target_scsi3_emulate_pr_out;
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cmd->execute_cmd = target_scsi3_emulate_pr_out;
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size = (cdb[7] << 8) + cdb[8];
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size = get_unaligned_be16(&cdb[7]);
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return target_cmd_size_check(cmd, size);
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return target_cmd_size_check(cmd, size);
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}
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}
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if (cdb[0] == RELEASE || cdb[0] == RELEASE_10) {
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if (cdb[0] == RELEASE || cdb[0] == RELEASE_10) {
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cmd->execute_cmd = target_scsi2_reservation_release;
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cmd->execute_cmd = target_scsi2_reservation_release;
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if (cdb[0] == RELEASE_10)
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if (cdb[0] == RELEASE_10)
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size = (cdb[7] << 8) | cdb[8];
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size = get_unaligned_be16(&cdb[7]);
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else
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else
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size = cmd->data_length;
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size = cmd->data_length;
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return target_cmd_size_check(cmd, size);
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return target_cmd_size_check(cmd, size);
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@ -1111,7 +1111,7 @@ passthrough_parse_cdb(struct se_cmd *cmd,
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if (cdb[0] == RESERVE || cdb[0] == RESERVE_10) {
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if (cdb[0] == RESERVE || cdb[0] == RESERVE_10) {
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cmd->execute_cmd = target_scsi2_reservation_reserve;
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cmd->execute_cmd = target_scsi2_reservation_reserve;
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if (cdb[0] == RESERVE_10)
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if (cdb[0] == RESERVE_10)
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size = (cdb[7] << 8) | cdb[8];
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size = get_unaligned_be16(&cdb[7]);
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else
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else
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size = cmd->data_length;
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size = cmd->data_length;
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return target_cmd_size_check(cmd, size);
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return target_cmd_size_check(cmd, size);
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@ -34,6 +34,7 @@
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#include <linux/ctype.h>
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#include <linux/ctype.h>
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#include <linux/spinlock.h>
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#include <linux/spinlock.h>
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#include <linux/export.h>
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#include <linux/export.h>
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#include <asm/unaligned.h>
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#include <scsi/scsi_proto.h>
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#include <scsi/scsi_proto.h>
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@ -216,8 +217,7 @@ static int iscsi_get_pr_transport_id(
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if (padding != 0)
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if (padding != 0)
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len += padding;
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len += padding;
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buf[2] = ((len >> 8) & 0xff);
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put_unaligned_be16(len, &buf[2]);
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buf[3] = (len & 0xff);
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/*
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/*
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* Increment value for total payload + header length for
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* Increment value for total payload + header length for
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* full status descriptor
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* full status descriptor
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@ -306,7 +306,7 @@ static char *iscsi_parse_pr_out_transport_id(
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*/
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*/
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if (out_tid_len) {
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if (out_tid_len) {
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/* The shift works thanks to integer promotion rules */
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/* The shift works thanks to integer promotion rules */
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add_len = (buf[2] << 8) | buf[3];
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add_len = get_unaligned_be16(&buf[2]);
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tid_len = strlen(&buf[4]);
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tid_len = strlen(&buf[4]);
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tid_len += 4; /* Add four bytes for iSCSI Transport ID header */
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tid_len += 4; /* Add four bytes for iSCSI Transport ID header */
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@ -1562,10 +1562,7 @@ core_scsi3_decode_spec_i_port(
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* first extract TransportID Parameter Data Length, and make sure
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* first extract TransportID Parameter Data Length, and make sure
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* the value matches up to the SCSI expected data transfer length.
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* the value matches up to the SCSI expected data transfer length.
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*/
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*/
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tpdl = (buf[24] & 0xff) << 24;
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tpdl = get_unaligned_be32(&buf[24]);
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tpdl |= (buf[25] & 0xff) << 16;
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tpdl |= (buf[26] & 0xff) << 8;
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tpdl |= buf[27] & 0xff;
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if ((tpdl + 28) != cmd->data_length) {
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if ((tpdl + 28) != cmd->data_length) {
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pr_err("SPC-3 PR: Illegal tpdl: %u + 28 byte header"
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pr_err("SPC-3 PR: Illegal tpdl: %u + 28 byte header"
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@ -3221,12 +3218,8 @@ core_scsi3_emulate_pro_register_and_move(struct se_cmd *cmd, u64 res_key,
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goto out_put_pr_reg;
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goto out_put_pr_reg;
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}
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}
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rtpi = (buf[18] & 0xff) << 8;
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rtpi = get_unaligned_be16(&buf[18]);
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rtpi |= buf[19] & 0xff;
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tid_len = get_unaligned_be32(&buf[20]);
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tid_len = (buf[20] & 0xff) << 24;
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tid_len |= (buf[21] & 0xff) << 16;
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tid_len |= (buf[22] & 0xff) << 8;
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tid_len |= buf[23] & 0xff;
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transport_kunmap_data_sg(cmd);
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transport_kunmap_data_sg(cmd);
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buf = NULL;
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buf = NULL;
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@ -3552,16 +3545,6 @@ out_put_pr_reg:
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return ret;
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return ret;
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}
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}
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static unsigned long long core_scsi3_extract_reservation_key(unsigned char *cdb)
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{
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unsigned int __v1, __v2;
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__v1 = (cdb[0] << 24) | (cdb[1] << 16) | (cdb[2] << 8) | cdb[3];
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__v2 = (cdb[4] << 24) | (cdb[5] << 16) | (cdb[6] << 8) | cdb[7];
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return ((unsigned long long)__v2) | (unsigned long long)__v1 << 32;
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}
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/*
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/*
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* See spc4r17 section 6.14 Table 170
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* See spc4r17 section 6.14 Table 170
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*/
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*/
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@ -3619,8 +3602,8 @@ target_scsi3_emulate_pr_out(struct se_cmd *cmd)
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/*
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/*
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* From PERSISTENT_RESERVE_OUT parameter list (payload)
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* From PERSISTENT_RESERVE_OUT parameter list (payload)
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*/
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*/
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res_key = core_scsi3_extract_reservation_key(&buf[0]);
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res_key = get_unaligned_be64(&buf[0]);
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sa_res_key = core_scsi3_extract_reservation_key(&buf[8]);
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sa_res_key = get_unaligned_be64(&buf[8]);
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/*
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/*
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* REGISTER_AND_MOVE uses a different SA parameter list containing
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* REGISTER_AND_MOVE uses a different SA parameter list containing
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* SCSI TransportIDs.
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* SCSI TransportIDs.
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@ -3734,10 +3717,7 @@ core_scsi3_pri_read_keys(struct se_cmd *cmd)
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if (!buf)
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if (!buf)
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return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
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return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
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buf[0] = ((dev->t10_pr.pr_generation >> 24) & 0xff);
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put_unaligned_be32(dev->t10_pr.pr_generation, buf);
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buf[1] = ((dev->t10_pr.pr_generation >> 16) & 0xff);
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buf[2] = ((dev->t10_pr.pr_generation >> 8) & 0xff);
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buf[3] = (dev->t10_pr.pr_generation & 0xff);
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spin_lock(&dev->t10_pr.registration_lock);
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spin_lock(&dev->t10_pr.registration_lock);
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list_for_each_entry(pr_reg, &dev->t10_pr.registration_list,
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list_for_each_entry(pr_reg, &dev->t10_pr.registration_list,
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@ -3749,23 +3729,13 @@ core_scsi3_pri_read_keys(struct se_cmd *cmd)
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if ((add_len + 8) > (cmd->data_length - 8))
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if ((add_len + 8) > (cmd->data_length - 8))
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break;
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break;
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buf[off++] = ((pr_reg->pr_res_key >> 56) & 0xff);
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put_unaligned_be64(pr_reg->pr_res_key, &buf[off]);
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buf[off++] = ((pr_reg->pr_res_key >> 48) & 0xff);
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off += 8;
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buf[off++] = ((pr_reg->pr_res_key >> 40) & 0xff);
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buf[off++] = ((pr_reg->pr_res_key >> 32) & 0xff);
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buf[off++] = ((pr_reg->pr_res_key >> 24) & 0xff);
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buf[off++] = ((pr_reg->pr_res_key >> 16) & 0xff);
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buf[off++] = ((pr_reg->pr_res_key >> 8) & 0xff);
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buf[off++] = (pr_reg->pr_res_key & 0xff);
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add_len += 8;
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add_len += 8;
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}
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}
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spin_unlock(&dev->t10_pr.registration_lock);
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spin_unlock(&dev->t10_pr.registration_lock);
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buf[4] = ((add_len >> 24) & 0xff);
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put_unaligned_be32(add_len, &buf[4]);
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buf[5] = ((add_len >> 16) & 0xff);
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buf[6] = ((add_len >> 8) & 0xff);
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buf[7] = (add_len & 0xff);
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transport_kunmap_data_sg(cmd);
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transport_kunmap_data_sg(cmd);
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@ -3796,10 +3766,7 @@ core_scsi3_pri_read_reservation(struct se_cmd *cmd)
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if (!buf)
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if (!buf)
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return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
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return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
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buf[0] = ((dev->t10_pr.pr_generation >> 24) & 0xff);
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put_unaligned_be32(dev->t10_pr.pr_generation, &buf[0]);
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buf[1] = ((dev->t10_pr.pr_generation >> 16) & 0xff);
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buf[2] = ((dev->t10_pr.pr_generation >> 8) & 0xff);
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buf[3] = (dev->t10_pr.pr_generation & 0xff);
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spin_lock(&dev->dev_reservation_lock);
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spin_lock(&dev->dev_reservation_lock);
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pr_reg = dev->dev_pr_res_holder;
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pr_reg = dev->dev_pr_res_holder;
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@ -3807,10 +3774,7 @@ core_scsi3_pri_read_reservation(struct se_cmd *cmd)
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/*
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/*
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* Set the hardcoded Additional Length
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* Set the hardcoded Additional Length
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*/
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*/
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buf[4] = ((add_len >> 24) & 0xff);
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put_unaligned_be32(add_len, &buf[4]);
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buf[5] = ((add_len >> 16) & 0xff);
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buf[6] = ((add_len >> 8) & 0xff);
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buf[7] = (add_len & 0xff);
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if (cmd->data_length < 22)
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if (cmd->data_length < 22)
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goto err;
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goto err;
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@ -3837,14 +3801,7 @@ core_scsi3_pri_read_reservation(struct se_cmd *cmd)
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else
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else
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pr_res_key = pr_reg->pr_res_key;
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pr_res_key = pr_reg->pr_res_key;
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buf[8] = ((pr_res_key >> 56) & 0xff);
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put_unaligned_be64(pr_res_key, &buf[8]);
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buf[9] = ((pr_res_key >> 48) & 0xff);
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buf[10] = ((pr_res_key >> 40) & 0xff);
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buf[11] = ((pr_res_key >> 32) & 0xff);
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buf[12] = ((pr_res_key >> 24) & 0xff);
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buf[13] = ((pr_res_key >> 16) & 0xff);
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buf[14] = ((pr_res_key >> 8) & 0xff);
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buf[15] = (pr_res_key & 0xff);
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/*
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/*
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* Set the SCOPE and TYPE
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* Set the SCOPE and TYPE
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*/
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*/
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@ -3882,8 +3839,7 @@ core_scsi3_pri_report_capabilities(struct se_cmd *cmd)
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if (!buf)
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if (!buf)
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return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
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return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
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buf[0] = ((add_len >> 8) & 0xff);
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put_unaligned_be16(add_len, &buf[0]);
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buf[1] = (add_len & 0xff);
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buf[2] |= 0x10; /* CRH: Compatible Reservation Hanlding bit. */
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buf[2] |= 0x10; /* CRH: Compatible Reservation Hanlding bit. */
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buf[2] |= 0x08; /* SIP_C: Specify Initiator Ports Capable bit */
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buf[2] |= 0x08; /* SIP_C: Specify Initiator Ports Capable bit */
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buf[2] |= 0x04; /* ATP_C: All Target Ports Capable bit */
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buf[2] |= 0x04; /* ATP_C: All Target Ports Capable bit */
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@ -3947,10 +3903,7 @@ core_scsi3_pri_read_full_status(struct se_cmd *cmd)
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if (!buf)
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if (!buf)
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return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
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return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
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buf[0] = ((dev->t10_pr.pr_generation >> 24) & 0xff);
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put_unaligned_be32(dev->t10_pr.pr_generation, &buf[0]);
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buf[1] = ((dev->t10_pr.pr_generation >> 16) & 0xff);
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buf[2] = ((dev->t10_pr.pr_generation >> 8) & 0xff);
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buf[3] = (dev->t10_pr.pr_generation & 0xff);
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spin_lock(&dev->dev_reservation_lock);
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spin_lock(&dev->dev_reservation_lock);
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if (dev->dev_pr_res_holder) {
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if (dev->dev_pr_res_holder) {
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@ -3992,14 +3945,8 @@ core_scsi3_pri_read_full_status(struct se_cmd *cmd)
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/*
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/*
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* Set RESERVATION KEY
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* Set RESERVATION KEY
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*/
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*/
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buf[off++] = ((pr_reg->pr_res_key >> 56) & 0xff);
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put_unaligned_be64(pr_reg->pr_res_key, &buf[off]);
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buf[off++] = ((pr_reg->pr_res_key >> 48) & 0xff);
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off += 8;
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buf[off++] = ((pr_reg->pr_res_key >> 40) & 0xff);
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buf[off++] = ((pr_reg->pr_res_key >> 32) & 0xff);
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buf[off++] = ((pr_reg->pr_res_key >> 24) & 0xff);
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buf[off++] = ((pr_reg->pr_res_key >> 16) & 0xff);
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buf[off++] = ((pr_reg->pr_res_key >> 8) & 0xff);
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buf[off++] = (pr_reg->pr_res_key & 0xff);
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off += 4; /* Skip Over Reserved area */
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off += 4; /* Skip Over Reserved area */
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/*
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/*
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@ -4041,8 +3988,8 @@ core_scsi3_pri_read_full_status(struct se_cmd *cmd)
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if (!pr_reg->pr_reg_all_tg_pt) {
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if (!pr_reg->pr_reg_all_tg_pt) {
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u16 sep_rtpi = pr_reg->tg_pt_sep_rtpi;
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u16 sep_rtpi = pr_reg->tg_pt_sep_rtpi;
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buf[off++] = ((sep_rtpi >> 8) & 0xff);
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put_unaligned_be16(sep_rtpi, &buf[off]);
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buf[off++] = (sep_rtpi & 0xff);
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off += 2;
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} else
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} else
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off += 2; /* Skip over RELATIVE TARGET PORT IDENTIFIER */
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off += 2; /* Skip over RELATIVE TARGET PORT IDENTIFIER */
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@ -4062,10 +4009,7 @@ core_scsi3_pri_read_full_status(struct se_cmd *cmd)
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/*
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/*
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* Set the ADDITIONAL DESCRIPTOR LENGTH
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* Set the ADDITIONAL DESCRIPTOR LENGTH
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*/
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*/
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buf[off++] = ((desc_len >> 24) & 0xff);
|
put_unaligned_be32(desc_len, &buf[off]);
|
||||||
buf[off++] = ((desc_len >> 16) & 0xff);
|
|
||||||
buf[off++] = ((desc_len >> 8) & 0xff);
|
|
||||||
buf[off++] = (desc_len & 0xff);
|
|
||||||
/*
|
/*
|
||||||
* Size of full desctipor header minus TransportID
|
* Size of full desctipor header minus TransportID
|
||||||
* containing $FABRIC_MOD specific) initiator device/port
|
* containing $FABRIC_MOD specific) initiator device/port
|
||||||
|
@ -4082,10 +4026,7 @@ core_scsi3_pri_read_full_status(struct se_cmd *cmd)
|
||||||
/*
|
/*
|
||||||
* Set ADDITIONAL_LENGTH
|
* Set ADDITIONAL_LENGTH
|
||||||
*/
|
*/
|
||||||
buf[4] = ((add_len >> 24) & 0xff);
|
put_unaligned_be32(add_len, &buf[4]);
|
||||||
buf[5] = ((add_len >> 16) & 0xff);
|
|
||||||
buf[6] = ((add_len >> 8) & 0xff);
|
|
||||||
buf[7] = (add_len & 0xff);
|
|
||||||
|
|
||||||
transport_kunmap_data_sg(cmd);
|
transport_kunmap_data_sg(cmd);
|
||||||
|
|
||||||
|
|
|
@ -168,7 +168,7 @@ static void pscsi_tape_read_blocksize(struct se_device *dev,
|
||||||
/*
|
/*
|
||||||
* If MODE_SENSE still returns zero, set the default value to 1024.
|
* If MODE_SENSE still returns zero, set the default value to 1024.
|
||||||
*/
|
*/
|
||||||
sdev->sector_size = (buf[9] << 16) | (buf[10] << 8) | (buf[11]);
|
sdev->sector_size = get_unaligned_be24(&buf[9]);
|
||||||
out_free:
|
out_free:
|
||||||
if (!sdev->sector_size)
|
if (!sdev->sector_size)
|
||||||
sdev->sector_size = 1024;
|
sdev->sector_size = 1024;
|
||||||
|
@ -209,8 +209,7 @@ pscsi_get_inquiry_vpd_serial(struct scsi_device *sdev, struct t10_wwn *wwn)
|
||||||
cdb[0] = INQUIRY;
|
cdb[0] = INQUIRY;
|
||||||
cdb[1] = 0x01; /* Query VPD */
|
cdb[1] = 0x01; /* Query VPD */
|
||||||
cdb[2] = 0x80; /* Unit Serial Number */
|
cdb[2] = 0x80; /* Unit Serial Number */
|
||||||
cdb[3] = (INQUIRY_VPD_SERIAL_LEN >> 8) & 0xff;
|
put_unaligned_be16(INQUIRY_VPD_SERIAL_LEN, &cdb[3]);
|
||||||
cdb[4] = (INQUIRY_VPD_SERIAL_LEN & 0xff);
|
|
||||||
|
|
||||||
ret = scsi_execute_req(sdev, cdb, DMA_FROM_DEVICE, buf,
|
ret = scsi_execute_req(sdev, cdb, DMA_FROM_DEVICE, buf,
|
||||||
INQUIRY_VPD_SERIAL_LEN, NULL, HZ, 1, NULL);
|
INQUIRY_VPD_SERIAL_LEN, NULL, HZ, 1, NULL);
|
||||||
|
@ -245,8 +244,7 @@ pscsi_get_inquiry_vpd_device_ident(struct scsi_device *sdev,
|
||||||
cdb[0] = INQUIRY;
|
cdb[0] = INQUIRY;
|
||||||
cdb[1] = 0x01; /* Query VPD */
|
cdb[1] = 0x01; /* Query VPD */
|
||||||
cdb[2] = 0x83; /* Device Identifier */
|
cdb[2] = 0x83; /* Device Identifier */
|
||||||
cdb[3] = (INQUIRY_VPD_DEVICE_IDENTIFIER_LEN >> 8) & 0xff;
|
put_unaligned_be16(INQUIRY_VPD_DEVICE_IDENTIFIER_LEN, &cdb[3]);
|
||||||
cdb[4] = (INQUIRY_VPD_DEVICE_IDENTIFIER_LEN & 0xff);
|
|
||||||
|
|
||||||
ret = scsi_execute_req(sdev, cdb, DMA_FROM_DEVICE, buf,
|
ret = scsi_execute_req(sdev, cdb, DMA_FROM_DEVICE, buf,
|
||||||
INQUIRY_VPD_DEVICE_IDENTIFIER_LEN,
|
INQUIRY_VPD_DEVICE_IDENTIFIER_LEN,
|
||||||
|
@ -254,7 +252,7 @@ pscsi_get_inquiry_vpd_device_ident(struct scsi_device *sdev,
|
||||||
if (ret)
|
if (ret)
|
||||||
goto out;
|
goto out;
|
||||||
|
|
||||||
page_len = (buf[2] << 8) | buf[3];
|
page_len = get_unaligned_be16(&buf[2]);
|
||||||
while (page_len > 0) {
|
while (page_len > 0) {
|
||||||
/* Grab a pointer to the Identification descriptor */
|
/* Grab a pointer to the Identification descriptor */
|
||||||
page_83 = &buf[off];
|
page_83 = &buf[off];
|
||||||
|
@ -669,19 +667,17 @@ after_mode_sense:
|
||||||
}
|
}
|
||||||
|
|
||||||
if (cdb[0] == MODE_SELECT)
|
if (cdb[0] == MODE_SELECT)
|
||||||
bdl = (buf[3]);
|
bdl = buf[3];
|
||||||
else
|
else
|
||||||
bdl = (buf[6] << 8) | (buf[7]);
|
bdl = get_unaligned_be16(&buf[6]);
|
||||||
|
|
||||||
if (!bdl)
|
if (!bdl)
|
||||||
goto after_mode_select;
|
goto after_mode_select;
|
||||||
|
|
||||||
if (cdb[0] == MODE_SELECT)
|
if (cdb[0] == MODE_SELECT)
|
||||||
blocksize = (buf[9] << 16) | (buf[10] << 8) |
|
blocksize = get_unaligned_be24(&buf[9]);
|
||||||
(buf[11]);
|
|
||||||
else
|
else
|
||||||
blocksize = (buf[13] << 16) | (buf[14] << 8) |
|
blocksize = get_unaligned_be24(&buf[13]);
|
||||||
(buf[15]);
|
|
||||||
|
|
||||||
sd->sector_size = blocksize;
|
sd->sector_size = blocksize;
|
||||||
}
|
}
|
||||||
|
|
|
@ -71,14 +71,8 @@ sbc_emulate_readcapacity(struct se_cmd *cmd)
|
||||||
else
|
else
|
||||||
blocks = (u32)blocks_long;
|
blocks = (u32)blocks_long;
|
||||||
|
|
||||||
buf[0] = (blocks >> 24) & 0xff;
|
put_unaligned_be32(blocks, &buf[0]);
|
||||||
buf[1] = (blocks >> 16) & 0xff;
|
put_unaligned_be32(dev->dev_attrib.block_size, &buf[4]);
|
||||||
buf[2] = (blocks >> 8) & 0xff;
|
|
||||||
buf[3] = blocks & 0xff;
|
|
||||||
buf[4] = (dev->dev_attrib.block_size >> 24) & 0xff;
|
|
||||||
buf[5] = (dev->dev_attrib.block_size >> 16) & 0xff;
|
|
||||||
buf[6] = (dev->dev_attrib.block_size >> 8) & 0xff;
|
|
||||||
buf[7] = dev->dev_attrib.block_size & 0xff;
|
|
||||||
|
|
||||||
rbuf = transport_kmap_data_sg(cmd);
|
rbuf = transport_kmap_data_sg(cmd);
|
||||||
if (rbuf) {
|
if (rbuf) {
|
||||||
|
@ -102,18 +96,8 @@ sbc_emulate_readcapacity_16(struct se_cmd *cmd)
|
||||||
unsigned long long blocks = dev->transport->get_blocks(dev);
|
unsigned long long blocks = dev->transport->get_blocks(dev);
|
||||||
|
|
||||||
memset(buf, 0, sizeof(buf));
|
memset(buf, 0, sizeof(buf));
|
||||||
buf[0] = (blocks >> 56) & 0xff;
|
put_unaligned_be64(blocks, &buf[0]);
|
||||||
buf[1] = (blocks >> 48) & 0xff;
|
put_unaligned_be32(dev->dev_attrib.block_size, &buf[8]);
|
||||||
buf[2] = (blocks >> 40) & 0xff;
|
|
||||||
buf[3] = (blocks >> 32) & 0xff;
|
|
||||||
buf[4] = (blocks >> 24) & 0xff;
|
|
||||||
buf[5] = (blocks >> 16) & 0xff;
|
|
||||||
buf[6] = (blocks >> 8) & 0xff;
|
|
||||||
buf[7] = blocks & 0xff;
|
|
||||||
buf[8] = (dev->dev_attrib.block_size >> 24) & 0xff;
|
|
||||||
buf[9] = (dev->dev_attrib.block_size >> 16) & 0xff;
|
|
||||||
buf[10] = (dev->dev_attrib.block_size >> 8) & 0xff;
|
|
||||||
buf[11] = dev->dev_attrib.block_size & 0xff;
|
|
||||||
/*
|
/*
|
||||||
* Set P_TYPE and PROT_EN bits for DIF support
|
* Set P_TYPE and PROT_EN bits for DIF support
|
||||||
*/
|
*/
|
||||||
|
@ -134,8 +118,8 @@ sbc_emulate_readcapacity_16(struct se_cmd *cmd)
|
||||||
|
|
||||||
if (dev->transport->get_alignment_offset_lbas) {
|
if (dev->transport->get_alignment_offset_lbas) {
|
||||||
u16 lalba = dev->transport->get_alignment_offset_lbas(dev);
|
u16 lalba = dev->transport->get_alignment_offset_lbas(dev);
|
||||||
buf[14] = (lalba >> 8) & 0x3f;
|
|
||||||
buf[15] = lalba & 0xff;
|
put_unaligned_be16(lalba, &buf[14]);
|
||||||
}
|
}
|
||||||
|
|
||||||
/*
|
/*
|
||||||
|
@ -262,18 +246,17 @@ static inline u32 transport_get_sectors_6(unsigned char *cdb)
|
||||||
|
|
||||||
static inline u32 transport_get_sectors_10(unsigned char *cdb)
|
static inline u32 transport_get_sectors_10(unsigned char *cdb)
|
||||||
{
|
{
|
||||||
return (u32)(cdb[7] << 8) + cdb[8];
|
return get_unaligned_be16(&cdb[7]);
|
||||||
}
|
}
|
||||||
|
|
||||||
static inline u32 transport_get_sectors_12(unsigned char *cdb)
|
static inline u32 transport_get_sectors_12(unsigned char *cdb)
|
||||||
{
|
{
|
||||||
return (u32)(cdb[6] << 24) + (cdb[7] << 16) + (cdb[8] << 8) + cdb[9];
|
return get_unaligned_be32(&cdb[6]);
|
||||||
}
|
}
|
||||||
|
|
||||||
static inline u32 transport_get_sectors_16(unsigned char *cdb)
|
static inline u32 transport_get_sectors_16(unsigned char *cdb)
|
||||||
{
|
{
|
||||||
return (u32)(cdb[10] << 24) + (cdb[11] << 16) +
|
return get_unaligned_be32(&cdb[10]);
|
||||||
(cdb[12] << 8) + cdb[13];
|
|
||||||
}
|
}
|
||||||
|
|
||||||
/*
|
/*
|
||||||
|
@ -281,29 +264,23 @@ static inline u32 transport_get_sectors_16(unsigned char *cdb)
|
||||||
*/
|
*/
|
||||||
static inline u32 transport_get_sectors_32(unsigned char *cdb)
|
static inline u32 transport_get_sectors_32(unsigned char *cdb)
|
||||||
{
|
{
|
||||||
return (u32)(cdb[28] << 24) + (cdb[29] << 16) +
|
return get_unaligned_be32(&cdb[28]);
|
||||||
(cdb[30] << 8) + cdb[31];
|
|
||||||
|
|
||||||
}
|
}
|
||||||
|
|
||||||
static inline u32 transport_lba_21(unsigned char *cdb)
|
static inline u32 transport_lba_21(unsigned char *cdb)
|
||||||
{
|
{
|
||||||
return ((cdb[1] & 0x1f) << 16) | (cdb[2] << 8) | cdb[3];
|
return get_unaligned_be24(&cdb[1]) & 0x1fffff;
|
||||||
}
|
}
|
||||||
|
|
||||||
static inline u32 transport_lba_32(unsigned char *cdb)
|
static inline u32 transport_lba_32(unsigned char *cdb)
|
||||||
{
|
{
|
||||||
return (cdb[2] << 24) | (cdb[3] << 16) | (cdb[4] << 8) | cdb[5];
|
return get_unaligned_be32(&cdb[2]);
|
||||||
}
|
}
|
||||||
|
|
||||||
static inline unsigned long long transport_lba_64(unsigned char *cdb)
|
static inline unsigned long long transport_lba_64(unsigned char *cdb)
|
||||||
{
|
{
|
||||||
unsigned int __v1, __v2;
|
return get_unaligned_be64(&cdb[2]);
|
||||||
|
|
||||||
__v1 = (cdb[2] << 24) | (cdb[3] << 16) | (cdb[4] << 8) | cdb[5];
|
|
||||||
__v2 = (cdb[6] << 24) | (cdb[7] << 16) | (cdb[8] << 8) | cdb[9];
|
|
||||||
|
|
||||||
return ((unsigned long long)__v2) | (unsigned long long)__v1 << 32;
|
|
||||||
}
|
}
|
||||||
|
|
||||||
/*
|
/*
|
||||||
|
@ -311,12 +288,7 @@ static inline unsigned long long transport_lba_64(unsigned char *cdb)
|
||||||
*/
|
*/
|
||||||
static inline unsigned long long transport_lba_64_ext(unsigned char *cdb)
|
static inline unsigned long long transport_lba_64_ext(unsigned char *cdb)
|
||||||
{
|
{
|
||||||
unsigned int __v1, __v2;
|
return get_unaligned_be64(&cdb[12]);
|
||||||
|
|
||||||
__v1 = (cdb[12] << 24) | (cdb[13] << 16) | (cdb[14] << 8) | cdb[15];
|
|
||||||
__v2 = (cdb[16] << 24) | (cdb[17] << 16) | (cdb[18] << 8) | cdb[19];
|
|
||||||
|
|
||||||
return ((unsigned long long)__v2) | (unsigned long long)__v1 << 32;
|
|
||||||
}
|
}
|
||||||
|
|
||||||
static sense_reason_t
|
static sense_reason_t
|
||||||
|
@ -1051,8 +1023,7 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops)
|
||||||
cmd->t_task_cdb[1] & 0x1f);
|
cmd->t_task_cdb[1] & 0x1f);
|
||||||
return TCM_INVALID_CDB_FIELD;
|
return TCM_INVALID_CDB_FIELD;
|
||||||
}
|
}
|
||||||
size = (cdb[10] << 24) | (cdb[11] << 16) |
|
size = get_unaligned_be32(&cdb[10]);
|
||||||
(cdb[12] << 8) | cdb[13];
|
|
||||||
break;
|
break;
|
||||||
case SYNCHRONIZE_CACHE:
|
case SYNCHRONIZE_CACHE:
|
||||||
case SYNCHRONIZE_CACHE_16:
|
case SYNCHRONIZE_CACHE_16:
|
||||||
|
|
|
@ -287,8 +287,8 @@ check_t10_vend_desc:
|
||||||
/* Skip over Obsolete field in RTPI payload
|
/* Skip over Obsolete field in RTPI payload
|
||||||
* in Table 472 */
|
* in Table 472 */
|
||||||
off += 2;
|
off += 2;
|
||||||
buf[off++] = ((lun->lun_rtpi >> 8) & 0xff);
|
put_unaligned_be16(lun->lun_rtpi, &buf[off]);
|
||||||
buf[off++] = (lun->lun_rtpi & 0xff);
|
off += 2;
|
||||||
len += 8; /* Header size + Designation descriptor */
|
len += 8; /* Header size + Designation descriptor */
|
||||||
/*
|
/*
|
||||||
* Target port group identifier, see spc4r17
|
* Target port group identifier, see spc4r17
|
||||||
|
@ -316,8 +316,8 @@ check_t10_vend_desc:
|
||||||
off++; /* Skip over Reserved */
|
off++; /* Skip over Reserved */
|
||||||
buf[off++] = 4; /* DESIGNATOR LENGTH */
|
buf[off++] = 4; /* DESIGNATOR LENGTH */
|
||||||
off += 2; /* Skip over Reserved Field */
|
off += 2; /* Skip over Reserved Field */
|
||||||
buf[off++] = ((tg_pt_gp_id >> 8) & 0xff);
|
put_unaligned_be16(tg_pt_gp_id, &buf[off]);
|
||||||
buf[off++] = (tg_pt_gp_id & 0xff);
|
off += 2;
|
||||||
len += 8; /* Header size + Designation descriptor */
|
len += 8; /* Header size + Designation descriptor */
|
||||||
/*
|
/*
|
||||||
* Logical Unit Group identifier, see spc4r17
|
* Logical Unit Group identifier, see spc4r17
|
||||||
|
@ -343,8 +343,8 @@ check_lu_gp:
|
||||||
off++; /* Skip over Reserved */
|
off++; /* Skip over Reserved */
|
||||||
buf[off++] = 4; /* DESIGNATOR LENGTH */
|
buf[off++] = 4; /* DESIGNATOR LENGTH */
|
||||||
off += 2; /* Skip over Reserved Field */
|
off += 2; /* Skip over Reserved Field */
|
||||||
buf[off++] = ((lu_gp_id >> 8) & 0xff);
|
put_unaligned_be16(lu_gp_id, &buf[off]);
|
||||||
buf[off++] = (lu_gp_id & 0xff);
|
off += 2;
|
||||||
len += 8; /* Header size + Designation descriptor */
|
len += 8; /* Header size + Designation descriptor */
|
||||||
/*
|
/*
|
||||||
* SCSI name string designator, see spc4r17
|
* SCSI name string designator, see spc4r17
|
||||||
|
@ -431,8 +431,7 @@ check_scsi_name:
|
||||||
/* Header size + Designation descriptor */
|
/* Header size + Designation descriptor */
|
||||||
len += (scsi_target_len + 4);
|
len += (scsi_target_len + 4);
|
||||||
}
|
}
|
||||||
buf[2] = ((len >> 8) & 0xff);
|
put_unaligned_be16(len, &buf[2]); /* Page Length for VPD 0x83 */
|
||||||
buf[3] = (len & 0xff); /* Page Length for VPD 0x83 */
|
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
EXPORT_SYMBOL(spc_emulate_evpd_83);
|
EXPORT_SYMBOL(spc_emulate_evpd_83);
|
||||||
|
@ -1288,7 +1287,7 @@ spc_parse_cdb(struct se_cmd *cmd, unsigned int *size)
|
||||||
cmd->execute_cmd = spc_emulate_modeselect;
|
cmd->execute_cmd = spc_emulate_modeselect;
|
||||||
break;
|
break;
|
||||||
case MODE_SELECT_10:
|
case MODE_SELECT_10:
|
||||||
*size = (cdb[7] << 8) + cdb[8];
|
*size = get_unaligned_be16(&cdb[7]);
|
||||||
cmd->execute_cmd = spc_emulate_modeselect;
|
cmd->execute_cmd = spc_emulate_modeselect;
|
||||||
break;
|
break;
|
||||||
case MODE_SENSE:
|
case MODE_SENSE:
|
||||||
|
@ -1296,25 +1295,25 @@ spc_parse_cdb(struct se_cmd *cmd, unsigned int *size)
|
||||||
cmd->execute_cmd = spc_emulate_modesense;
|
cmd->execute_cmd = spc_emulate_modesense;
|
||||||
break;
|
break;
|
||||||
case MODE_SENSE_10:
|
case MODE_SENSE_10:
|
||||||
*size = (cdb[7] << 8) + cdb[8];
|
*size = get_unaligned_be16(&cdb[7]);
|
||||||
cmd->execute_cmd = spc_emulate_modesense;
|
cmd->execute_cmd = spc_emulate_modesense;
|
||||||
break;
|
break;
|
||||||
case LOG_SELECT:
|
case LOG_SELECT:
|
||||||
case LOG_SENSE:
|
case LOG_SENSE:
|
||||||
*size = (cdb[7] << 8) + cdb[8];
|
*size = get_unaligned_be16(&cdb[7]);
|
||||||
break;
|
break;
|
||||||
case PERSISTENT_RESERVE_IN:
|
case PERSISTENT_RESERVE_IN:
|
||||||
*size = (cdb[7] << 8) + cdb[8];
|
*size = get_unaligned_be16(&cdb[7]);
|
||||||
cmd->execute_cmd = target_scsi3_emulate_pr_in;
|
cmd->execute_cmd = target_scsi3_emulate_pr_in;
|
||||||
break;
|
break;
|
||||||
case PERSISTENT_RESERVE_OUT:
|
case PERSISTENT_RESERVE_OUT:
|
||||||
*size = (cdb[7] << 8) + cdb[8];
|
*size = get_unaligned_be16(&cdb[7]);
|
||||||
cmd->execute_cmd = target_scsi3_emulate_pr_out;
|
cmd->execute_cmd = target_scsi3_emulate_pr_out;
|
||||||
break;
|
break;
|
||||||
case RELEASE:
|
case RELEASE:
|
||||||
case RELEASE_10:
|
case RELEASE_10:
|
||||||
if (cdb[0] == RELEASE_10)
|
if (cdb[0] == RELEASE_10)
|
||||||
*size = (cdb[7] << 8) | cdb[8];
|
*size = get_unaligned_be16(&cdb[7]);
|
||||||
else
|
else
|
||||||
*size = cmd->data_length;
|
*size = cmd->data_length;
|
||||||
|
|
||||||
|
@ -1327,7 +1326,7 @@ spc_parse_cdb(struct se_cmd *cmd, unsigned int *size)
|
||||||
* Assume the passthrough or $FABRIC_MOD will tell us about it.
|
* Assume the passthrough or $FABRIC_MOD will tell us about it.
|
||||||
*/
|
*/
|
||||||
if (cdb[0] == RESERVE_10)
|
if (cdb[0] == RESERVE_10)
|
||||||
*size = (cdb[7] << 8) | cdb[8];
|
*size = get_unaligned_be16(&cdb[7]);
|
||||||
else
|
else
|
||||||
*size = cmd->data_length;
|
*size = cmd->data_length;
|
||||||
|
|
||||||
|
@ -1338,7 +1337,7 @@ spc_parse_cdb(struct se_cmd *cmd, unsigned int *size)
|
||||||
cmd->execute_cmd = spc_emulate_request_sense;
|
cmd->execute_cmd = spc_emulate_request_sense;
|
||||||
break;
|
break;
|
||||||
case INQUIRY:
|
case INQUIRY:
|
||||||
*size = (cdb[3] << 8) + cdb[4];
|
*size = get_unaligned_be16(&cdb[3]);
|
||||||
|
|
||||||
/*
|
/*
|
||||||
* Do implicit HEAD_OF_QUEUE processing for INQUIRY.
|
* Do implicit HEAD_OF_QUEUE processing for INQUIRY.
|
||||||
|
@ -1349,7 +1348,7 @@ spc_parse_cdb(struct se_cmd *cmd, unsigned int *size)
|
||||||
break;
|
break;
|
||||||
case SECURITY_PROTOCOL_IN:
|
case SECURITY_PROTOCOL_IN:
|
||||||
case SECURITY_PROTOCOL_OUT:
|
case SECURITY_PROTOCOL_OUT:
|
||||||
*size = (cdb[6] << 24) | (cdb[7] << 16) | (cdb[8] << 8) | cdb[9];
|
*size = get_unaligned_be32(&cdb[6]);
|
||||||
break;
|
break;
|
||||||
case EXTENDED_COPY:
|
case EXTENDED_COPY:
|
||||||
*size = get_unaligned_be32(&cdb[10]);
|
*size = get_unaligned_be32(&cdb[10]);
|
||||||
|
@ -1361,19 +1360,18 @@ spc_parse_cdb(struct se_cmd *cmd, unsigned int *size)
|
||||||
break;
|
break;
|
||||||
case READ_ATTRIBUTE:
|
case READ_ATTRIBUTE:
|
||||||
case WRITE_ATTRIBUTE:
|
case WRITE_ATTRIBUTE:
|
||||||
*size = (cdb[10] << 24) | (cdb[11] << 16) |
|
*size = get_unaligned_be32(&cdb[10]);
|
||||||
(cdb[12] << 8) | cdb[13];
|
|
||||||
break;
|
break;
|
||||||
case RECEIVE_DIAGNOSTIC:
|
case RECEIVE_DIAGNOSTIC:
|
||||||
case SEND_DIAGNOSTIC:
|
case SEND_DIAGNOSTIC:
|
||||||
*size = (cdb[3] << 8) | cdb[4];
|
*size = get_unaligned_be16(&cdb[3]);
|
||||||
break;
|
break;
|
||||||
case WRITE_BUFFER:
|
case WRITE_BUFFER:
|
||||||
*size = (cdb[6] << 16) + (cdb[7] << 8) + cdb[8];
|
*size = get_unaligned_be24(&cdb[6]);
|
||||||
break;
|
break;
|
||||||
case REPORT_LUNS:
|
case REPORT_LUNS:
|
||||||
cmd->execute_cmd = spc_emulate_report_luns;
|
cmd->execute_cmd = spc_emulate_report_luns;
|
||||||
*size = (cdb[6] << 24) | (cdb[7] << 16) | (cdb[8] << 8) | cdb[9];
|
*size = get_unaligned_be32(&cdb[6]);
|
||||||
/*
|
/*
|
||||||
* Do implicit HEAD_OF_QUEUE processing for REPORT_LUNS
|
* Do implicit HEAD_OF_QUEUE processing for REPORT_LUNS
|
||||||
* See spc4r17 section 5.3
|
* See spc4r17 section 5.3
|
||||||
|
|
|
@ -311,9 +311,7 @@ static int target_xcopy_parse_segdesc_02(struct se_cmd *se_cmd, struct xcopy_op
|
||||||
(unsigned long long)xop->dst_lba);
|
(unsigned long long)xop->dst_lba);
|
||||||
|
|
||||||
if (dc != 0) {
|
if (dc != 0) {
|
||||||
xop->dbl = (desc[29] & 0xff) << 16;
|
xop->dbl = get_unaligned_be24(&desc[29]);
|
||||||
xop->dbl |= (desc[30] & 0xff) << 8;
|
|
||||||
xop->dbl |= desc[31] & 0xff;
|
|
||||||
|
|
||||||
pr_debug("XCOPY seg desc 0x02: DC=1 w/ dbl: %u\n", xop->dbl);
|
pr_debug("XCOPY seg desc 0x02: DC=1 w/ dbl: %u\n", xop->dbl);
|
||||||
}
|
}
|
||||||
|
|
|
@ -2,6 +2,7 @@
|
||||||
#define TARGET_CORE_BACKEND_H
|
#define TARGET_CORE_BACKEND_H
|
||||||
|
|
||||||
#include <linux/types.h>
|
#include <linux/types.h>
|
||||||
|
#include <asm/unaligned.h>
|
||||||
#include <target/target_core_base.h>
|
#include <target/target_core_base.h>
|
||||||
|
|
||||||
#define TRANSPORT_FLAG_PASSTHROUGH 0x1
|
#define TRANSPORT_FLAG_PASSTHROUGH 0x1
|
||||||
|
@ -109,4 +110,11 @@ sector_t target_to_linux_sector(struct se_device *dev, sector_t lb);
|
||||||
bool target_configure_unmap_from_queue(struct se_dev_attrib *attrib,
|
bool target_configure_unmap_from_queue(struct se_dev_attrib *attrib,
|
||||||
struct request_queue *q);
|
struct request_queue *q);
|
||||||
|
|
||||||
|
|
||||||
|
/* Only use get_unaligned_be24() if reading p - 1 is allowed. */
|
||||||
|
static inline uint32_t get_unaligned_be24(const uint8_t *const p)
|
||||||
|
{
|
||||||
|
return get_unaligned_be32(p - 1) & 0xffffffU;
|
||||||
|
}
|
||||||
|
|
||||||
#endif /* TARGET_CORE_BACKEND_H */
|
#endif /* TARGET_CORE_BACKEND_H */
|
||||||
|
|
Loading…
Reference in New Issue