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-rw-r--r--drivers/scsi/hosts.c1
-rw-r--r--drivers/scsi/scsi_lib.c26
-rw-r--r--drivers/scsi/scsi_sysfs.c2
-rw-r--r--drivers/scsi/sd_dif.c11
-rw-r--r--drivers/scsi/sg.c2
5 files changed, 28 insertions, 14 deletions
diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c
index 8a8f803439e..10478153641 100644
--- a/drivers/scsi/hosts.c
+++ b/drivers/scsi/hosts.c
@@ -376,6 +376,7 @@ struct Scsi_Host *scsi_host_alloc(struct scsi_host_template *sht, int privsize)
shost->this_id = sht->this_id;
shost->can_queue = sht->can_queue;
shost->sg_tablesize = sht->sg_tablesize;
+ shost->sg_prot_tablesize = sht->sg_prot_tablesize;
shost->cmd_per_lun = sht->cmd_per_lun;
shost->unchecked_isa_dma = sht->unchecked_isa_dma;
shost->use_clustering = sht->use_clustering;
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index ee02d3838a0..8041fe1ab17 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -968,11 +968,13 @@ static int scsi_init_sgtable(struct request *req, struct scsi_data_buffer *sdb,
*/
int scsi_init_io(struct scsi_cmnd *cmd, gfp_t gfp_mask)
{
- int error = scsi_init_sgtable(cmd->request, &cmd->sdb, gfp_mask);
+ struct request *rq = cmd->request;
+
+ int error = scsi_init_sgtable(rq, &cmd->sdb, gfp_mask);
if (error)
goto err_exit;
- if (blk_bidi_rq(cmd->request)) {
+ if (blk_bidi_rq(rq)) {
struct scsi_data_buffer *bidi_sdb = kmem_cache_zalloc(
scsi_sdb_cache, GFP_ATOMIC);
if (!bidi_sdb) {
@@ -980,28 +982,28 @@ int scsi_init_io(struct scsi_cmnd *cmd, gfp_t gfp_mask)
goto err_exit;
}
- cmd->request->next_rq->special = bidi_sdb;
- error = scsi_init_sgtable(cmd->request->next_rq, bidi_sdb,
- GFP_ATOMIC);
+ rq->next_rq->special = bidi_sdb;
+ error = scsi_init_sgtable(rq->next_rq, bidi_sdb, GFP_ATOMIC);
if (error)
goto err_exit;
}
- if (blk_integrity_rq(cmd->request)) {
+ if (blk_integrity_rq(rq)) {
struct scsi_data_buffer *prot_sdb = cmd->prot_sdb;
int ivecs, count;
BUG_ON(prot_sdb == NULL);
- ivecs = blk_rq_count_integrity_sg(cmd->request);
+ ivecs = blk_rq_count_integrity_sg(rq->q, rq->bio);
if (scsi_alloc_sgtable(prot_sdb, ivecs, gfp_mask)) {
error = BLKPREP_DEFER;
goto err_exit;
}
- count = blk_rq_map_integrity_sg(cmd->request,
+ count = blk_rq_map_integrity_sg(rq->q, rq->bio,
prot_sdb->table.sgl);
BUG_ON(unlikely(count > ivecs));
+ BUG_ON(unlikely(count > queue_max_integrity_segments(rq->q)));
cmd->prot_sdb = prot_sdb;
cmd->prot_sdb->table.nents = count;
@@ -1625,6 +1627,14 @@ struct request_queue *__scsi_alloc_queue(struct Scsi_Host *shost,
blk_queue_max_segments(q, min_t(unsigned short, shost->sg_tablesize,
SCSI_MAX_SG_CHAIN_SEGMENTS));
+ if (scsi_host_prot_dma(shost)) {
+ shost->sg_prot_tablesize =
+ min_not_zero(shost->sg_prot_tablesize,
+ (unsigned short)SCSI_MAX_PROT_SG_SEGMENTS);
+ BUG_ON(shost->sg_prot_tablesize < shost->sg_tablesize);
+ blk_queue_max_integrity_segments(q, shost->sg_prot_tablesize);
+ }
+
blk_queue_max_hw_sectors(q, shost->max_sectors);
blk_queue_bounce_limit(q, scsi_calculate_bounce_limit(shost));
blk_queue_segment_boundary(q, shost->dma_boundary);
diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
index c3f67373a4f..20ad59dff73 100644
--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -251,6 +251,7 @@ shost_rd_attr(host_busy, "%hu\n");
shost_rd_attr(cmd_per_lun, "%hd\n");
shost_rd_attr(can_queue, "%hd\n");
shost_rd_attr(sg_tablesize, "%hu\n");
+shost_rd_attr(sg_prot_tablesize, "%hu\n");
shost_rd_attr(unchecked_isa_dma, "%d\n");
shost_rd_attr(prot_capabilities, "%u\n");
shost_rd_attr(prot_guard_type, "%hd\n");
@@ -262,6 +263,7 @@ static struct attribute *scsi_sysfs_shost_attrs[] = {
&dev_attr_cmd_per_lun.attr,
&dev_attr_can_queue.attr,
&dev_attr_sg_tablesize.attr,
+ &dev_attr_sg_prot_tablesize.attr,
&dev_attr_unchecked_isa_dma.attr,
&dev_attr_proc_name.attr,
&dev_attr_scan.attr,
diff --git a/drivers/scsi/sd_dif.c b/drivers/scsi/sd_dif.c
index 84be62149c6..0cb39ff2117 100644
--- a/drivers/scsi/sd_dif.c
+++ b/drivers/scsi/sd_dif.c
@@ -375,21 +375,20 @@ int sd_dif_prepare(struct request *rq, sector_t hw_sector, unsigned int sector_s
unsigned int i, j;
u32 phys, virt;
- /* Already remapped? */
- if (rq->cmd_flags & REQ_INTEGRITY)
- return 0;
-
sdkp = rq->bio->bi_bdev->bd_disk->private_data;
if (sdkp->protection_type == SD_DIF_TYPE3_PROTECTION)
return 0;
- rq->cmd_flags |= REQ_INTEGRITY;
phys = hw_sector & 0xffffffff;
__rq_for_each_bio(bio, rq) {
struct bio_vec *iv;
+ /* Already remapped? */
+ if (bio_flagged(bio, BIO_MAPPED_INTEGRITY))
+ break;
+
virt = bio->bi_integrity->bip_sector & 0xffffffff;
bip_for_each_vec(iv, bio->bi_integrity, i) {
@@ -408,6 +407,8 @@ int sd_dif_prepare(struct request *rq, sector_t hw_sector, unsigned int sector_s
kunmap_atomic(sdt, KM_USER0);
}
+
+ bio->bi_flags |= BIO_MAPPED_INTEGRITY;
}
return 0;
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index 58ec8f4efcc..5428d53f5a1 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -1660,7 +1660,7 @@ static int sg_start_req(Sg_request *srp, unsigned char *cmd)
if (sg_allow_dio && hp->flags & SG_FLAG_DIRECT_IO &&
dxfer_dir != SG_DXFER_UNKNOWN && !iov_count &&
!sfp->parentdp->device->host->unchecked_isa_dma &&
- blk_rq_aligned(q, hp->dxferp, dxfer_len))
+ blk_rq_aligned(q, (unsigned long)hp->dxferp, dxfer_len))
md = NULL;
else
md = &map_data;
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-14 04:59:58 +0000