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authorChristoph Hellwig <hch@lst.de>2019-01-29 09:33:07 +0100
committerMartin K. Petersen <martin.petersen@oracle.com>2019-02-05 21:29:21 -0500
commitae3d56d81507c33024ba7c1eae2ef433aa9bc0d5 (patch)
tree8a812d0cbc109b3c09a18fd314499d064798037c /drivers/scsi/cxgbi
parent19fcae3d4f2dd513d472055fb694d802e9a21b91 (diff)
scsi: remove bidirectional command support
No real need for bidi support once the OSD code is gone. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/cxgbi')
-rw-r--r--drivers/scsi/cxgbi/libcxgbi.c13
1 files changed, 5 insertions, 8 deletions
diff --git a/drivers/scsi/cxgbi/libcxgbi.c b/drivers/scsi/cxgbi/libcxgbi.c
index 75f876409fb9..4466ae5c9a74 100644
--- a/drivers/scsi/cxgbi/libcxgbi.c
+++ b/drivers/scsi/cxgbi/libcxgbi.c
@@ -1211,7 +1211,7 @@ scmd_get_params(struct scsi_cmnd *sc, struct scatterlist **sgl,
unsigned int *sgcnt, unsigned int *dlen,
unsigned int prot)
{
- struct scsi_data_buffer *sdb = prot ? scsi_prot(sc) : scsi_out(sc);
+ struct scsi_data_buffer *sdb = prot ? scsi_prot(sc) : &sc->sdb;
*sgl = sdb->table.sgl;
*sgcnt = sdb->table.nents;
@@ -1427,8 +1427,7 @@ static void task_release_itt(struct iscsi_task *task, itt_t hdr_itt)
log_debug(1 << CXGBI_DBG_DDP,
"cdev 0x%p, task 0x%p, release tag 0x%x.\n",
cdev, task, tag);
- if (sc &&
- (scsi_bidi_cmnd(sc) || sc->sc_data_direction == DMA_FROM_DEVICE) &&
+ if (sc && sc->sc_data_direction == DMA_FROM_DEVICE &&
cxgbi_ppm_is_ddp_tag(ppm, tag)) {
struct cxgbi_task_data *tdata = iscsi_task_cxgbi_data(task);
struct cxgbi_task_tag_info *ttinfo = &tdata->ttinfo;
@@ -1460,9 +1459,7 @@ static int task_reserve_itt(struct iscsi_task *task, itt_t *hdr_itt)
u32 tag = 0;
int err = -EINVAL;
- if (sc &&
- (scsi_bidi_cmnd(sc) || sc->sc_data_direction == DMA_FROM_DEVICE)
- ) {
+ if (sc && sc->sc_data_direction == DMA_FROM_DEVICE) {
struct cxgbi_task_data *tdata = iscsi_task_cxgbi_data(task);
struct cxgbi_task_tag_info *ttinfo = &tdata->ttinfo;
@@ -1896,7 +1893,7 @@ int cxgbi_conn_alloc_pdu(struct iscsi_task *task, u8 opcode)
if (SKB_MAX_HEAD(cdev->skb_tx_rsvd) > (512 * MAX_SKB_FRAGS) &&
(opcode == ISCSI_OP_SCSI_DATA_OUT ||
(opcode == ISCSI_OP_SCSI_CMD &&
- (scsi_bidi_cmnd(sc) || sc->sc_data_direction == DMA_TO_DEVICE))))
+ sc->sc_data_direction == DMA_TO_DEVICE)))
/* data could goes into skb head */
headroom += min_t(unsigned int,
SKB_MAX_HEAD(cdev->skb_tx_rsvd),
@@ -1971,7 +1968,7 @@ int cxgbi_conn_init_pdu(struct iscsi_task *task, unsigned int offset,
return 0;
if (task->sc) {
- struct scsi_data_buffer *sdb = scsi_out(task->sc);
+ struct scsi_data_buffer *sdb = &task->sc->sdb;
struct scatterlist *sg = NULL;
int err;