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ocs_fc: Increase maximum supported SG elements to support larger transfer sizes.

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Reported by: ken@kdm.org
Reviewed by: mav, ken
This commit is contained in:
Ram Kishore Vegesna 2021-09-24 14:35:03 +05:30
parent 3bf42363b0
commit 322dbb8ce8
2 changed files with 10 additions and 6 deletions
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12
sys/dev/ocs_fc/ocs_cam.c
View File

@ -1704,7 +1704,7 @@ ocs_target_io(struct ocs_softc *ocs, union ccb *ccb)
rc = ocs_scsi_send_resp(io, 0, &resp, ocs_scsi_target_io_cb, ccb);
} else if (xferlen != 0) {
ocs_scsi_sgl_t sgl[OCS_FC_MAX_SGL];
ocs_scsi_sgl_t *sgl;
int32_t sgl_count = 0;
io->tgt_io.state = OCS_CAM_IO_DATA;
@ -1712,7 +1712,9 @@ ocs_target_io(struct ocs_softc *ocs, union ccb *ccb)
if (sendstatus)
io->tgt_io.sendresp = 1;
sgl_count = ocs_build_scsi_sgl(ocs, ccb, io, sgl, ARRAY_SIZE(sgl));
sgl = io->sgl;
sgl_count = ocs_build_scsi_sgl(ocs, ccb, io, sgl, io->sgl_allocated);
if (sgl_count > 0) {
if (cam_dir == CAM_DIR_IN) {
rc = ocs_scsi_send_rd_data(io, 0, NULL, sgl,
@ -1785,7 +1787,7 @@ ocs_initiator_io(struct ocs_softc *ocs, union ccb *ccb)
struct ccb_hdr *ccb_h = &csio->ccb_h;
ocs_node_t *node = NULL;
ocs_io_t *io = NULL;
ocs_scsi_sgl_t sgl[OCS_FC_MAX_SGL];
ocs_scsi_sgl_t *sgl;
int32_t flags, sgl_count;
ocs_fcport *fcp;
@ -1828,8 +1830,9 @@ ocs_initiator_io(struct ocs_softc *ocs, union ccb *ccb)
csio->ccb_h.ccb_ocs_ptr = ocs;
csio->ccb_h.ccb_io_ptr = io;
sgl = io->sgl;
sgl_count = ocs_build_scsi_sgl(ocs, ccb, io, sgl, ARRAY_SIZE(sgl));
sgl_count = ocs_build_scsi_sgl(ocs, ccb, io, sgl, io->sgl_allocated);
if (sgl_count < 0) {
ocs_scsi_io_free(io);
device_printf(ocs->dev, "%s: building SGL failed\n", __func__);
@ -2068,6 +2071,7 @@ ocs_action(struct cam_sim *sim, union ccb *ccb)
/* Calculate the max IO supported
* Worst case would be an OS page per SGL entry */
cpi->maxio = PAGE_SIZE *
(ocs_scsi_get_property(ocs, OCS_SCSI_MAX_SGL) - 1);

2
sys/dev/ocs_fc/ocs_device.h
View File

@ -55,7 +55,7 @@
* @brief Defines the number of SGLs allocated on each IO object
*/
#ifndef OCS_FC_MAX_SGL
#define OCS_FC_MAX_SGL 128
#define OCS_FC_MAX_SGL 256
#endif
/***************************************************************************