IB/srp: Allow sg_tablesize to be adjusted
Make the sg_tablesize used by SRP adjustable at module load time via a
module parameter. Calculate the corresponding IU length required to
support this.
Signed-off-by: Vu Pham <vu@mellanox.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
diff --git a/drivers/infiniband/ulp/srp/ib_srp.h b/drivers/infiniband/ulp/srp/ib_srp.h
index c071c30..033a447 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.h
+++ b/drivers/infiniband/ulp/srp/ib_srp.h
@@ -56,7 +56,7 @@
SRP_DLID_REDIRECT = 2,
SRP_MAX_LUN = 512,
- SRP_MAX_IU_LEN = 256,
+ SRP_DEF_SG_TABLESIZE = 12,
SRP_RQ_SHIFT = 6,
SRP_RQ_SIZE = 1 << SRP_RQ_SHIFT,
@@ -71,9 +71,6 @@
};
#define SRP_OP_RECV (1 << 31)
-#define SRP_MAX_INDIRECT ((SRP_MAX_IU_LEN - \
- sizeof (struct srp_cmd) - \
- sizeof (struct srp_indirect_buf)) / 16)
enum srp_target_state {
SRP_TARGET_LIVE,