This is a note to let you know that I've just added the patch titled
RDMA/erdma: Update default EQ depth to 4096 and max_send_wr to 8192
to the 6.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
rdma-erdma-update-default-eq-depth-to-4096-and-max_s.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit bbf29f46c05babea2db7d80d6e4a9a4c72341b8a
Author: Cheng Xu <chengyou@xxxxxxxxxxxxxxxxx>
Date: Mon Mar 20 16:46:50 2023 +0800
RDMA/erdma: Update default EQ depth to 4096 and max_send_wr to 8192
[ Upstream commit 6256aa9ae955d10ec73a434533ca62034eff1b76 ]
Max EQ depth of hardware is 32K, the current default EQ depth is too small
for some applications, so change the default depth to 4096.
Max send WRs the hardware can support is 8K, but the driver limits the
value to 4K. Remove this limitation.
Fixes: be3cff0f242d ("RDMA/erdma: Add the hardware related definitions")
Fixes: db23ae64caac ("RDMA/erdma: Add verbs header file")
Signed-off-by: Cheng Xu <chengyou@xxxxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20230320084652.16807-3-chengyou@xxxxxxxxxxxxxxxxx
Signed-off-by: Leon Romanovsky <leon@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/infiniband/hw/erdma/erdma_hw.h b/drivers/infiniband/hw/erdma/erdma_hw.h
index e788887732e1f..c533c693e5e38 100644
--- a/drivers/infiniband/hw/erdma/erdma_hw.h
+++ b/drivers/infiniband/hw/erdma/erdma_hw.h
@@ -420,7 +420,7 @@ struct erdma_reg_mr_sqe {
};
/* EQ related. */
-#define ERDMA_DEFAULT_EQ_DEPTH 256
+#define ERDMA_DEFAULT_EQ_DEPTH 4096
/* ceqe */
#define ERDMA_CEQE_HDR_DB_MASK BIT_ULL(63)
diff --git a/drivers/infiniband/hw/erdma/erdma_verbs.h b/drivers/infiniband/hw/erdma/erdma_verbs.h
index ab6380635e9e6..eabab8bba95af 100644
--- a/drivers/infiniband/hw/erdma/erdma_verbs.h
+++ b/drivers/infiniband/hw/erdma/erdma_verbs.h
@@ -11,7 +11,7 @@
/* RDMA Capability. */
#define ERDMA_MAX_PD (128 * 1024)
-#define ERDMA_MAX_SEND_WR 4096
+#define ERDMA_MAX_SEND_WR 8192
#define ERDMA_MAX_ORD 128
#define ERDMA_MAX_IRD 128
#define ERDMA_MAX_SGE_RD 1
