From: Max Gurtovoy <maxg@mellanox.com>
Date: Wed, 15 May 2019 10:49:30 +0000 (+0300)
Subject: RDMA/rw: Add info regarding SG count failure
X-Git-Tag: v5.3-rc1~79^2~182
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=53bfbf9be86e95997d6dfe9dbfd0ffce49339efc;p=thirdparty%2Flinux.git

RDMA/rw: Add info regarding SG count failure

Print the supported and wanted values for SG count during signature
operation.

Signed-off-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
---

diff --git a/drivers/infiniband/core/rw.c b/drivers/infiniband/core/rw.c
index deeaf2b4b273a..acf9ea6258115 100644
--- a/drivers/infiniband/core/rw.c
+++ b/drivers/infiniband/core/rw.c
@@ -357,7 +357,8 @@ int rdma_rw_ctx_signature_init(struct rdma_rw_ctx *ctx, struct ib_qp *qp,
 	int count = 0, ret;
 
 	if (sg_cnt > pages_per_mr || prot_sg_cnt > pages_per_mr) {
-		pr_err("SG count too large\n");
+		pr_err("SG count too large: sg_cnt=%d, prot_sg_cnt=%d, pages_per_mr=%d\n",
+		       sg_cnt, prot_sg_cnt, pages_per_mr);
 		return -EINVAL;
 	}