From 53bfbf9be86e95997d6dfe9dbfd0ffce49339efc Mon Sep 17 00:00:00 2001 From: Max Gurtovoy Date: Wed, 15 May 2019 13:49:30 +0300 Subject: [PATCH] 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 Reviewed-by: Christoph Hellwig Signed-off-by: Jason Gunthorpe --- drivers/infiniband/core/rw.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/infiniband/core/rw.c b/drivers/infiniband/core/rw.c index deeaf2b4b273..acf9ea625811 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; } -- 2.30.2