linux-kernel - [PATCH 4.9 002/130] IB/rxe: Increase max number of completions to 32k

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Message-Id: <20170124075535.011514703@linuxfoundation.org>
Date:   Tue, 24 Jan 2017 08:54:02 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Yonatan Cohen <yonatanc@...lanox.com>,
        Moni Shoua <monis@...lanox.com>,
        Leon Romanovsky <leon@...nel.org>,
        Doug Ledford <dledford@...hat.com>
Subject: [PATCH 4.9 002/130] IB/rxe: Increase max number of completions to 32k

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Yonatan Cohen <yonatanc@...lanox.com>

commit d680ebed91e0b45c43ae03a880a0b43211096161 upstream.

Increase limit of max CQE from 8K to 32K to allow demanding
applications to work over SoftRoCE with same configuration
as most RoCEv2 HW vendors have.

Fixes: 8700e3e7c485 ("Soft RoCE driver")
Signed-off-by: Yonatan Cohen <yonatanc@...lanox.com>
Reviewed-by: Moni Shoua <monis@...lanox.com>
Signed-off-by: Leon Romanovsky <leon@...nel.org>
Signed-off-by: Doug Ledford <dledford@...hat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/infiniband/sw/rxe/rxe_param.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/infiniband/sw/rxe/rxe_param.h
+++ b/drivers/infiniband/sw/rxe/rxe_param.h
@@ -82,7 +82,7 @@ enum rxe_device_param {
 	RXE_MAX_SGE			= 32,
 	RXE_MAX_SGE_RD			= 32,
 	RXE_MAX_CQ			= 16384,
-	RXE_MAX_LOG_CQE			= 13,
+	RXE_MAX_LOG_CQE			= 15,
 	RXE_MAX_MR			= 2 * 1024,
 	RXE_MAX_PD			= 0x7ffc,
 	RXE_MAX_QP_RD_ATOM		= 128,