From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hiral Patel Subject: [PATCH 04/10] fnic: Fix SGEs limit Date: Mon, 10 Dec 2012 01:21:32 -0800 Message-ID: <1355131299-3313-4-git-send-email-hiralpat@cisco.com> References: <1355131299-3313-1-git-send-email-hiralpat@cisco.com> Return-path: Received: from mtv-iport-2.cisco.com ([173.36.130.13]:19633 "EHLO mtv-iport-2.cisco.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753736Ab2LJJ0Y (ORCPT ); Mon, 10 Dec 2012 04:26:24 -0500 In-Reply-To: <1355131299-3313-1-git-send-email-hiralpat@cisco.com> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: linux-scsi@vger.kernel.org Cc: JBottomley@parallels.com, Hiral Patel , Sesidhar Baddela Driver allows IOs with more SGEs than max SGEs supported by Palo. The current max SGEs supported by the fnic driver is 1024. The current register settings on Palo supports a max of 256 only. Palo would return any IO with more than 256 SGEs with an error indicating INVALID_SGLS. Fnic driver should limit the max supported SGLs in the driver to 256 to avoid this error. Signed-off-by: Sesidhar Baddela Signed-off-by: Hiral Patel --- drivers/scsi/fnic/fnic_io.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/fnic/fnic_io.h b/drivers/scsi/fnic/fnic_io.h index f0b8969..3455c34 100644 --- a/drivers/scsi/fnic/fnic_io.h +++ b/drivers/scsi/fnic/fnic_io.h @@ -21,7 +21,7 @@ #include #define FNIC_DFLT_SG_DESC_CNT 32 -#define FNIC_MAX_SG_DESC_CNT 1024 /* Maximum descriptors per sgl */ +#define FNIC_MAX_SG_DESC_CNT 256 /* Maximum descriptors per sgl */ #define FNIC_SG_DESC_ALIGN 16 /* Descriptor address alignment */ struct host_sg_desc { -- 1.7.9.5