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From: longli@linuxonhyperv.com
To: "K. Y. Srinivasan" <kys@microsoft.com>,
	Haiyang Zhang <haiyangz@microsoft.com>,
	Stephen Hemminger <sthemmin@microsoft.com>,
	Wei Liu <wei.liu@kernel.org>, Dexuan Cui <decui@microsoft.com>,
	"David S. Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	Jason Gunthorpe <jgg@ziepe.ca>, Leon Romanovsky <leon@kernel.org>,
	edumazet@google.com, shiraz.saleem@intel.com,
	Ajay Sharma <sharmaajay@microsoft.com>
Cc: linux-hyperv@vger.kernel.org, netdev@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org,
	Long Li <longli@microsoft.com>
Subject: [Patch v4 05/12] net: mana: Set the DMA device max segment size
Date: Wed, 15 Jun 2022 19:07:13 -0700	[thread overview]
Message-ID: <1655345240-26411-6-git-send-email-longli@linuxonhyperv.com> (raw)
In-Reply-To: <1655345240-26411-1-git-send-email-longli@linuxonhyperv.com>

From: Ajay Sharma <sharmaajay@microsoft.com>

MANA hardware doesn't have any restrictions on the DMA segment size, set it
to the max allowed value.

Signed-off-by: Ajay Sharma <sharmaajay@microsoft.com>
Signed-off-by: Long Li <longli@microsoft.com>
---
Change log:
v2: Use the max allowed value as the hardware doesn't have any limit

 drivers/net/ethernet/microsoft/mana/gdma_main.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/ethernet/microsoft/mana/gdma_main.c b/drivers/net/ethernet/microsoft/mana/gdma_main.c
index 7b42b78b7ddf..0c38c9a539f9 100644
--- a/drivers/net/ethernet/microsoft/mana/gdma_main.c
+++ b/drivers/net/ethernet/microsoft/mana/gdma_main.c
@@ -1387,6 +1387,12 @@ static int mana_gd_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (err)
 		goto release_region;
 
+	err = dma_set_max_seg_size(&pdev->dev, UINT_MAX);
+	if (err) {
+		dev_err(&pdev->dev, "Failed to set dma device segment size\n");
+		goto release_region;
+	}
+
 	err = -ENOMEM;
 	gc = vzalloc(sizeof(*gc));
 	if (!gc)
-- 
2.17.1


  parent reply	other threads:[~2022-06-16  2:07 UTC|newest]

Thread overview: 56+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-16  2:07 [Patch v4 00/12] Introduce Microsoft Azure Network Adapter (MANA) RDMA driver longli
2022-06-16  2:07 ` [Patch v4 01/12] net: mana: Add support for auxiliary device longli
2022-07-11  1:08   ` Dexuan Cui
2022-07-12 18:26     ` Long Li
2022-06-16  2:07 ` [Patch v4 02/12] net: mana: Record the physical address for doorbell page region longli
2022-07-11  1:09   ` Dexuan Cui
2022-06-16  2:07 ` [Patch v4 03/12] net: mana: Handle vport sharing between devices longli
2022-07-11  1:13   ` Dexuan Cui
2022-07-12 18:48     ` Long Li
2022-07-20 23:42       ` Jason Gunthorpe
2022-07-21  0:06         ` Long Li
2022-07-21 14:38           ` Jason Gunthorpe
2022-07-21 17:58             ` Long Li
2022-07-21 18:32               ` Jason Gunthorpe
2022-07-29 18:44                 ` Long Li
2022-07-29 19:12                   ` Jason Gunthorpe
2022-07-29 21:20                     ` Long Li
2022-08-02 18:08                       ` Jason Gunthorpe
2022-08-03  2:08                         ` Long Li
2022-06-16  2:07 ` [Patch v4 04/12] net: mana: Add functions for allocating doorbell page from GDMA longli
2022-07-11  1:13   ` Dexuan Cui
2022-07-12 18:48     ` Long Li
2022-07-20 23:42     ` Jason Gunthorpe
2022-06-16  2:07 ` longli [this message]
2022-07-11  1:14   ` [Patch v4 05/12] net: mana: Set the DMA device max segment size Dexuan Cui
2022-06-16  2:07 ` [Patch v4 06/12] net: mana: Define data structures for protection domain and memory registration longli
2022-07-11  1:29   ` Dexuan Cui
2022-07-13  4:39     ` Ajay Sharma
2022-07-13  7:22       ` Dexuan Cui
2022-07-20 23:43     ` Jason Gunthorpe
2022-07-21  0:15       ` Long Li
2022-06-16  2:07 ` [Patch v4 07/12] net: mana: Export Work Queue functions for use by RDMA driver longli
2022-07-11  1:31   ` Dexuan Cui
2022-07-12 18:54     ` Long Li
2022-06-16  2:07 ` [Patch v4 08/12] net: mana: Record port number in netdev longli
2022-07-11  1:31   ` Dexuan Cui
2022-06-16  2:07 ` [Patch v4 09/12] net: mana: Move header files to a common location longli
2022-07-11  1:32   ` Dexuan Cui
2022-06-16  2:07 ` [Patch v4 10/12] net: mana: Define max values for SGL entries longli
2022-07-11  1:32   ` Dexuan Cui
2022-07-12 18:56     ` Long Li
2022-06-16  2:07 ` [Patch v4 11/12] net: mana: Define and process GDMA response code GDMA_STATUS_MORE_ENTRIES longli
2022-07-11  1:32   ` Dexuan Cui
2022-06-16  2:07 ` [Patch v4 12/12] RDMA/mana_ib: Add a driver for Microsoft Azure Network Adapter longli
2022-06-25  4:20   ` [EXTERNAL] " Ajay Sharma
2022-06-26  0:03     ` Jason Gunthorpe
2022-07-11  1:42   ` Dexuan Cui
2022-07-13  4:32     ` Ajay Sharma
2022-07-13  7:36       ` Dexuan Cui
2022-07-12 19:14   ` Greg KH
2022-07-12 23:46     ` Long Li
2022-07-13  6:14       ` Greg KH
2022-07-20 23:49   ` Jason Gunthorpe
2022-07-21 19:24     ` [EXTERNAL] " Ajay Sharma
2022-07-21  9:17   ` Cheng Xu
2022-07-21 18:01     ` Long Li

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