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Message-Id: <1661906071-29508-6-git-send-email-longli@linuxonhyperv.com> Date: Tue, 30 Aug 2022 17:34:24 -0700 From: longli@...uxonhyperv.com To: "K. Y. Srinivasan" <kys@...rosoft.com>, Haiyang Zhang <haiyangz@...rosoft.com>, Stephen Hemminger <sthemmin@...rosoft.com>, Wei Liu <wei.liu@...nel.org>, Dexuan Cui <decui@...rosoft.com>, "David S. Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, Jason Gunthorpe <jgg@...pe.ca>, Leon Romanovsky <leon@...nel.org>, edumazet@...gle.com, shiraz.saleem@...el.com, Ajay Sharma <sharmaajay@...rosoft.com> Cc: linux-hyperv@...r.kernel.org, netdev@...r.kernel.org, linux-kernel@...r.kernel.org, linux-rdma@...r.kernel.org, Long Li <longli@...rosoft.com> Subject: [Patch v5 05/12] net: mana: Set the DMA device max segment size From: Ajay Sharma <sharmaajay@...rosoft.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@...rosoft.com> Reviewed-by: Dexuan Cui <decui@...rosoft.com> Signed-off-by: Long Li <longli@...rosoft.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 3c391b0cfab4..9a1885e47766 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
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