From: Ajay Sharma <sharmaajay@microsoft.com>
Date: Thu, 3 Nov 2022 12:16:22 -0700
Subject: net: mana: Set the DMA device max segment size
Patch-mainline: v6.2-rc1
Git-commit: 6fe254160bd033a1e62dbad9b734183b31144678
References: bsc#1210741 jsc#PED-4022
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>
Reviewed-by: Dexuan Cui <decui@microsoft.com>
Signed-off-by: Long Li <longli@microsoft.com>
Link: https://lore.kernel.org/r/1667502990-2559-5-git-send-email-longli@linuxonhyperv.com
Acked-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/net/ethernet/microsoft/mana/gdma_main.c | 6 ++++++
1 file changed, 6 insertions(+)
--- a/drivers/net/ethernet/microsoft/mana/gdma_main.c
+++ b/drivers/net/ethernet/microsoft/mana/gdma_main.c
@@ -1396,6 +1396,12 @@ static int mana_gd_probe(struct pci_dev
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)