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atheros813x: apply fix from OpenBSD

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* https://github.com/openbsd/src/commit/10fd7e381796b38e2a5ec6e1ecb7faaf1087fa13
"Force maximum payload size to 128 bytes for AR816X/AR817x as it triggers"
* could help for #16978

Change-Id: I626e364adcabaa9b3d7e4c1078067c1d82c7d4e3
Reviewed-on: https://review.haiku-os.org/c/haiku/+/5340
Tested-by: Commit checker robot <[email protected]>
Reviewed-by: waddlesplash <[email protected]>
This commit is contained in:
Jérôme Duval
2022-06-01 20:11:00 +00:00
committed by waddlesplash
parent 748b488347
commit 6ba3c443a2
1 changed files with 3 additions and 2 deletions
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src/add-ons/kernel/drivers/network/ether/atheros813x/dev/alc/if_alc.c
+3 -2
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@@ -1495,10 +1495,11 @@ alc_attach(device_t dev)
sc->alc_dma_wr_burst = 3; sc->alc_dma_wr_burst = 3;
/* /*
* Force maximum payload size to 128 bytes for * Force maximum payload size to 128 bytes for
* E2200/E2400/E2500. * E2200/E2400/E2500/AR8162/AR8171/AR8172.
* Otherwise it triggers DMA write error. * Otherwise it triggers DMA write error.
*/ */
if ((sc->alc_flags & ALC_FLAG_E2X00) != 0) if ((sc->alc_flags &
(ALC_FLAG_E2X00 | ALC_FLAG_AR816X_FAMILY)) != 0)
sc->alc_dma_wr_burst = 0; sc->alc_dma_wr_burst = 0;
alc_init_pcie(sc); alc_init_pcie(sc);
} }