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build/patch/kernel/archive/sunxi-5.15/patches.cypress/0094-brcmfmac-Set-SDIO-workqueue-as-WQ_HIGHPRI.patch

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From 20768a08b77ba4ceaa6094a7bbca7973599b19dc Mon Sep 17 00:00:00 2001
From: Sean Anderson <sean.anderson@seco.com>
Date: Mon, 2 Aug 2021 13:09:04 -0400
Subject: [PATCH 094/179] brcmfmac: Set SDIO workqueue as WQ_HIGHPRI
commit 41b637bac0b0a90424793aa1ec265b24c4c50fb1 upstream.
This puts tasks submitted to the SDIO workqueue at the head of the queue
and runs them immediately. This gets higher RX throughput with the SDIO
bus.
This was originally submitted as [1]. The original author Wright Feng
reports
> throughput result with 43455(11ac) on 1 core 1.6 Ghz platform is
> Without WQ_HIGGPRI TX/RX: 293/301 (mbps)
> With WQ_HIGHPRI TX/RX: 293/321 (mbps)
I tested this with a 43364(11bgn) on a 1 core 800 MHz platform and got
Without WQ_HIGHPRI TX/RX: 16/19 (Mbits/sec)
With WQ_HIGHPRI TX/RX: 24/20 (MBits/sec)
[1] https://lore.kernel.org/linux-wireless/1584604406-15452-4-git-send-email-wright.feng@cypress.com/
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Reviewed-by: Arend van Spriel <aspriel@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210802170904.3116223-1-sean.anderson@seco.com
---
drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
index b134a72e2f1f..7e0aeb1434fd 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
@@ -4764,7 +4764,7 @@ struct brcmf_sdio *brcmf_sdio_probe(struct brcmf_sdio_dev *sdiodev)
bus->tx_seq = SDPCM_SEQ_WRAP - 1;
/* single-threaded workqueue */
- wq = alloc_ordered_workqueue("brcmf_wq/%s", WQ_MEM_RECLAIM,
+ wq = alloc_ordered_workqueue("brcmf_wq/%s", WQ_MEM_RECLAIM | WQ_HIGHPRI,
dev_name(&sdiodev->func1->dev));
if (!wq) {
brcmf_err("insufficient memory to create txworkqueue\n");
--
2.17.1