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Wright Feng authored
The 4329 throughput drops from 40.2 Mbits/sec to 190 Kbits/sec in 2G 11n mode because the commit b41c232d ("brcmfmac: reserve 2 credits for host tx control path"). To fix the issue, host driver only reserves tx control credit when there is a txctl frame is pending to send. And we also check available credit by using "not equal to 0" instead of "greater than 0" because tx_max and tx_seq are circled positive numbers. Reported-by:
Dmitry Osipenko <digetx@gmail.com> Fixes: b41c232d ("brcmfmac: reserve 2 credits for host tx control path") Signed-off-by:
Wright Feng <wright.feng@cypress.com> Tested-by:
Dmitry Osipenko <digetx@gmail.com> Signed-off-by:
Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200813070017.89023-1-wright.feng@cypress.com
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