On Tue, Nov 1, 2022 at 10:46 AM Kalle Valo <kvalo@xxxxxxxxxx> wrote: > > "Tyler J. Stachecki" <stachecki.tyler@xxxxxxxxx> writes: > > > The 2.7.0 series of QCN9074's firmware requests 5 segments > > of memory instead of 3 (as in the 2.5.0 series). > > > > The first segment (11M) is too large to be kalloc'd in one > > go on x86 and requires piecemeal 1MB allocations, as was > > the case with the prior public firmware (2.5.0, 15M). > > > > Since f6f92968e1e5, ath11k will break the memory requests, > > but only if there were fewer than 3 segments requested by > > the firmware. It seems that 5 segments works fine and > > allows QCN9074 to boot on x86 with firmware 2.7.0, so > > change things accordingly. > > > > Signed-off-by: Tyler J. Stachecki <stachecki.tyler@xxxxxxxxx> > > Ouch, that's pretty bad. Thanks for fixing this! > > Does the 2.5.0.1 firmware branch still work with this patch? It's > important that we don't break the old firmware. > > -- > https://patchwork.kernel.org/project/linux-wireless/list/ > > https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches Yep, tested the patch with all 3 combinations, below: QCN9074: WLAN.HK.2.7.0.1-01744-QCAHKSWPL_SILICONZ-1 WLAN.HK.2.5.0.1-01208-QCAHKSWPL_SILICONZ-1 WCN6855: WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.16
