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wifi: ath11k: Fix QCN9074 firmware boot on x86
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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 f6f9296, 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.

Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.7.0.1-01744-QCAHKSWPL_SILICONZ-1
Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.5.0.1-01208-QCAHKSWPL_SILICONZ-1
Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.16

Signed-off-by: Tyler J. Stachecki <stachecki.tyler@gmail.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20221022042728.43015-1-stachecki.tyler@gmail.com
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Tyler J. Stachecki authored and Kalle Valo committed Nov 2, 2022
1 parent 30ac96f commit 3a89b6d
Showing 1 changed file with 1 addition and 1 deletion.
2 changes: 1 addition & 1 deletion drivers/net/wireless/ath/ath11k/qmi.h
Original file line number Diff line number Diff line change
Expand Up @@ -27,7 +27,7 @@
#define ATH11K_QMI_WLANFW_MAX_NUM_MEM_SEG_V01 52
#define ATH11K_QMI_CALDB_SIZE 0x480000
#define ATH11K_QMI_BDF_EXT_STR_LENGTH 0x20
#define ATH11K_QMI_FW_MEM_REQ_SEGMENT_CNT 3
#define ATH11K_QMI_FW_MEM_REQ_SEGMENT_CNT 5

#define QMI_WLFW_REQUEST_MEM_IND_V01 0x0035
#define QMI_WLFW_FW_MEM_READY_IND_V01 0x0037
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