diff options
Diffstat (limited to 'package/kernel/mac80211/patches/ath11k/903-ath11k-support-setting-FW-memory-mode-via-DT.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/ath11k/903-ath11k-support-setting-FW-memory-mode-via-DT.patch | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/ath11k/903-ath11k-support-setting-FW-memory-mode-via-DT.patch b/package/kernel/mac80211/patches/ath11k/903-ath11k-support-setting-FW-memory-mode-via-DT.patch new file mode 100644 index 0000000000..c854de586a --- /dev/null +++ b/package/kernel/mac80211/patches/ath11k/903-ath11k-support-setting-FW-memory-mode-via-DT.patch @@ -0,0 +1,74 @@ +From fb1c40c225cbc413d82c872dd8c8af3469b2b921 Mon Sep 17 00:00:00 2001 +From: Robert Marko <robimarko@gmail.com> +Date: Fri, 16 Dec 2022 17:17:52 +0100 +Subject: [PATCH] ath11k: support setting FW memory mode via DT + +ath11k is really memory intensive for devices with less that 1GB of RAM, +so lets allow saving a significant amount of memory by setting the FW to +Mode-1 via DTS for devices that need it. + +However the drawback is reduced number of VDEV-s and peers which is a +reasonable tradeoff. + +Mode-2 allows for further reduction, but it has further restrictions. + +While we are here, lets add a print to be able to easily determine what +FW memory mode is being used. + +Signed-off-by: Robert Marko <robimarko@gmail.com> +--- + drivers/net/wireless/ath/ath11k/core.c | 28 ++++++++++++++++++++++++-- + 1 file changed, 26 insertions(+), 2 deletions(-) + +--- a/drivers/net/wireless/ath/ath11k/core.c ++++ b/drivers/net/wireless/ath/ath11k/core.c +@@ -32,7 +32,7 @@ module_param_named(frame_mode, ath11k_fr + MODULE_PARM_DESC(frame_mode, + "Datapath frame mode (0: raw, 1: native wifi (default), 2: ethernet)"); + +-static const struct ath11k_hw_params ath11k_hw_params[] = { ++static struct ath11k_hw_params ath11k_hw_params[] = { + { + .hw_rev = ATH11K_HW_IPQ8074, + .name = "ipq8074 hw2.0", +@@ -1826,7 +1826,8 @@ static void ath11k_core_reset(struct wor + static int ath11k_init_hw_params(struct ath11k_base *ab) + { + const struct ath11k_hw_params *hw_params = NULL; +- int i; ++ u32 fw_mem_mode; ++ int i, ret; + + for (i = 0; i < ARRAY_SIZE(ath11k_hw_params); i++) { + hw_params = &ath11k_hw_params[i]; +@@ -1842,7 +1843,30 @@ static int ath11k_init_hw_params(struct + + ab->hw_params = *hw_params; + ++ ret = of_property_read_u32(ab->dev->of_node, ++ "qcom,ath11k-fw-memory-mode", ++ &fw_mem_mode); ++ if (!ret) { ++ if (fw_mem_mode == 0) { ++ ab->hw_params.fw_mem_mode = 0; ++ ab->hw_params.num_vdevs = 16 + 1; ++ ab->hw_params.num_peers = 512; ++ } ++ else if (fw_mem_mode == 1) { ++ ab->hw_params.fw_mem_mode = 1; ++ ab->hw_params.num_vdevs = 8; ++ ab->hw_params.num_peers = 128; ++ } else if (fw_mem_mode == 2) { ++ ab->hw_params.fw_mem_mode = 2; ++ ab->hw_params.num_vdevs = 8; ++ ab->hw_params.num_peers = 128; ++ ab->hw_params.cold_boot_calib = false; ++ } else ++ ath11k_info(ab, "Unsupported FW memory mode: %u\n", fw_mem_mode); ++ } ++ + ath11k_info(ab, "%s\n", ab->hw_params.name); ++ ath11k_info(ab, "FW memory mode: %d\n", ab->hw_params.fw_mem_mode); + + return 0; + } |