From patchwork Wed Jan 11 09:25:47 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kalle Valo X-Patchwork-Id: 13096322 X-Patchwork-Delegate: kvalo@adurom.com Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5688FC5479D for ; Wed, 11 Jan 2023 09:27:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238516AbjAKJ1M (ORCPT ); Wed, 11 Jan 2023 04:27:12 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57560 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232109AbjAKJ0f (ORCPT ); Wed, 11 Jan 2023 04:26:35 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 87C2925E8 for ; Wed, 11 Jan 2023 01:25:57 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id B118C61B20 for ; Wed, 11 Jan 2023 09:25:56 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3BFC2C433F0; Wed, 11 Jan 2023 09:25:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1673429156; bh=iFqaVaUVSgL+RoyLHQbKsk59eVn3jEGgiMEsBlPomgU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=h4EZ7otWXhA+ufc6rcZHdgwsVSHnGZOxARup305TIsRJ+l8E0hUmIYpn0TJc9YRtJ HXmuWP+d0DCf+xW9E59tQR6XUFw+DvyGFxbvvDwChWn0huwlKAjqRFbKrxH5v0Mq1E gHvEVoX820kxfNnYVvALOac6H8nbgu0IoyfWwK6Tshl4vw8jA4yFuqJaOald4CbIck Y9PtuEaMmFQbDJS5WMQyCIN5A88kSuI00KRMr67ZpEgR6hYVELlTx+VKoPdsgn8YS9 a/JMatzRBIp+jUI5oMmtsQo42/nsRRVoVlhEfDg9hRGGOjcoGfqhNtgdxe1DUBZzo2 SF8mhYtDipp+w== From: Kalle Valo To: mhi@lists.linux.dev Cc: ath11k@lists.infradead.org, linux-wireless@vger.kernel.org Subject: [PATCH 3/3] ath11k: add firmware-2.bin support Date: Wed, 11 Jan 2023 11:25:47 +0200 Message-Id: <20230111092547.21425-4-kvalo@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20230111092547.21425-1-kvalo@kernel.org> References: <20230111092547.21425-1-kvalo@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Anilkumar Kolli Firmware IE containers can dynamically provide various information what firmware supports. Also it can embed more than one image so updating firmware is easy, user just needs to update one file in /lib/firmware/. The firmware API 2 or higher will use the IE container format, the current API 1 will not use the new format but it still is supported for some time. Firmware API 2 files are named as firmware-2.bin (which contains both amss.bin and m3.bin images) and API 1 files are amss.bin and m3.bin. Currently ath11k PCI driver provides firmware binary (amss.bin) path to MHI driver, MHI driver reads firmware from filesystem and boots it. Add provision to read firmware files from ath11k driver and provide the amss.bin firmware data and size to MHI using a pointer. Currently enum ath11k_fw_features is empty, the patches adding features will add the flags. With AHB devices there's no amss.bin or m3.bin, so no changes in how AHB firmware files are used. But AHB devices can use future additions to the meta data, for example in enum ath11k_fw_features. Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.9 Co-developed-by: P Praneesh Signed-off-by: P Praneesh Signed-off-by: Anilkumar Kolli Co-developed-by: Kalle Valo Signed-off-by: Kalle Valo --- drivers/net/wireless/ath/ath11k/Makefile | 3 +- drivers/net/wireless/ath/ath11k/core.c | 8 ++ drivers/net/wireless/ath/ath11k/core.h | 15 +++ drivers/net/wireless/ath/ath11k/fw.c | 157 +++++++++++++++++++++++ drivers/net/wireless/ath/ath11k/fw.h | 27 ++++ drivers/net/wireless/ath/ath11k/mhi.c | 18 ++- drivers/net/wireless/ath/ath11k/qmi.c | 36 ++++-- 7 files changed, 247 insertions(+), 17 deletions(-) create mode 100644 drivers/net/wireless/ath/ath11k/fw.c create mode 100644 drivers/net/wireless/ath/ath11k/fw.h diff --git a/drivers/net/wireless/ath/ath11k/Makefile b/drivers/net/wireless/ath/ath11k/Makefile index cc47e0114595..2c94d50ae36f 100644 --- a/drivers/net/wireless/ath/ath11k/Makefile +++ b/drivers/net/wireless/ath/ath11k/Makefile @@ -17,7 +17,8 @@ ath11k-y += core.o \ peer.o \ dbring.o \ hw.o \ - pcic.o + pcic.o \ + fw.o ath11k-$(CONFIG_ATH11K_DEBUGFS) += debugfs.o debugfs_htt_stats.o debugfs_sta.o ath11k-$(CONFIG_NL80211_TESTMODE) += testmode.o diff --git a/drivers/net/wireless/ath/ath11k/core.c b/drivers/net/wireless/ath/ath11k/core.c index 498310e38d44..61ed3adcfd70 100644 --- a/drivers/net/wireless/ath/ath11k/core.c +++ b/drivers/net/wireless/ath/ath11k/core.c @@ -16,6 +16,7 @@ #include "debug.h" #include "hif.h" #include "wow.h" +#include "fw.h" unsigned int ath11k_debug_mask; EXPORT_SYMBOL(ath11k_debug_mask); @@ -1942,6 +1943,12 @@ int ath11k_core_pre_init(struct ath11k_base *ab) return ret; } + ret = ath11k_fw_pre_init(ab); + if (ret) { + ath11k_err(ab, "failed to pre init firmware: %d", ret); + return ret; + } + return 0; } EXPORT_SYMBOL(ath11k_core_pre_init); @@ -1972,6 +1979,7 @@ void ath11k_core_deinit(struct ath11k_base *ab) ath11k_hif_power_down(ab); ath11k_mac_destroy(ab); ath11k_core_soc_destroy(ab); + ath11k_fw_destroy(ab); } EXPORT_SYMBOL(ath11k_core_deinit); diff --git a/drivers/net/wireless/ath/ath11k/core.h b/drivers/net/wireless/ath/ath11k/core.h index beb552108ac3..75cdedd268d4 100644 --- a/drivers/net/wireless/ath/ath11k/core.h +++ b/drivers/net/wireless/ath/ath11k/core.h @@ -15,6 +15,8 @@ #include #include #include +#include + #include "qmi.h" #include "htc.h" #include "wmi.h" @@ -29,6 +31,7 @@ #include "dbring.h" #include "spectral.h" #include "wow.h" +#include "fw.h" #define SM(_v, _f) (((_v) << _f##_LSB) & _f##_MASK) @@ -977,6 +980,18 @@ struct ath11k_base { const struct ath11k_pci_ops *ops; } pci; + struct { + u32 api_version; + + const struct firmware *fw; + const u8 *amss_data; + size_t amss_len; + const u8 *m3_data; + size_t m3_len; + + DECLARE_BITMAP(fw_features, ATH11K_FW_FEATURE_COUNT); + } fw; + /* must be last */ u8 drv_priv[] __aligned(sizeof(void *)); }; diff --git a/drivers/net/wireless/ath/ath11k/fw.c b/drivers/net/wireless/ath/ath11k/fw.c new file mode 100644 index 000000000000..339b2b3bed84 --- /dev/null +++ b/drivers/net/wireless/ath/ath11k/fw.c @@ -0,0 +1,157 @@ +// SPDX-License-Identifier: BSD-3-Clause-Clear +/* + * Copyright (c) 2022, Qualcomm Innovation Center, Inc. All rights reserved. + */ + +#include "core.h" + +#include "debug.h" + +static int ath11k_fw_request_firmware_api_n(struct ath11k_base *ab, + const char *name) +{ + size_t magic_len, len, ie_len; + int ie_id, i, index, bit, ret; + struct ath11k_fw_ie *hdr; + const u8 *data; + __le32 *timestamp; + + ab->fw.fw = ath11k_core_firmware_request(ab, name); + if (IS_ERR(ab->fw.fw)) { + ret = PTR_ERR(ab->fw.fw); + ath11k_err(ab, "failed to load %s: %d\n", name, ret); + ab->fw.fw = NULL; + return ret; + } + + data = ab->fw.fw->data; + len = ab->fw.fw->size; + + /* magic also includes the null byte, check that as well */ + magic_len = strlen(ATH11K_FIRMWARE_MAGIC) + 1; + + if (len < magic_len) { + ath11k_err(ab, "firmware image too small to contain magic: %zu\n", + len); + ret = -EINVAL; + goto err; + } + + if (memcmp(data, ATH11K_FIRMWARE_MAGIC, magic_len) != 0) { + ath11k_err(ab, "Invalid firmware magic\n"); + ret = -EINVAL; + goto err; + } + + /* jump over the padding */ + magic_len = ALIGN(magic_len, 4); + + len -= magic_len; + data += magic_len; + + /* loop elements */ + while (len > sizeof(struct ath11k_fw_ie)) { + hdr = (struct ath11k_fw_ie *)data; + + ie_id = le32_to_cpu(hdr->id); + ie_len = le32_to_cpu(hdr->len); + + len -= sizeof(*hdr); + data += sizeof(*hdr); + + if (len < ie_len) { + ath11k_err(ab, "Invalid length for FW IE %d (%zu < %zu)\n", + ie_id, len, ie_len); + ret = -EINVAL; + goto err; + } + + switch (ie_id) { + case ATH11K_FW_IE_TIMESTAMP: + if (ie_len != sizeof(u32)) + break; + + timestamp = (__le32 *)data; + + ath11k_dbg(ab, ATH11K_DBG_BOOT, "found fw timestamp %d\n", + le32_to_cpup(timestamp)); + break; + case ATH11K_FW_IE_FEATURES: + ath11k_dbg(ab, ATH11K_DBG_BOOT, + "found firmware features ie (%zd B)\n", + ie_len); + + for (i = 0; i < ATH11K_FW_FEATURE_COUNT; i++) { + index = i / 8; + bit = i % 8; + + if (index == ie_len) + break; + + if (data[index] & (1 << bit)) + __set_bit(i, ab->fw.fw_features); + } + + ath11k_dbg_dump(ab, ATH11K_DBG_BOOT, "features", "", + ab->fw.fw_features, + sizeof(ab->fw.fw_features)); + break; + case ATH11K_FW_IE_AMSS_IMAGE: + ath11k_dbg(ab, ATH11K_DBG_BOOT, + "found fw image ie (%zd B)\n", + ie_len); + + ab->fw.amss_data = data; + ab->fw.amss_len = ie_len; + break; + case ATH11K_FW_IE_M3_IMAGE: + ath11k_dbg(ab, ATH11K_DBG_BOOT, + "found m3 image ie (%zd B)\n", + ie_len); + + ab->fw.m3_data = data; + ab->fw.m3_len = ie_len; + break; + default: + ath11k_warn(ab, "Unknown FW IE: %u\n", ie_id); + break; + } + + /* jump over the padding */ + ie_len = ALIGN(ie_len, 4); + + len -= ie_len; + data += ie_len; + }; + + return 0; + +err: + release_firmware(ab->fw.fw); + ab->fw.fw = NULL; + return ret; +} + +int ath11k_fw_pre_init(struct ath11k_base *ab) +{ + int ret; + + ret = ath11k_fw_request_firmware_api_n(ab, ATH11K_FW_API2_FILE); + if (ret == 0) { + ab->fw.api_version = 2; + goto out; + } + + ab->fw.api_version = 1; + +out: + ath11k_dbg(ab, ATH11K_DBG_BOOT, "using fw api %d\n", + ab->fw.api_version); + + return 0; +} + +void ath11k_fw_destroy(struct ath11k_base *ab) +{ + release_firmware(ab->fw.fw); +} diff --git a/drivers/net/wireless/ath/ath11k/fw.h b/drivers/net/wireless/ath/ath11k/fw.h new file mode 100644 index 000000000000..e33b0f78b571 --- /dev/null +++ b/drivers/net/wireless/ath/ath11k/fw.h @@ -0,0 +1,27 @@ +/* SPDX-License-Identifier: BSD-3-Clause-Clear */ +/* + * Copyright (c) 2022, Qualcomm Innovation Center, Inc. All rights reserved. + */ + +#ifndef ATH11K_FW_H +#define ATH11K_FW_H + +#define ATH11K_FW_API2_FILE "firmware-2.bin" +#define ATH11K_FIRMWARE_MAGIC "QCOM-ATH11K-FW" + +enum ath11k_fw_ie_type { + ATH11K_FW_IE_TIMESTAMP = 0, + ATH11K_FW_IE_FEATURES = 1, + ATH11K_FW_IE_AMSS_IMAGE = 2, + ATH11K_FW_IE_M3_IMAGE = 3, +}; + +enum ath11k_fw_features { + /* keep last */ + ATH11K_FW_FEATURE_COUNT, +}; + +int ath11k_fw_pre_init(struct ath11k_base *ab); +void ath11k_fw_destroy(struct ath11k_base *ab); + +#endif /* ATH11K_FW_H */ diff --git a/drivers/net/wireless/ath/ath11k/mhi.c b/drivers/net/wireless/ath/ath11k/mhi.c index 86995e8dc913..40c43f63ebdd 100644 --- a/drivers/net/wireless/ath/ath11k/mhi.c +++ b/drivers/net/wireless/ath/ath11k/mhi.c @@ -6,6 +6,7 @@ #include #include +#include #include #include #include @@ -389,16 +390,23 @@ int ath11k_mhi_register(struct ath11k_pci *ab_pci) if (!mhi_ctrl) return -ENOMEM; - ath11k_core_create_firmware_path(ab, ATH11K_AMSS_FILE, - ab_pci->amss_path, - sizeof(ab_pci->amss_path)); - ab_pci->mhi_ctrl = mhi_ctrl; mhi_ctrl->cntrl_dev = ab->dev; - mhi_ctrl->fw_image = ab_pci->amss_path; mhi_ctrl->regs = ab->mem; mhi_ctrl->reg_len = ab->mem_len; + if (ab->fw.amss_data && ab->fw.amss_len > 0) { + /* use MHI firmware file from firmware-N.bin */ + mhi_ctrl->fw_data = ab->fw.amss_data; + mhi_ctrl->fw_sz = ab->fw.amss_len; + } else { + /* use the old separate mhi.bin MHI firmware file */ + ath11k_core_create_firmware_path(ab, ATH11K_AMSS_FILE, + ab_pci->amss_path, + sizeof(ab_pci->amss_path)); + mhi_ctrl->fw_image = ab_pci->amss_path; + } + ret = ath11k_mhi_get_msi(ab_pci); if (ret) { ath11k_err(ab, "failed to get msi for mhi\n"); diff --git a/drivers/net/wireless/ath/ath11k/qmi.c b/drivers/net/wireless/ath/ath11k/qmi.c index 5bc98180aed4..426d047ff1d5 100644 --- a/drivers/net/wireless/ath/ath11k/qmi.c +++ b/drivers/net/wireless/ath/ath11k/qmi.c @@ -2489,25 +2489,39 @@ static int ath11k_qmi_load_bdf_qmi(struct ath11k_base *ab, static int ath11k_qmi_m3_load(struct ath11k_base *ab) { struct m3_mem_region *m3_mem = &ab->qmi.m3_mem; - const struct firmware *fw; + const struct firmware *fw = NULL; + const void *m3_data; char path[100]; + size_t m3_len; int ret; if (m3_mem->vaddr) /* m3 firmware buffer is already available in the DMA buffer */ return 0; - fw = ath11k_core_firmware_request(ab, ATH11K_M3_FILE); - if (IS_ERR(fw)) { - ret = PTR_ERR(fw); - ath11k_core_create_firmware_path(ab, ATH11K_M3_FILE, - path, sizeof(path)); - ath11k_err(ab, "failed to load %s: %d\n", path, ret); - return ret; + if (ab->fw.m3_data && ab->fw.m3_len > 0) { + /* firmware-N.bin had a m3 firmware file so use that */ + m3_data = ab->fw.m3_data; + m3_len = ab->fw.m3_len; + } else { + /* No m3 file in firmware-N.bin so try to request old + * separate m3.bin. + */ + fw = ath11k_core_firmware_request(ab, ATH11K_M3_FILE); + if (IS_ERR(fw)) { + ret = PTR_ERR(fw); + ath11k_core_create_firmware_path(ab, ATH11K_M3_FILE, + path, sizeof(path)); + ath11k_err(ab, "failed to load %s: %d\n", path, ret); + return ret; + } + + m3_data = fw->data; + m3_len = fw->size; } m3_mem->vaddr = dma_alloc_coherent(ab->dev, - fw->size, &m3_mem->paddr, + m3_len, &m3_mem->paddr, GFP_KERNEL); if (!m3_mem->vaddr) { ath11k_err(ab, "failed to allocate memory for M3 with size %zu\n", @@ -2516,8 +2530,8 @@ static int ath11k_qmi_m3_load(struct ath11k_base *ab) goto out; } - memcpy(m3_mem->vaddr, fw->data, fw->size); - m3_mem->size = fw->size; + memcpy(m3_mem->vaddr, m3_data, m3_len); + m3_mem->size = m3_len; ret = 0;