From patchwork Wed Sep 7 07:48:01 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Russell King (Oracle)" X-Patchwork-Id: 12968536 X-Patchwork-Delegate: kuba@kernel.org 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 5E621C6FA8C for ; Wed, 7 Sep 2022 07:48:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230105AbiIGHsb (ORCPT ); Wed, 7 Sep 2022 03:48:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43774 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230151AbiIGHsL (ORCPT ); Wed, 7 Sep 2022 03:48:11 -0400 Received: from pandora.armlinux.org.uk (pandora.armlinux.org.uk [IPv6:2001:4d48:ad52:32c8:5054:ff:fe00:142]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5BF26A6C2A; Wed, 7 Sep 2022 00:48:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=armlinux.org.uk; s=pandora-2019; h=Date:Sender:Message-Id:Content-Type: Content-Transfer-Encoding:MIME-Version:Subject:Cc:To:From:References: In-Reply-To:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=2ZMWSPwBF52GouKAY5XPhuPnFdHSUvHNIP8zJJW7PvQ=; b=wEfqqr6V/A7r+LBwg7BrZWVJFT YV7sdHGiEXlFqqd4wyIGukposEhG5hu0eTH//qm4qJl0CjTrVp1IP9YEnf9BmUa5OLafzANGUanDh juUrlFCIaRWIk1MDxsoiLXgkD2p4OuYLdBfysT1poX/L32FEoZug2we0UZm1ODWn5szcw5Cr64D3h g7iuycuGorIc0oNsNPIqvl7wN5x3L2CwiWAWRLweHJtshgtSnLzg3zSEwFiGi70CHPeIthQBPFP7r N/D3i9eCmnO88s31I9FUxhgu0rwg/+Ru+JJ//0PQojDOpQQKoRMAT8k9Od8FyvZecksArGtla3yfz VlR6kpJw==; Received: from e0022681537dd.dyn.armlinux.org.uk ([fd8f:7570:feb6:1:222:68ff:fe15:37dd]:46584 helo=rmk-PC.armlinux.org.uk) by pandora.armlinux.org.uk with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1oVpn0-0004v4-DF; Wed, 07 Sep 2022 08:48:02 +0100 Received: from rmk by rmk-PC.armlinux.org.uk with local (Exim 4.94.2) (envelope-from ) id 1oVpmz-005LBe-KD; Wed, 07 Sep 2022 08:48:01 +0100 In-Reply-To: References: From: Russell King (Oracle) To: Arend van Spriel , Franky Lin , Hante Meuleman Cc: Alyssa Rosenzweig , asahi@lists.linux.dev, brcm80211-dev-list.pdl@broadcom.com, "David S. Miller" , devicetree@vger.kernel.org, Eric Dumazet , Hector Martin , Jakub Kicinski , Kalle Valo , Krzysztof Kozlowski , linux-arm-kernel@lists.infradead.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, Paolo Abeni , "Rafa__ Mi__ecki" , Rob Herring , SHA-cyfmac-dev-list@infineon.com, Sven Peter Subject: [PATCH net-next 04/12] brcmfmac: firmware: Support passing in multiple board_types MIME-Version: 1.0 Content-Disposition: inline Message-Id: Sender: Russell King Date: Wed, 07 Sep 2022 08:48:01 +0100 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org From: Hector Martin Apple platforms have firmware and config files identified with multiple dimensions. We want to be able to find the most specific firmware available for any given platform, progressively trying more general firmwares. To do this, first add support for passing in multiple board_types, which will be tried in sequence. Since this will cause more log spam due to missing firmwares, also switch the secondary firmware fecthes to use the _nowarn variant, which will not log if the firmware is not found. Signed-off-by: Hector Martin Signed-off-by: Russell King (Oracle) --- .../broadcom/brcm80211/brcmfmac/firmware.c | 53 +++++++++++++++---- .../broadcom/brcm80211/brcmfmac/firmware.h | 4 +- .../broadcom/brcm80211/brcmfmac/pcie.c | 4 +- .../broadcom/brcm80211/brcmfmac/sdio.c | 2 +- 4 files changed, 49 insertions(+), 14 deletions(-) diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c index 6c7c0c8f94ce..371c086d1f48 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c @@ -430,6 +430,7 @@ struct brcmf_fw { struct device *dev; struct brcmf_fw_request *req; u32 curpos; + unsigned int board_index; void (*done)(struct device *dev, int err, struct brcmf_fw_request *req); }; @@ -616,17 +617,21 @@ static int brcmf_fw_request_firmware(const struct firmware **fw, struct brcmf_fw *fwctx) { struct brcmf_fw_item *cur = &fwctx->req->items[fwctx->curpos]; + unsigned int i; int ret; - /* Files can be board-specific, first try a board-specific path */ - if (fwctx->req->board_type) { + /* Files can be board-specific, first try board-specific paths */ + for (i = 0; i < ARRAY_SIZE(fwctx->req->board_types); i++) { char *alt_path; - alt_path = brcm_alt_fw_path(cur->path, fwctx->req->board_type); + if (!fwctx->req->board_types[i]) + goto fallback; + alt_path = brcm_alt_fw_path(cur->path, + fwctx->req->board_types[i]); if (!alt_path) goto fallback; - ret = request_firmware(fw, alt_path, fwctx->dev); + ret = firmware_request_nowarn(fw, alt_path, fwctx->dev); kfree(alt_path); if (ret == 0) return ret; @@ -660,15 +665,40 @@ static void brcmf_fw_request_done_alt_path(const struct firmware *fw, void *ctx) { struct brcmf_fw *fwctx = ctx; struct brcmf_fw_item *first = &fwctx->req->items[0]; + const char *board_type, *alt_path; int ret = 0; - /* Fall back to canonical path if board firmware not found */ - if (!fw) - ret = request_firmware_nowait(THIS_MODULE, true, first->path, + if (fw) { + brcmf_fw_request_done(fw, ctx); + return; + } + + /* Try next board firmware */ + if (fwctx->board_index < ARRAY_SIZE(fwctx->req->board_types)) { + board_type = fwctx->req->board_types[fwctx->board_index++]; + if (!board_type) + goto fallback; + alt_path = brcm_alt_fw_path(first->path, board_type); + if (!alt_path) + goto fallback; + + ret = request_firmware_nowait(THIS_MODULE, true, alt_path, fwctx->dev, GFP_KERNEL, fwctx, - brcmf_fw_request_done); + brcmf_fw_request_done_alt_path); + kfree(alt_path); - if (fw || ret < 0) + if (ret < 0) + brcmf_fw_request_done(fw, ctx); + return; + } + +fallback: + /* Fall back to canonical path if board firmware not found */ + ret = request_firmware_nowait(THIS_MODULE, true, first->path, + fwctx->dev, GFP_KERNEL, fwctx, + brcmf_fw_request_done); + + if (ret < 0) brcmf_fw_request_done(fw, ctx); } @@ -712,10 +742,11 @@ int brcmf_fw_get_firmwares(struct device *dev, struct brcmf_fw_request *req, fwctx->done = fw_cb; /* First try alternative board-specific path if any */ - if (fwctx->req->board_type) + if (fwctx->req->board_types[0]) alt_path = brcm_alt_fw_path(first->path, - fwctx->req->board_type); + fwctx->req->board_types[0]); if (alt_path) { + fwctx->board_index++; ret = request_firmware_nowait(THIS_MODULE, true, alt_path, fwctx->dev, GFP_KERNEL, fwctx, brcmf_fw_request_done_alt_path); diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.h index e290dec9c53d..1266cbaee072 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.h +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.h @@ -11,6 +11,8 @@ #define BRCMF_FW_DEFAULT_PATH "brcm/" +#define BRCMF_FW_MAX_BOARD_TYPES 8 + /** * struct brcmf_firmware_mapping - Used to map chipid/revmask to firmware * filename and nvram filename. Each bus type implementation should create @@ -66,7 +68,7 @@ struct brcmf_fw_request { u16 domain_nr; u16 bus_nr; u32 n_items; - const char *board_type; + const char *board_types[BRCMF_FW_MAX_BOARD_TYPES]; struct brcmf_fw_item items[]; }; diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c index ec73d2620ec9..2a74c9d8d46a 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c @@ -1852,11 +1852,13 @@ brcmf_pcie_prepare_fw_request(struct brcmf_pciedev_info *devinfo) fwreq->items[BRCMF_PCIE_FW_NVRAM].flags = BRCMF_FW_REQF_OPTIONAL; fwreq->items[BRCMF_PCIE_FW_CLM].type = BRCMF_FW_TYPE_BINARY; fwreq->items[BRCMF_PCIE_FW_CLM].flags = BRCMF_FW_REQF_OPTIONAL; - fwreq->board_type = devinfo->settings->board_type; /* NVRAM reserves PCI domain 0 for Broadcom's SDK faked bus */ fwreq->domain_nr = pci_domain_nr(devinfo->pdev->bus) + 1; fwreq->bus_nr = devinfo->pdev->bus->number; + brcmf_dbg(PCIE, "Board: %s\n", devinfo->settings->board_type); + fwreq->board_types[0] = devinfo->settings->board_type; + return fwreq; } diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c index 73a74635a77d..266b8d23d402 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c @@ -4424,7 +4424,7 @@ brcmf_sdio_prepare_fw_request(struct brcmf_sdio *bus) fwreq->items[BRCMF_SDIO_FW_NVRAM].type = BRCMF_FW_TYPE_NVRAM; fwreq->items[BRCMF_SDIO_FW_CLM].type = BRCMF_FW_TYPE_BINARY; fwreq->items[BRCMF_SDIO_FW_CLM].flags = BRCMF_FW_REQF_OPTIONAL; - fwreq->board_type = bus->sdiodev->settings->board_type; + fwreq->board_types[0] = bus->sdiodev->settings->board_type; return fwreq; }