From patchwork Wed Dec 13 22:45:02 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jakub Kicinski X-Patchwork-Id: 848271 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=netronome-com.20150623.gappssmtp.com header.i=@netronome-com.20150623.gappssmtp.com header.b="1FK/wGIR"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3yxsGS5GxJz9sBW for ; Thu, 14 Dec 2017 09:45:20 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752335AbdLMWpT (ORCPT ); Wed, 13 Dec 2017 17:45:19 -0500 Received: from mail-pg0-f66.google.com ([74.125.83.66]:37984 "EHLO mail-pg0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751305AbdLMWpP (ORCPT ); Wed, 13 Dec 2017 17:45:15 -0500 Received: by mail-pg0-f66.google.com with SMTP id f12so2068030pgo.5 for ; Wed, 13 Dec 2017 14:45:15 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=netronome-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=IzIut48flm8Im6TsqRfxLtrLLTcoTQPGbBfjhNEzymI=; b=1FK/wGIRd955XNcbeWYinvlzlUpUjndn0+hHpyTzCbn/jPSqy1pmb7HSCCgZstWDRK okkRpRdfMcyGsP1nhkXRAk3DMXLyY5i7RQHRwt9mOv8SuHBBmRlA4Bd/7v5iO/ErAuXH ur2UDQBPDLZqE1T7lNRhzFmCYlQfLVhXVlBgDFEzDb0kFmqAusOlWBBGTvELlgYKFZwh k5D/aAC67vjZq79CazcjIKTMpmyxH/OfX+fdGeh48gIQOP+yqK6ITt4J8bHOB45JGWsY Q11FLzG1oBfMfIUQVidimILGFpPvdQS289DC0DzGpUs+i75ty47aMhPPYPNrwFSJ497H yxcw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=IzIut48flm8Im6TsqRfxLtrLLTcoTQPGbBfjhNEzymI=; b=Ym5SFx0T6o0cT+THS9VDpNS/IH4N9QY5ohbI4CYsfn2/9Iw0AjKKJN+1wYdUlkyXBl lq70JGSjp5DNSzxisaQFT/3Qe5CZnvwNvv28go3WTu4K1xxJx/UjcfqC0KSpBn/wGmev a+a8Bs7A+AthsQyrEOC10xCun50NYbc1pY7+yXhi6u1Sr43c21FNrYCzayGK/Xga4Ymm /qHmtNELeZGBSiVxIOlUMQHkko1XtXSHhBndqvy8OiEdWZcI1/5NMtdnjvqX7pDiO//3 Oh51eqNhKKGZcYd6RzJEsB7LSbcE7Qla2bmQkDSpNiW3GLvahM17KBwejJiq2iFeJE4w PWRQ== X-Gm-Message-State: AKGB3mJSeyRFhYv77TY2xpRqtupO/yt1bHF31mktr2S5eQlkIq5wArY9 uamhTiwtelQg6JKiKjLj/64LWDUR X-Google-Smtp-Source: ACJfBovVysJCLHllIIsEszwz3JXbuPFBa2EetReTk9FOD8JOrVgJqyWdl76slycjqXuB3sWexoy6WQ== X-Received: by 10.84.132.2 with SMTP id 2mr2732022ple.360.1513205115076; Wed, 13 Dec 2017 14:45:15 -0800 (PST) Received: from jkicinski-Precision-T1700.netronome.com ([75.53.12.129]) by smtp.gmail.com with ESMTPSA id x15sm4469858pfh.27.2017.12.13.14.45.14 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 13 Dec 2017 14:45:14 -0800 (PST) From: Jakub Kicinski To: netdev@vger.kernel.org Cc: oss-drivers@netronome.com, Dirk van der Merwe Subject: [PATCH net-next 2/2] nfp: implement firmware flashing Date: Wed, 13 Dec 2017 14:45:02 -0800 Message-Id: <20171213224502.25407-3-jakub.kicinski@netronome.com> X-Mailer: git-send-email 2.15.1 In-Reply-To: <20171213224502.25407-1-jakub.kicinski@netronome.com> References: <20171213224502.25407-1-jakub.kicinski@netronome.com> Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Dirk van der Merwe Firmware flashing takes around 60s (specified to not take more than 70s). Prevent hogging the RTNL lock in this time and make use of the longer timeout for the NSP command. The timeout is set to 2.5 * 70 seconds. We only allow flashing the firmware from reprs or PF netdevs. VFs do not have an app reference. Signed-off-by: Dirk van der Merwe Reviewed-by: Jakub Kicinski --- .../net/ethernet/netronome/nfp/nfp_net_ethtool.c | 54 ++++++++++++++++++++++ .../net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c | 12 +++++ .../net/ethernet/netronome/nfp/nfpcore/nfp_nsp.h | 1 + 3 files changed, 67 insertions(+) diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c b/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c index 2cde0eb00ee3..00b8c642e672 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c @@ -47,6 +47,7 @@ #include #include #include +#include #include "nfpcore/nfp.h" #include "nfpcore/nfp_nsp.h" @@ -1269,6 +1270,57 @@ static int nfp_net_set_channels(struct net_device *netdev, return nfp_net_set_num_rings(nn, total_rx, total_tx); } +static int +nfp_net_flash_device(struct net_device *netdev, struct ethtool_flash *flash) +{ + const struct firmware *fw; + struct nfp_app *app; + struct nfp_nsp *nsp; + struct device *dev; + int err; + + if (flash->region != ETHTOOL_FLASH_ALL_REGIONS) + return -EOPNOTSUPP; + + app = nfp_app_from_netdev(netdev); + if (!app) + return -EOPNOTSUPP; + + dev = &app->pdev->dev; + + nsp = nfp_nsp_open(app->cpp); + if (IS_ERR(nsp)) { + err = PTR_ERR(nsp); + dev_err(dev, "Failed to access the NSP: %d\n", err); + return err; + } + + err = request_firmware_direct(&fw, flash->data, dev); + if (err) + goto exit_close_nsp; + + dev_info(dev, "Please be patient while writing flash image: %s\n", + flash->data); + dev_hold(netdev); + rtnl_unlock(); + + err = nfp_nsp_write_flash(nsp, fw); + if (err < 0) { + dev_err(dev, "Flash write failed: %d\n", err); + goto exit_rtnl_lock; + } + dev_info(dev, "Finished writing flash image\n"); + +exit_rtnl_lock: + rtnl_lock(); + dev_put(netdev); + release_firmware(fw); + +exit_close_nsp: + nfp_nsp_close(nsp); + return err; +} + static const struct ethtool_ops nfp_net_ethtool_ops = { .get_drvinfo = nfp_net_get_drvinfo, .get_link = ethtool_op_get_link, @@ -1279,6 +1331,7 @@ static const struct ethtool_ops nfp_net_ethtool_ops = { .get_sset_count = nfp_net_get_sset_count, .get_rxnfc = nfp_net_get_rxnfc, .set_rxnfc = nfp_net_set_rxnfc, + .flash_device = nfp_net_flash_device, .get_rxfh_indir_size = nfp_net_get_rxfh_indir_size, .get_rxfh_key_size = nfp_net_get_rxfh_key_size, .get_rxfh = nfp_net_get_rxfh, @@ -1304,6 +1357,7 @@ const struct ethtool_ops nfp_port_ethtool_ops = { .get_strings = nfp_port_get_strings, .get_ethtool_stats = nfp_port_get_stats, .get_sset_count = nfp_port_get_sset_count, + .flash_device = nfp_net_flash_device, .set_dump = nfp_app_set_dump, .get_dump_flag = nfp_app_get_dump_flag, .get_dump_data = nfp_app_get_dump_data, diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c index a6b40091968d..39abac678b71 100644 --- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c +++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c @@ -96,6 +96,7 @@ enum nfp_nsp_cmd { SPCODE_FW_LOAD = 6, /* Load fw from buffer, len in option */ SPCODE_ETH_RESCAN = 7, /* Rescan ETHs, write ETH_TABLE to buf */ SPCODE_ETH_CONTROL = 8, /* Update media config from buffer */ + SPCODE_NSP_WRITE_FLASH = 11, /* Load and flash image from buffer */ SPCODE_NSP_SENSORS = 12, /* Read NSP sensor(s) */ SPCODE_NSP_IDENTIFY = 13, /* Read NSP version */ }; @@ -514,6 +515,17 @@ int nfp_nsp_load_fw(struct nfp_nsp *state, const struct firmware *fw) fw->size, NULL, 0); } +int nfp_nsp_write_flash(struct nfp_nsp *state, const struct firmware *fw) +{ + /* The flash time is specified to take a maximum of 70s so we add an + * additional factor to this spec time. + */ + u32 timeout_sec = 2.5 * 70; + + return __nfp_nsp_command_buf(state, SPCODE_NSP_WRITE_FLASH, fw->size, + fw->data, fw->size, NULL, 0, timeout_sec); +} + int nfp_nsp_read_eth_table(struct nfp_nsp *state, void *buf, unsigned int size) { return nfp_nsp_command_buf(state, SPCODE_ETH_RESCAN, size, NULL, 0, diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.h b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.h index 650ca1a5bd21..e983c9d7f86c 100644 --- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.h +++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.h @@ -48,6 +48,7 @@ u16 nfp_nsp_get_abi_ver_minor(struct nfp_nsp *state); int nfp_nsp_wait(struct nfp_nsp *state); int nfp_nsp_device_soft_reset(struct nfp_nsp *state); int nfp_nsp_load_fw(struct nfp_nsp *state, const struct firmware *fw); +int nfp_nsp_write_flash(struct nfp_nsp *state, const struct firmware *fw); int nfp_nsp_mac_reinit(struct nfp_nsp *state); static inline bool nfp_nsp_has_mac_reinit(struct nfp_nsp *state)