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Tue, 7 May 2024 11:40:33 +0000 (UTC) X-CSE-ConnectionGUID: +eBhhvciTWK9NneqML6++w== X-CSE-MsgGUID: pVDao3rwSOCSE/ApY12hQA== X-IronPort-AV: E=McAfee;i="6600,9927,11065"; a="22029205" X-IronPort-AV: E=Sophos;i="6.08,261,1712646000"; d="scan'208";a="22029205" Received: from orviesa009.jf.intel.com ([10.64.159.149]) by orvoesa105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 May 2024 04:40:34 -0700 X-CSE-ConnectionGUID: rpIlg5HnSA+6EWqZ4NRuVQ== X-CSE-MsgGUID: 1m7Smn6USXm8BFLOneG5HA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.08,261,1712646000"; d="scan'208";a="28576701" Received: from wasp.igk.intel.com (HELO GK3153-DR2-R750-36946.localdomain.com) ([10.102.20.192]) by orviesa009.jf.intel.com with ESMTP; 07 May 2024 04:40:30 -0700 From: Michal Swiatkowski To: intel-wired-lan@lists.osuosl.org Date: Tue, 7 May 2024 13:45:08 +0200 Message-ID: <20240507114516.9765-8-michal.swiatkowski@linux.intel.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20240507114516.9765-1-michal.swiatkowski@linux.intel.com> References: <20240507114516.9765-1-michal.swiatkowski@linux.intel.com> MIME-Version: 1.0 X-Mailman-Original-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1715082034; x=1746618034; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=wTiie1WC0v0OwejiEl33D0ZP6bZoFdlvg+u6AavqK7A=; b=TQYZh5rdnIcI3KmWFsjhj9B3+V/ANLjCmxd5BjSd5znMQjmifd+zyq70 gAwsvfFY7fFT9UiFw7NGcqtnsGPzQBFbBP/RwPdw9PH0YycWDYeFD04z2 FF57N/qWRYnAU63pWKL4Pysjk32ysN5UTiQKs5BWzcdizje1IJJJ5YdgP 48olI+a8kz5za6Xbx9BJZ2EsuvJnmkNFOgM3TfsN4lXWPeFMHv7E4jZKe PhFKkHE83MHNdmzeXJdyQp3rKqGftjF7IEK22WCqHyR6hvrhcANyxN+qT CVJGxINMvMAXY0XqJs9XQnuYKDGURNFN5h/0nSr1jZcFI+IXZThgyo5bl A==; X-Mailman-Original-Authentication-Results: smtp2.osuosl.org; dmarc=none (p=none dis=none) header.from=linux.intel.com X-Mailman-Original-Authentication-Results: smtp2.osuosl.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=TQYZh5rd Subject: [Intel-wired-lan] [iwl-next v1 07/14] ice: implement netdev for subfunction X-BeenThere: intel-wired-lan@osuosl.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Wired Ethernet Linux Kernel Driver Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: shayd@nvidia.com, maciej.fijalkowski@intel.com, sridhar.samudrala@intel.com, mateusz.polchlopek@intel.com, netdev@vger.kernel.org, jiri@nvidia.com, michal.kubiak@intel.com, pio.raczynski@gmail.com, przemyslaw.kitszel@intel.com, jacob.e.keller@intel.com, wojciech.drewek@intel.com Errors-To: intel-wired-lan-bounces@osuosl.org Sender: "Intel-wired-lan" From: Piotr Raczynski Configure netdevice for subfunction usecase. Mostly it is reusing ops from the PF netdevice. SF netdev is linked to devlink port registered after SF activation. Reviewed-by: Jiri Pirko Signed-off-by: Piotr Raczynski Signed-off-by: Michal Swiatkowski --- drivers/net/ethernet/intel/ice/ice_sf_eth.c | 85 ++++++++++++++++++++- 1 file changed, 84 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/intel/ice/ice_sf_eth.c b/drivers/net/ethernet/intel/ice/ice_sf_eth.c index abe495c2d033..3a540a2638d1 100644 --- a/drivers/net/ethernet/intel/ice/ice_sf_eth.c +++ b/drivers/net/ethernet/intel/ice/ice_sf_eth.c @@ -2,11 +2,85 @@ /* Copyright (c) 2024, Intel Corporation. */ #include "ice.h" #include "ice_lib.h" +#include "ice_txrx.h" #include "ice_fltr.h" #include "ice_sf_eth.h" #include "devlink/devlink_port.h" #include "devlink/devlink.h" +static const struct net_device_ops ice_sf_netdev_ops = { + .ndo_open = ice_open, + .ndo_stop = ice_stop, + .ndo_start_xmit = ice_start_xmit, + .ndo_vlan_rx_add_vid = ice_vlan_rx_add_vid, + .ndo_vlan_rx_kill_vid = ice_vlan_rx_kill_vid, + .ndo_change_mtu = ice_change_mtu, + .ndo_get_stats64 = ice_get_stats64, + .ndo_tx_timeout = ice_tx_timeout, + .ndo_bpf = ice_xdp, + .ndo_xdp_xmit = ice_xdp_xmit, + .ndo_xsk_wakeup = ice_xsk_wakeup, +}; + +/** + * ice_sf_cfg_netdev - Allocate, configure and register a netdev + * @dyn_port: subfunction associated with configured netdev + * @devlink_port: subfunction devlink port to be linked with netdev + * + * Return: 0 on success, negative value on failure + */ +static int ice_sf_cfg_netdev(struct ice_dynamic_port *dyn_port, + struct devlink_port *devlink_port) +{ + struct ice_vsi *vsi = dyn_port->vsi; + struct ice_netdev_priv *np; + struct net_device *netdev; + int err; + + netdev = alloc_etherdev_mqs(sizeof(*np), vsi->alloc_txq, + vsi->alloc_rxq); + if (!netdev) + return -ENOMEM; + + SET_NETDEV_DEV(netdev, &vsi->back->pdev->dev); + set_bit(ICE_VSI_NETDEV_ALLOCD, vsi->state); + vsi->netdev = netdev; + np = netdev_priv(netdev); + np->vsi = vsi; + + ice_set_netdev_features(netdev); + + netdev->xdp_features = NETDEV_XDP_ACT_BASIC | NETDEV_XDP_ACT_REDIRECT | + NETDEV_XDP_ACT_XSK_ZEROCOPY | + NETDEV_XDP_ACT_RX_SG; + + eth_hw_addr_set(netdev, dyn_port->hw_addr); + ether_addr_copy(netdev->perm_addr, dyn_port->hw_addr); + netdev->netdev_ops = &ice_sf_netdev_ops; + SET_NETDEV_DEVLINK_PORT(netdev, devlink_port); + + err = register_netdev(netdev); + if (err) { + free_netdev(netdev); + vsi->netdev = NULL; + return -ENOMEM; + } + set_bit(ICE_VSI_NETDEV_REGISTERED, vsi->state); + netif_carrier_off(netdev); + netif_tx_stop_all_queues(netdev); + + return 0; +} + +static void ice_sf_decfg_netdev(struct ice_vsi *vsi) +{ + unregister_netdev(vsi->netdev); + clear_bit(ICE_VSI_NETDEV_REGISTERED, vsi->state); + free_netdev(vsi->netdev); + vsi->netdev = NULL; + clear_bit(ICE_VSI_NETDEV_ALLOCD, vsi->state); +} + /** * ice_sf_dev_probe - subfunction driver probe function * @adev: pointer to the auxiliary device @@ -57,10 +131,16 @@ static int ice_sf_dev_probe(struct auxiliary_device *adev, goto err_vsi_decfg; } + err = ice_sf_cfg_netdev(dyn_port, &sf_dev->priv->devlink_port); + if (err) { + dev_err(dev, "Subfunction netdev config failed"); + goto err_devlink_destroy; + } + err = devl_port_fn_devlink_set(&dyn_port->devlink_port, devlink); if (err) { dev_err(dev, "Can't link devlink instance to SF devlink port"); - goto err_devlink_destroy; + goto err_netdev_decfg; } ice_napi_add(vsi); @@ -70,6 +150,8 @@ static int ice_sf_dev_probe(struct auxiliary_device *adev, return 0; +err_netdev_decfg: + ice_sf_decfg_netdev(vsi); err_devlink_destroy: ice_devlink_destroy_sf_dev_port(sf_dev); err_vsi_decfg: @@ -98,6 +180,7 @@ static void ice_sf_dev_remove(struct auxiliary_device *adev) ice_vsi_close(vsi); + ice_sf_decfg_netdev(vsi); ice_devlink_destroy_sf_dev_port(sf_dev); devl_unregister(devlink); devl_unlock(devlink);