From patchwork Wed Apr 17 14:20:28 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michal Swiatkowski X-Patchwork-Id: 13633440 X-Patchwork-Delegate: kuba@kernel.org Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DE6321422CA for ; Wed, 17 Apr 2024 14:16:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.19 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713363365; cv=none; b=UFhwa+fTb0sPsCCXIvNOBtGz4JJ63Mu4xn09et9OubtLPbaanmY86mhsEv/3Z5BgdfseM2DvCL+PpnizlcF/eNOYvUv4ElshnziEB6fW7ApjZOr/dzv8sntEAlqahSApb/BG/fgjxKTHWOiI5D9JjnUtpfCJu0B1ttF8U5JLCrE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713363365; c=relaxed/simple; bh=10+GUfaz0qa+cvWzf5AwbvXEzX42v+jxax5DazA5fOo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=GINPb9MamFMALEXj3uSkAUt++PQSHOMP05eIAICVw/F8ibhtnCUVLSAuiAXMZ688mRuGzFhxOqRUb6AGvRbkXjz81PqUmiN40Tgn0gO8qSrNC20Fqu7e10BE3+gof9q7xCRVFtreArdpH93jSwUnREeyHhkJkLRsYdG1HIqTia0= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=k3EnAHwX; arc=none smtp.client-ip=198.175.65.19 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="k3EnAHwX" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1713363364; x=1744899364; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=10+GUfaz0qa+cvWzf5AwbvXEzX42v+jxax5DazA5fOo=; b=k3EnAHwX5+eYAPBMB46HAPXWN8bDC6X6lsnKL1VQXHRhtqqBizBbayOF t4jZmcwSjEdo3IHEnxgvWedd7QdZEffzYu7/OGaxPJtbuwH1ghQBBB3WT 6iVHVHEVjY94AFiSMCJrvNC6dK9GciqSjVz2bAZcDVh9RNiorEmh4c20x MrhYo9uQj3cQL99+ngxa6Zfs+MGseIQHyXvVCRq+dEkN+8tDFTLbh89Kw EnK+f/GXNYj0GEstzxuKjffYEI5b+nl+ERzypc5OklCDZRRgviRmGTRnk QlRAmcyeSMdgKQnAi9T+yR3w0+wse6CY1/v2k9XjpgUYUrbmkWxG/8y6s g==; X-CSE-ConnectionGUID: BY/bwaGySs+AwjMvomgyXQ== X-CSE-MsgGUID: /UkTL9OIRwmkZJJWJOExgg== X-IronPort-AV: E=McAfee;i="6600,9927,11046"; a="8737165" X-IronPort-AV: E=Sophos;i="6.07,209,1708416000"; d="scan'208";a="8737165" Received: from orviesa001.jf.intel.com ([10.64.159.141]) by orvoesa111.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Apr 2024 07:16:03 -0700 X-CSE-ConnectionGUID: FW0XLdD/Qv+VgZx/UTUW9A== X-CSE-MsgGUID: cdvmNlNWTJuf4vo01CSdvQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.07,209,1708416000"; d="scan'208";a="60050493" Received: from wasp.igk.intel.com (HELO GK3153-DR2-R750-36946.localdomain.com) ([10.102.20.192]) by orviesa001.jf.intel.com with ESMTP; 17 Apr 2024 07:15:59 -0700 From: Michal Swiatkowski To: intel-wired-lan@lists.osuosl.org Cc: netdev@vger.kernel.org, jacob.e.keller@intel.com, michal.kubiak@intel.com, maciej.fijalkowski@intel.com, sridhar.samudrala@intel.com, przemyslaw.kitszel@intel.com, wojciech.drewek@intel.com, pio.raczynski@gmail.com, jiri@nvidia.com, mateusz.polchlopek@intel.com Subject: [iwl-next v4 8/8] ice: allow to activate and deactivate subfunction Date: Wed, 17 Apr 2024 16:20:28 +0200 Message-ID: <20240417142028.2171-9-michal.swiatkowski@linux.intel.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20240417142028.2171-1-michal.swiatkowski@linux.intel.com> References: <20240417142028.2171-1-michal.swiatkowski@linux.intel.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-Delegate: kuba@kernel.org From: Piotr Raczynski Use previously implemented SF aux driver. It is probe during SF activation and remove after deactivation. Signed-off-by: Piotr Raczynski Signed-off-by: Michal Swiatkowski --- .../ethernet/intel/ice/devlink/devlink_port.c | 106 ++++++++++++++++++ .../ethernet/intel/ice/devlink/devlink_port.h | 5 + drivers/net/ethernet/intel/ice/ice_sf_eth.c | 104 +++++++++++++++++ drivers/net/ethernet/intel/ice/ice_sf_eth.h | 3 + 4 files changed, 218 insertions(+) diff --git a/drivers/net/ethernet/intel/ice/devlink/devlink_port.c b/drivers/net/ethernet/intel/ice/devlink/devlink_port.c index 0ab4d687e311..efff286f9e3e 100644 --- a/drivers/net/ethernet/intel/ice/devlink/devlink_port.c +++ b/drivers/net/ethernet/intel/ice/devlink/devlink_port.c @@ -482,6 +482,42 @@ void ice_devlink_destroy_sf_dev_port(struct ice_sf_dev *sf_dev) devl_port_unregister(&sf_dev->priv->devlink_port); } +/** + * ice_activate_dynamic_port - Activate a dynamic port + * @dyn_port: dynamic port instance to activate + * @extack: extack for reporting error messages + * + * Activate the dynamic port based on its flavour. + * + * Return: zero on success or an error code on failure. + */ +static int +ice_activate_dynamic_port(struct ice_dynamic_port *dyn_port, + struct netlink_ext_ack *extack) +{ + int err; + + err = ice_sf_eth_activate(dyn_port, extack); + if (err) + return err; + + dyn_port->active = true; + + return 0; +} + +/** + * ice_deactivate_dynamic_port - Deactivate a dynamic port + * @dyn_port: dynamic port instance to deactivate + * + * Undo activation of a dynamic port. + */ +static void ice_deactivate_dynamic_port(struct ice_dynamic_port *dyn_port) +{ + ice_sf_eth_deactivate(dyn_port); + dyn_port->active = false; +} + /** * ice_dealloc_dynamic_port - Deallocate and remove a dynamic port * @dyn_port: dynamic port instance to deallocate @@ -494,6 +530,9 @@ static void ice_dealloc_dynamic_port(struct ice_dynamic_port *dyn_port) struct devlink_port *devlink_port = &dyn_port->devlink_port; struct ice_pf *pf = dyn_port->pf; + if (dyn_port->active) + ice_deactivate_dynamic_port(dyn_port); + xa_erase(&pf->sf_nums, devlink_port->attrs.pci_sf.sf); devl_port_unregister(devlink_port); ice_vsi_free(dyn_port->vsi); @@ -638,10 +677,77 @@ ice_devlink_port_fn_hw_addr_get(struct devlink_port *port, u8 *hw_addr, return 0; } +/** + * ice_devlink_port_fn_state_set - devlink handler for port state set + * @port: pointer to devlink port + * @state: state to set + * @extack: extack for reporting error messages + * + * Activates or deactivates the port. + * + * Return: zero on success or an error code on failure. + */ +static int +ice_devlink_port_fn_state_set(struct devlink_port *port, + enum devlink_port_fn_state state, + struct netlink_ext_ack *extack) +{ + struct ice_dynamic_port *dyn_port; + + dyn_port = ice_devlink_port_to_dyn(port); + + switch (state) { + case DEVLINK_PORT_FN_STATE_ACTIVE: + if (!dyn_port->active) + return ice_activate_dynamic_port(dyn_port, extack); + break; + case DEVLINK_PORT_FN_STATE_INACTIVE: + if (dyn_port->active) + ice_deactivate_dynamic_port(dyn_port); + break; + } + + return 0; +} + +/** + * ice_devlink_port_fn_state_get - devlink handler for port state get + * @port: pointer to devlink port + * @state: admin configured state of the port + * @opstate: current port operational state + * @extack: extack for reporting error messages + * + * Gets port state. + * + * Return: zero on success or an error code on failure. + */ +static int +ice_devlink_port_fn_state_get(struct devlink_port *port, + enum devlink_port_fn_state *state, + enum devlink_port_fn_opstate *opstate, + struct netlink_ext_ack *extack) +{ + struct ice_dynamic_port *dyn_port; + + dyn_port = ice_devlink_port_to_dyn(port); + + if (dyn_port->active) { + *state = DEVLINK_PORT_FN_STATE_ACTIVE; + *opstate = DEVLINK_PORT_FN_OPSTATE_ATTACHED; + } else { + *state = DEVLINK_PORT_FN_STATE_INACTIVE; + *opstate = DEVLINK_PORT_FN_OPSTATE_DETACHED; + } + + return 0; +} + static const struct devlink_port_ops ice_devlink_port_sf_ops = { .port_del = ice_devlink_port_del, .port_fn_hw_addr_get = ice_devlink_port_fn_hw_addr_get, .port_fn_hw_addr_set = ice_devlink_port_fn_hw_addr_set, + .port_fn_state_get = ice_devlink_port_fn_state_get, + .port_fn_state_set = ice_devlink_port_fn_state_set, }; /** diff --git a/drivers/net/ethernet/intel/ice/devlink/devlink_port.h b/drivers/net/ethernet/intel/ice/devlink/devlink_port.h index 33f07cec6bd6..3692b8617bd5 100644 --- a/drivers/net/ethernet/intel/ice/devlink/devlink_port.h +++ b/drivers/net/ethernet/intel/ice/devlink/devlink_port.h @@ -14,6 +14,7 @@ * @devlink_port: the associated devlink port structure * @pf: pointer to the PF private structure * @vsi: the VSI associated with this port + * @sf_dev: pointer to the subfunction device * * An instance of a dynamically added devlink port. Each port flavour */ @@ -23,6 +24,10 @@ struct ice_dynamic_port { struct devlink_port devlink_port; struct ice_pf *pf; struct ice_vsi *vsi; + /* Flavour-specific implementation data */ + union { + struct ice_sf_dev *sf_dev; + }; }; void ice_dealloc_all_dynamic_ports(struct ice_pf *pf); diff --git a/drivers/net/ethernet/intel/ice/ice_sf_eth.c b/drivers/net/ethernet/intel/ice/ice_sf_eth.c index ecef869c20a1..663bfdcf68b5 100644 --- a/drivers/net/ethernet/intel/ice/ice_sf_eth.c +++ b/drivers/net/ethernet/intel/ice/ice_sf_eth.c @@ -202,6 +202,8 @@ static struct auxiliary_driver ice_sf_driver = { .id_table = ice_sf_dev_id_table }; +static DEFINE_XARRAY_ALLOC1(ice_sf_aux_id); + /** * ice_sf_driver_register - Register new auxiliary subfunction driver * @@ -221,3 +223,105 @@ void ice_sf_driver_unregister(void) { auxiliary_driver_unregister(&ice_sf_driver); } + +/** + * ice_sf_dev_release - Release device associated with auxiliary device + * @device: pointer to the device + * + * Since most of the code for subfunction deactivation is handled in + * the remove handler, here just free tracking resources. + */ +static void ice_sf_dev_release(struct device *device) +{ + struct auxiliary_device *adev = to_auxiliary_dev(device); + struct ice_sf_dev *sf_dev = ice_adev_to_sf_dev(adev); + + xa_erase(&ice_sf_aux_id, adev->id); + kfree(sf_dev); +} + +/** + * ice_sf_eth_activate - Activate Ethernet subfunction port + * @dyn_port: the dynamic port instance for this subfunction + * @extack: extack for reporting error messages + * + * Activate the dynamic port as an Ethernet subfunction. Setup the netdev + * resources associated and initialize the auxiliary device. + * + * Return: zero on success or an error code on failure. + */ +int +ice_sf_eth_activate(struct ice_dynamic_port *dyn_port, + struct netlink_ext_ack *extack) +{ + struct ice_pf *pf = dyn_port->pf; + struct ice_sf_dev *sf_dev; + struct pci_dev *pdev; + int err; + u32 id; + + err = xa_alloc(&ice_sf_aux_id, &id, NULL, xa_limit_32b, + GFP_KERNEL); + if (err) { + NL_SET_ERR_MSG_MOD(extack, "Could not allocate subfunction ID"); + return err; + } + + sf_dev = kzalloc(sizeof(*sf_dev), GFP_KERNEL); + if (!sf_dev) { + err = -ENOMEM; + NL_SET_ERR_MSG_MOD(extack, "Could not allocate sf_dev memory"); + goto xa_erase; + } + pdev = pf->pdev; + + sf_dev->dyn_port = dyn_port; + sf_dev->adev.id = id; + sf_dev->adev.name = "sf"; + sf_dev->adev.dev.release = ice_sf_dev_release; + sf_dev->adev.dev.parent = &pdev->dev; + + err = auxiliary_device_init(&sf_dev->adev); + if (err) { + NL_SET_ERR_MSG_MOD(extack, "Failed to initialize auxiliary device"); + goto sf_dev_free; + } + + err = auxiliary_device_add(&sf_dev->adev); + if (err) { + NL_SET_ERR_MSG_MOD(extack, "Auxiliary device failed to probe"); + goto aux_dev_uninit; + } + + dyn_port->sf_dev = sf_dev; + + return 0; + +aux_dev_uninit: + auxiliary_device_uninit(&sf_dev->adev); +sf_dev_free: + kfree(sf_dev); +xa_erase: + xa_erase(&ice_sf_aux_id, id); + + return err; +} + +/** + * ice_sf_eth_deactivate - Deactivate Ethernet subfunction port + * @dyn_port: the dynamic port instance for this subfunction + * + * Deactivate the Ethernet subfunction, removing its auxiliary device and the + * associated resources. + */ +void ice_sf_eth_deactivate(struct ice_dynamic_port *dyn_port) +{ + struct ice_sf_dev *sf_dev = dyn_port->sf_dev; + + if (sf_dev) { + auxiliary_device_delete(&sf_dev->adev); + auxiliary_device_uninit(&sf_dev->adev); + } + + dyn_port->sf_dev = NULL; +} diff --git a/drivers/net/ethernet/intel/ice/ice_sf_eth.h b/drivers/net/ethernet/intel/ice/ice_sf_eth.h index e972c50f96c9..c558cad0a183 100644 --- a/drivers/net/ethernet/intel/ice/ice_sf_eth.h +++ b/drivers/net/ethernet/intel/ice/ice_sf_eth.h @@ -27,4 +27,7 @@ ice_sf_dev *ice_adev_to_sf_dev(struct auxiliary_device *adev) int ice_sf_driver_register(void); void ice_sf_driver_unregister(void); +int ice_sf_eth_activate(struct ice_dynamic_port *dyn_port, + struct netlink_ext_ack *extack); +void ice_sf_eth_deactivate(struct ice_dynamic_port *dyn_port); #endif /* _ICE_SF_ETH_H_ */