From patchwork Mon Oct 28 10:03:34 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michal Swiatkowski X-Patchwork-Id: 13853228 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 67C6F1D0DF7 for ; Mon, 28 Oct 2024 10:03:52 +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=1730109834; cv=none; b=pqGcA/VjI+NW9p+gpbxLtAjFA/Jf60l31a+dhZFvOxWkPolRjgkXJTriTy3aElXVyg0DDbPv91CMciY8XAv65MhMpx/+f88WIUzRKVIbasyy2KEYpssUq5o3Hv66tCYH6pfKmQt0hCT9sXUhqcvGrDeS4SOvSJnXp8ScIWl9viE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730109834; c=relaxed/simple; bh=8oKc2MmG4R7odW5G1k98XLyef5TSCgK6ngSyHoLByLM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=kYqo3jHGDK2i+NXsd4Z94tL1nrSSchEWzvT/a7HDbO14dIJu5a3PJ9+ugWqTjpVj31wQuJxPODIfND3CuEsHo3mOg2pO0BJB7ZwHcOpk4vOb5TUs3Ya2zUMcbYqaPIRdXpmv03g9NZaAq7gKqSBhBavm8SoD398j58QuH0O4ZdY= 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=Ro9e73kg; 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="Ro9e73kg" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1730109833; x=1761645833; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=8oKc2MmG4R7odW5G1k98XLyef5TSCgK6ngSyHoLByLM=; b=Ro9e73kgqFAtSPyXciPhcHDOmhgWKPB0EiYyU2iuabXO9gRAAAgCgpPX ELoZBkDo7/C9MD7ZEz6ImR+EpBQOv2I5kmklVwmdAoG/3WKIHPQfB2IoB t3S+MRlFh1qG+XqLc/+yD/NqkeRnssvOvUyylBJrIJklBbhy0726zHsXh kTsS/ZlI1uUIQME24+2IavA3i4ij2G02Jl+Pebs96ig2y2CzDL3YVGZMp V0bw5pmUH2S+3Ap4EOJgE8SrTWQIK5h0UX8O5v23OaYiYvUaiV5XI2mAl GkEJVjhdEg9cbr6G+McSrE86FxW+PMjhDWrjnD9ZxTDE83EHyCX5LX9Qh Q==; X-CSE-ConnectionGUID: kb7PFCNSQlaK5n+JfIxTlg== X-CSE-MsgGUID: LsnBfAh3SFq9BzRKRGX+cQ== X-IronPort-AV: E=McAfee;i="6700,10204,11222"; a="29560725" X-IronPort-AV: E=Sophos;i="6.11,199,1725346800"; d="scan'208";a="29560725" Received: from fmviesa004.fm.intel.com ([10.60.135.144]) by orvoesa111.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Oct 2024 03:03:53 -0700 X-CSE-ConnectionGUID: PRV5OX/dQ7GZjkY65wbARw== X-CSE-MsgGUID: xpwCXzbESBOsYVBKwhZtCA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.11,238,1725346800"; d="scan'208";a="86182287" Received: from gk3153-dr2-r750-36946.igk.intel.com ([10.102.20.192]) by fmviesa004.fm.intel.com with ESMTP; 28 Oct 2024 03:03:48 -0700 From: Michal Swiatkowski To: intel-wired-lan@lists.osuosl.org Cc: netdev@vger.kernel.org, pawel.chmielewski@intel.com, sridhar.samudrala@intel.com, jacob.e.keller@intel.com, pio.raczynski@gmail.com, konrad.knitter@intel.com, marcin.szycik@intel.com, wojciech.drewek@intel.com, nex.sw.ncis.nat.hpm.dev@intel.com, przemyslaw.kitszel@intel.com, jiri@resnulli.us, horms@kernel.org, David.Laight@ACULAB.COM Subject: [iwl-next v6 2/9] ice: devlink PF MSI-X max and min parameter Date: Mon, 28 Oct 2024 11:03:34 +0100 Message-ID: <20241028100341.16631-3-michal.swiatkowski@linux.intel.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20241028100341.16631-1-michal.swiatkowski@linux.intel.com> References: <20241028100341.16631-1-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 Use generic devlink PF MSI-X parameter to allow user to change MSI-X range. Add notes about this parameters into ice devlink documentation. Reviewed-by: Wojciech Drewek Signed-off-by: Michal Swiatkowski --- Documentation/networking/devlink/ice.rst | 11 +++ .../net/ethernet/intel/ice/devlink/devlink.c | 83 ++++++++++++++++++- drivers/net/ethernet/intel/ice/ice.h | 7 ++ drivers/net/ethernet/intel/ice/ice_irq.c | 7 ++ 4 files changed, 107 insertions(+), 1 deletion(-) diff --git a/Documentation/networking/devlink/ice.rst b/Documentation/networking/devlink/ice.rst index e3972d03cea0..792e9f8c846a 100644 --- a/Documentation/networking/devlink/ice.rst +++ b/Documentation/networking/devlink/ice.rst @@ -69,6 +69,17 @@ Parameters To verify that value has been set: $ devlink dev param show pci/0000:16:00.0 name tx_scheduling_layers + * - ``msix_vec_per_pf_max`` + - driverinit + - Set the max MSI-X that can be used by the PF, rest can be utilized for + SRIOV. The range is from min value set in msix_vec_per_pf_min to + 2k/number of ports. + * - ``msix_vec_per_pf_min`` + - driverinit + - Set the min MSI-X that will be used by the PF. This value inform how many + MSI-X will be allocated statically. The range is from 2 to value set + in msix_vec_per_pf_max. + .. list-table:: Driver specific parameters implemented :widths: 5 5 90 diff --git a/drivers/net/ethernet/intel/ice/devlink/devlink.c b/drivers/net/ethernet/intel/ice/devlink/devlink.c index d1b9ccec5e05..29c1fec4fa93 100644 --- a/drivers/net/ethernet/intel/ice/devlink/devlink.c +++ b/drivers/net/ethernet/intel/ice/devlink/devlink.c @@ -1198,6 +1198,25 @@ static int ice_devlink_set_parent(struct devlink_rate *devlink_rate, return status; } +static void ice_set_min_max_msix(struct ice_pf *pf) +{ + struct devlink *devlink = priv_to_devlink(pf); + union devlink_param_value val; + int err; + + err = devl_param_driverinit_value_get(devlink, + DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN, + &val); + if (!err) + pf->msix.min = val.vu16; + + err = devl_param_driverinit_value_get(devlink, + DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX, + &val); + if (!err) + pf->msix.max = val.vu16; +} + /** * ice_devlink_reinit_up - do reinit of the given PF * @pf: pointer to the PF struct @@ -1207,6 +1226,9 @@ static int ice_devlink_reinit_up(struct ice_pf *pf) struct ice_vsi *vsi = ice_get_main_vsi(pf); int err; + /* load MSI-X values */ + ice_set_min_max_msix(pf); + err = ice_init_hw(&pf->hw); if (err) { dev_err(ice_pf_to_dev(pf), "ice_init_hw failed: %d\n", err); @@ -1526,6 +1548,37 @@ static int ice_devlink_local_fwd_validate(struct devlink *devlink, u32 id, return 0; } +static int +ice_devlink_msix_max_pf_validate(struct devlink *devlink, u32 id, + union devlink_param_value val, + struct netlink_ext_ack *extack) +{ + struct ice_pf *pf = devlink_priv(devlink); + + if (val.vu16 > pf->hw.func_caps.common_cap.num_msix_vectors || + val.vu16 < pf->msix.min) { + NL_SET_ERR_MSG_MOD(extack, "Value is invalid"); + return -EINVAL; + } + + return 0; +} + +static int +ice_devlink_msix_min_pf_validate(struct devlink *devlink, u32 id, + union devlink_param_value val, + struct netlink_ext_ack *extack) +{ + struct ice_pf *pf = devlink_priv(devlink); + + if (val.vu16 <= ICE_MIN_MSIX || val.vu16 > pf->msix.max) { + NL_SET_ERR_MSG_MOD(extack, "Value is invalid"); + return -EINVAL; + } + + return 0; +} + enum ice_param_id { ICE_DEVLINK_PARAM_ID_BASE = DEVLINK_PARAM_GENERIC_ID_MAX, ICE_DEVLINK_PARAM_ID_TX_SCHED_LAYERS, @@ -1543,6 +1596,15 @@ static const struct devlink_param ice_dvl_rdma_params[] = { ice_devlink_enable_iw_validate), }; +static const struct devlink_param ice_dvl_msix_params[] = { + DEVLINK_PARAM_GENERIC(MSIX_VEC_PER_PF_MAX, + BIT(DEVLINK_PARAM_CMODE_DRIVERINIT), + NULL, NULL, ice_devlink_msix_max_pf_validate), + DEVLINK_PARAM_GENERIC(MSIX_VEC_PER_PF_MIN, + BIT(DEVLINK_PARAM_CMODE_DRIVERINIT), + NULL, NULL, ice_devlink_msix_min_pf_validate), +}; + static const struct devlink_param ice_dvl_sched_params[] = { DEVLINK_PARAM_DRIVER(ICE_DEVLINK_PARAM_ID_TX_SCHED_LAYERS, "tx_scheduling_layers", @@ -1644,6 +1706,7 @@ void ice_devlink_unregister(struct ice_pf *pf) int ice_devlink_register_params(struct ice_pf *pf) { struct devlink *devlink = priv_to_devlink(pf); + union devlink_param_value value; struct ice_hw *hw = &pf->hw; int status; @@ -1652,11 +1715,27 @@ int ice_devlink_register_params(struct ice_pf *pf) if (status) return status; + status = devl_params_register(devlink, ice_dvl_msix_params, + ARRAY_SIZE(ice_dvl_msix_params)); + if (status) + return status; + if (hw->func_caps.common_cap.tx_sched_topo_comp_mode_en) status = devl_params_register(devlink, ice_dvl_sched_params, ARRAY_SIZE(ice_dvl_sched_params)); + if (status) + return status; - return status; + value.vu16 = pf->msix.max; + devl_param_driverinit_value_set(devlink, + DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX, + value); + value.vu16 = pf->msix.min; + devl_param_driverinit_value_set(devlink, + DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN, + value); + + return 0; } void ice_devlink_unregister_params(struct ice_pf *pf) @@ -1666,6 +1745,8 @@ void ice_devlink_unregister_params(struct ice_pf *pf) devl_params_unregister(devlink, ice_dvl_rdma_params, ARRAY_SIZE(ice_dvl_rdma_params)); + devl_params_unregister(devlink, ice_dvl_msix_params, + ARRAY_SIZE(ice_dvl_msix_params)); if (hw->func_caps.common_cap.tx_sched_topo_comp_mode_en) devl_params_unregister(devlink, ice_dvl_sched_params, diff --git a/drivers/net/ethernet/intel/ice/ice.h b/drivers/net/ethernet/intel/ice/ice.h index 7997745686b3..c6cd7e993ed8 100644 --- a/drivers/net/ethernet/intel/ice/ice.h +++ b/drivers/net/ethernet/intel/ice/ice.h @@ -543,6 +543,12 @@ struct ice_agg_node { u8 valid; }; +struct ice_pf_msix { + u16 cur; + u16 min; + u16 max; +}; + struct ice_pf { struct pci_dev *pdev; struct ice_adapter *adapter; @@ -613,6 +619,7 @@ struct ice_pf { struct msi_map ll_ts_irq; /* LL_TS interrupt MSIX vector */ u16 max_pf_txqs; /* Total Tx queues PF wide */ u16 max_pf_rxqs; /* Total Rx queues PF wide */ + struct ice_pf_msix msix; u16 num_lan_msix; /* Total MSIX vectors for base driver */ u16 num_lan_tx; /* num LAN Tx queues setup */ u16 num_lan_rx; /* num LAN Rx queues setup */ diff --git a/drivers/net/ethernet/intel/ice/ice_irq.c b/drivers/net/ethernet/intel/ice/ice_irq.c index ad82ff7d1995..0659b96b9b8c 100644 --- a/drivers/net/ethernet/intel/ice/ice_irq.c +++ b/drivers/net/ethernet/intel/ice/ice_irq.c @@ -254,6 +254,13 @@ int ice_init_interrupt_scheme(struct ice_pf *pf) int total_vectors = pf->hw.func_caps.common_cap.num_msix_vectors; int vectors, max_vectors; + /* load default PF MSI-X range */ + if (!pf->msix.min) + pf->msix.min = ICE_MIN_MSIX; + + if (!pf->msix.max) + pf->msix.max = total_vectors / 2; + vectors = ice_ena_msix_range(pf); if (vectors < 0)