From patchwork Wed Aug 21 12:15:29 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wojciech Drewek X-Patchwork-Id: 13771305 X-Patchwork-Delegate: kuba@kernel.org Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.10]) (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 7B18E166F28 for ; Wed, 21 Aug 2024 12:18:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.10 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724242717; cv=none; b=khK2NFaRJ17m3VsfSLoLlCGiUB1zq4Tq+5bFjsfQ1Px3fg+nn0Tm5d2CUo31azN+/0YxlX0BPprRGaYK5Jg/Yz8bkUaxS+JrW/KG3xtQwTfr92U7NG88LUOgA0YqlGnjYvnE/Y/A4LIuXfgFR06lBmVwtiKPIx/2GERjWM5AsnU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724242717; c=relaxed/simple; bh=LySQlE1dphk++uSE/7p6e7qc7fLfQaWIm2IQPfkOAH4=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=RVI/XPXuJx8QvTPr7AO7UaKbuY1D9XZRid1HSMM5Zp0cTkTa0ygYzr60BuN/BYnNr+fv/K/ifBsusqjoV1wPPb96OZV/Rj/wAl5iUCieU7xlyxxRkrsHabHrx+C/WdilhxKlxhI6G/mnNz43PihYgl6dYhkzcnB5e6pTQRhoPZ4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=LcjNncw1; arc=none smtp.client-ip=192.198.163.10 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="LcjNncw1" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1724242715; x=1755778715; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=LySQlE1dphk++uSE/7p6e7qc7fLfQaWIm2IQPfkOAH4=; b=LcjNncw1rQbNY23FgYkgdTeYDYCq1ZJlycxrI8TwNsYdyZqW1UXVoSL4 vxCi26bE1vIIs9jbwEZp7ggFuJd8WfCvCeNfz0xtp1vV/gcErfNzXt8HT PYX7+hpEAZ2tq93nEXhLhEP4maA6dkZO88Xd+nml34S5Q/Q2rdptnvY3n d1YLh5ZXPgLPrPq83nPX0ipXmiMn6x3sTM4piJmnTriaTGKzSl8O0Fhzl U1jE9VqF0yjlIWr826t2Zw5n3KST3Syt5aPeXP3qenf7oTEI7uLnLo5ly VnrYx+bsMa5+ztqJ1WvWRiw6kYo7lyOSn4ui9nHO67xCyCL5gV55eBqCh w==; X-CSE-ConnectionGUID: fFXUW2LXSlm9d6ce4dD1iQ== X-CSE-MsgGUID: VcM5HNl8QXeW6PHlSi7QHg== X-IronPort-AV: E=McAfee;i="6700,10204,11171"; a="34017091" X-IronPort-AV: E=Sophos;i="6.10,164,1719903600"; d="scan'208";a="34017091" Received: from fmviesa006.fm.intel.com ([10.60.135.146]) by fmvoesa104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Aug 2024 05:18:19 -0700 X-CSE-ConnectionGUID: cbJr7hcoT/iDlwEaIVGJBg== X-CSE-MsgGUID: gdXjlKUATnCSe/zmNRsDxQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.10,164,1719903600"; d="scan'208";a="60732482" Received: from irvmail002.ir.intel.com ([10.43.11.120]) by fmviesa006.fm.intel.com with ESMTP; 21 Aug 2024 05:18:16 -0700 Received: from rozewie.igk.intel.com (rozewie.igk.intel.com [10.211.8.69]) by irvmail002.ir.intel.com (Postfix) with ESMTP id 0064828793; Wed, 21 Aug 2024 13:18:14 +0100 (IST) From: Wojciech Drewek To: netdev@vger.kernel.org Cc: intel-wired-lan@lists.osuosl.org, horms@kernel.org, anthony.l.nguyen@intel.com, kuba@kernel.org, alexandr.lobakin@intel.com Subject: [PATCH iwl-next v10 04/14] iavf: add support for negotiating flexible RXDID format Date: Wed, 21 Aug 2024 14:15:29 +0200 Message-Id: <20240821121539.374343-5-wojciech.drewek@intel.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20240821121539.374343-1-wojciech.drewek@intel.com> References: <20240821121539.374343-1-wojciech.drewek@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: Jacob Keller Enable support for VIRTCHNL_VF_OFFLOAD_RX_FLEX_DESC, to enable the VF driver the ability to determine what Rx descriptor formats are available. This requires sending an additional message during initialization and reset, the VIRTCHNL_OP_GET_SUPPORTED_RXDIDS. This operation requests the supported Rx descriptor IDs available from the PF. This is treated the same way that VLAN V2 capabilities are handled. Add a new set of extended capability flags, used to process send and receipt of the VIRTCHNL_OP_GET_SUPPORTED_RXDIDS message. This ensures we finish negotiating for the supported descriptor formats prior to beginning configuration of receive queues. This change stores the supported format bitmap into the iavf_adapter structure. Additionally, if VIRTCHNL_VF_OFFLOAD_RX_FLEX_DESC is enabled by the PF, we need to make sure that the Rx queue configuration specifies the format. Signed-off-by: Jacob Keller Reviewed-by: Wojciech Drewek Reviewed-by: Simon Horman Co-developed-by: Mateusz Polchlopek Signed-off-by: Mateusz Polchlopek Signed-off-by: Wojciech Drewek --- drivers/net/ethernet/intel/iavf/iavf.h | 20 ++- drivers/net/ethernet/intel/iavf/iavf_main.c | 123 ++++++++++++++++-- drivers/net/ethernet/intel/iavf/iavf_txrx.h | 2 + .../net/ethernet/intel/iavf/iavf_virtchnl.c | 51 ++++++++ drivers/net/ethernet/intel/ice/ice_virtchnl.c | 23 +--- include/linux/avf/virtchnl.h | 5 - 6 files changed, 194 insertions(+), 30 deletions(-) diff --git a/drivers/net/ethernet/intel/iavf/iavf.h b/drivers/net/ethernet/intel/iavf/iavf.h index 48cd1d06761c..f1506b3d01ce 100644 --- a/drivers/net/ethernet/intel/iavf/iavf.h +++ b/drivers/net/ethernet/intel/iavf/iavf.h @@ -267,6 +267,7 @@ struct iavf_adapter { /* Lock to protect accesses to MAC and VLAN lists */ spinlock_t mac_vlan_list_lock; char misc_vector_name[IFNAMSIZ + 9]; + u8 rxdid; int num_active_queues; int num_req_queues; @@ -336,6 +337,14 @@ struct iavf_adapter { #define IAVF_FLAG_AQ_DISABLE_CTAG_VLAN_INSERTION BIT_ULL(36) #define IAVF_FLAG_AQ_ENABLE_STAG_VLAN_INSERTION BIT_ULL(37) #define IAVF_FLAG_AQ_DISABLE_STAG_VLAN_INSERTION BIT_ULL(38) +#define IAVF_FLAG_AQ_GET_SUPPORTED_RXDIDS BIT_ULL(39) + + /* AQ messages that must be sent after IAVF_FLAG_AQ_GET_CONFIG, in + * order to negotiated extended capabilities. + */ +#define IAVF_FLAG_AQ_EXTENDED_CAPS \ + (IAVF_FLAG_AQ_GET_OFFLOAD_VLAN_V2_CAPS | \ + IAVF_FLAG_AQ_GET_SUPPORTED_RXDIDS) /* flags for processing extended capability messages during * __IAVF_INIT_EXTENDED_CAPS. Each capability exchange requires @@ -347,10 +356,14 @@ struct iavf_adapter { u64 extended_caps; #define IAVF_EXTENDED_CAP_SEND_VLAN_V2 BIT_ULL(0) #define IAVF_EXTENDED_CAP_RECV_VLAN_V2 BIT_ULL(1) +#define IAVF_EXTENDED_CAP_SEND_RXDID BIT_ULL(2) +#define IAVF_EXTENDED_CAP_RECV_RXDID BIT_ULL(3) #define IAVF_EXTENDED_CAPS \ (IAVF_EXTENDED_CAP_SEND_VLAN_V2 | \ - IAVF_EXTENDED_CAP_RECV_VLAN_V2) + IAVF_EXTENDED_CAP_RECV_VLAN_V2 | \ + IAVF_EXTENDED_CAP_SEND_RXDID | \ + IAVF_EXTENDED_CAP_RECV_RXDID) /* Lock to prevent possible clobbering of * current_netdev_promisc_flags @@ -408,12 +421,15 @@ struct iavf_adapter { VIRTCHNL_VF_OFFLOAD_FDIR_PF) #define ADV_RSS_SUPPORT(_a) ((_a)->vf_res->vf_cap_flags & \ VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF) +#define IAVF_RXDID_ALLOWED(a) ((a)->vf_res->vf_cap_flags & \ + VIRTCHNL_VF_OFFLOAD_RX_FLEX_DESC) struct virtchnl_vf_resource *vf_res; /* incl. all VSIs */ struct virtchnl_vsi_resource *vsi_res; /* our LAN VSI */ struct virtchnl_version_info pf_version; #define PF_IS_V11(_a) (((_a)->pf_version.major == 1) && \ ((_a)->pf_version.minor == 1)) struct virtchnl_vlan_caps vlan_v2_caps; + u64 supp_rxdids; u16 msg_enable; struct iavf_eth_stats current_stats; struct iavf_vsi vsi; @@ -551,6 +567,8 @@ int iavf_send_vf_config_msg(struct iavf_adapter *adapter); int iavf_get_vf_config(struct iavf_adapter *adapter); int iavf_get_vf_vlan_v2_caps(struct iavf_adapter *adapter); int iavf_send_vf_offload_vlan_v2_msg(struct iavf_adapter *adapter); +int iavf_send_vf_supported_rxdids_msg(struct iavf_adapter *adapter); +int iavf_get_vf_supported_rxdids(struct iavf_adapter *adapter); void iavf_set_queue_vlan_tag_loc(struct iavf_adapter *adapter); u16 iavf_get_num_vlans_added(struct iavf_adapter *adapter); void iavf_irq_enable(struct iavf_adapter *adapter, bool flush); diff --git a/drivers/net/ethernet/intel/iavf/iavf_main.c b/drivers/net/ethernet/intel/iavf/iavf_main.c index f782402cd789..df905b2dea28 100644 --- a/drivers/net/ethernet/intel/iavf/iavf_main.c +++ b/drivers/net/ethernet/intel/iavf/iavf_main.c @@ -709,6 +709,38 @@ static void iavf_configure_tx(struct iavf_adapter *adapter) adapter->tx_rings[i].tail = hw->hw_addr + IAVF_QTX_TAIL1(i); } +/** + * iavf_select_rx_desc_format - Select Rx descriptor format + * @adapter: adapter private structure + * + * Select what Rx descriptor format based on availability and enabled + * features. + * + * Return: the desired RXDID to select for a given Rx queue, as defined by + * enum virtchnl_rxdid_format. + */ +static u8 iavf_select_rx_desc_format(const struct iavf_adapter *adapter) +{ + u64 rxdids = adapter->supp_rxdids; + + /* If we did not negotiate VIRTCHNL_VF_OFFLOAD_RX_FLEX_DESC, we must + * stick with the default value of the legacy 32 byte format. + */ + if (!IAVF_RXDID_ALLOWED(adapter)) + return VIRTCHNL_RXDID_1_32B_BASE; + + /* Warn if the PF does not list support for the default legacy + * descriptor format. This shouldn't happen, as this is the format + * used if VIRTCHNL_VF_OFFLOAD_RX_FLEX_DESC is not supported. It is + * likely caused by a bug in the PF implementation failing to indicate + * support for the format. + */ + if (!(rxdids & VIRTCHNL_RXDID_1_32B_BASE_M)) + dev_warn(&adapter->pdev->dev, "PF does not list support for default Rx descriptor format\n"); + + return VIRTCHNL_RXDID_1_32B_BASE; +} + /** * iavf_configure_rx - Configure Receive Unit after Reset * @adapter: board private structure @@ -719,8 +751,12 @@ static void iavf_configure_rx(struct iavf_adapter *adapter) { struct iavf_hw *hw = &adapter->hw; - for (u32 i = 0; i < adapter->num_active_queues; i++) + adapter->rxdid = iavf_select_rx_desc_format(adapter); + + for (u32 i = 0; i < adapter->num_active_queues; i++) { adapter->rx_rings[i].tail = hw->hw_addr + IAVF_QRX_TAIL1(i); + adapter->rx_rings[i].rxdid = adapter->rxdid; + } } /** @@ -2045,6 +2081,8 @@ static int iavf_process_aq_command(struct iavf_adapter *adapter) return iavf_send_vf_config_msg(adapter); if (adapter->aq_required & IAVF_FLAG_AQ_GET_OFFLOAD_VLAN_V2_CAPS) return iavf_send_vf_offload_vlan_v2_msg(adapter); + if (adapter->aq_required & IAVF_FLAG_AQ_GET_SUPPORTED_RXDIDS) + return iavf_send_vf_supported_rxdids_msg(adapter); if (adapter->aq_required & IAVF_FLAG_AQ_DISABLE_QUEUES) { iavf_disable_queues(adapter); return 0; @@ -2558,6 +2596,63 @@ static void iavf_init_recv_offload_vlan_v2_caps(struct iavf_adapter *adapter) iavf_change_state(adapter, __IAVF_INIT_FAILED); } +/** + * iavf_init_send_supported_rxdids - part of querying for supported RXDID + * formats + * @adapter: board private structure + * + * Function processes send of the request for supported RXDIDs to the PF. + * Must clear IAVF_EXTENDED_CAP_RECV_RXDID if the message is not sent, e.g. + * due to the PF not negotiating VIRTCHNL_VF_OFFLOAD_RX_FLEX_DESC. + */ +static void iavf_init_send_supported_rxdids(struct iavf_adapter *adapter) +{ + int ret; + + ret = iavf_send_vf_supported_rxdids_msg(adapter); + if (ret == -EOPNOTSUPP) { + /* PF does not support VIRTCHNL_VF_OFFLOAD_RX_FLEX_DESC. In this + * case, we did not send the capability exchange message and + * do not expect a response. + */ + adapter->extended_caps &= ~IAVF_EXTENDED_CAP_RECV_RXDID; + } + + /* We sent the message, so move on to the next step */ + adapter->extended_caps &= ~IAVF_EXTENDED_CAP_SEND_RXDID; +} + +/** + * iavf_init_recv_supported_rxdids - part of querying for supported RXDID + * formats + * @adapter: board private structure + * + * Function processes receipt of the supported RXDIDs message from the PF. + **/ +static void iavf_init_recv_supported_rxdids(struct iavf_adapter *adapter) +{ + int ret; + + memset(&adapter->supp_rxdids, 0, sizeof(adapter->supp_rxdids)); + + ret = iavf_get_vf_supported_rxdids(adapter); + if (ret) + goto err; + + /* We've processed the PF response to the + * VIRTCHNL_OP_GET_SUPPORTED_RXDIDS message we sent previously. + */ + adapter->extended_caps &= ~IAVF_EXTENDED_CAP_RECV_RXDID; + return; + +err: + /* We didn't receive a reply. Make sure we try sending again when + * __IAVF_INIT_FAILED attempts to recover. + */ + adapter->extended_caps |= IAVF_EXTENDED_CAP_SEND_RXDID; + iavf_change_state(adapter, __IAVF_INIT_FAILED); +} + /** * iavf_init_process_extended_caps - Part of driver startup * @adapter: board private structure @@ -2582,6 +2677,15 @@ static void iavf_init_process_extended_caps(struct iavf_adapter *adapter) return; } + /* Process capability exchange for RXDID formats */ + if (adapter->extended_caps & IAVF_EXTENDED_CAP_SEND_RXDID) { + iavf_init_send_supported_rxdids(adapter); + return; + } else if (adapter->extended_caps & IAVF_EXTENDED_CAP_RECV_RXDID) { + iavf_init_recv_supported_rxdids(adapter); + return; + } + /* When we reach here, no further extended capabilities exchanges are * necessary, so we finally transition into __IAVF_INIT_CONFIG_ADAPTER */ @@ -3050,15 +3154,18 @@ static void iavf_reset_task(struct work_struct *work) } adapter->aq_required |= IAVF_FLAG_AQ_GET_CONFIG; - /* always set since VIRTCHNL_OP_GET_VF_RESOURCES has not been - * sent/received yet, so VLAN_V2_ALLOWED() cannot is not reliable here, - * however the VIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS won't be sent until - * VIRTCHNL_OP_GET_VF_RESOURCES and VIRTCHNL_VF_OFFLOAD_VLAN_V2 have - * been successfully sent and negotiated - */ - adapter->aq_required |= IAVF_FLAG_AQ_GET_OFFLOAD_VLAN_V2_CAPS; adapter->aq_required |= IAVF_FLAG_AQ_MAP_VECTORS; + /* Certain capabilities require an extended negotiation process using + * extra messages that must be processed after getting the VF + * configuration. The related checks such as VLAN_V2_ALLOWED() are not + * reliable here, since the configuration has not yet been negotiated. + * + * Always set these flags, since them related VIRTCHNL messages won't + * be sent until after VIRTCHNL_OP_GET_VF_RESOURCES. + */ + adapter->aq_required |= IAVF_FLAG_AQ_EXTENDED_CAPS; + spin_lock_bh(&adapter->mac_vlan_list_lock); /* Delete filter for the current MAC address, it could have diff --git a/drivers/net/ethernet/intel/iavf/iavf_txrx.h b/drivers/net/ethernet/intel/iavf/iavf_txrx.h index d7b5587aeb8e..e8421994235b 100644 --- a/drivers/net/ethernet/intel/iavf/iavf_txrx.h +++ b/drivers/net/ethernet/intel/iavf/iavf_txrx.h @@ -262,6 +262,8 @@ struct iavf_ring { u16 next_to_use; u16 next_to_clean; + u16 rxdid; /* Rx descriptor format */ + u16 flags; #define IAVF_TXR_FLAGS_WB_ON_ITR BIT(0) #define IAVF_TXR_FLAGS_ARM_WB BIT(1) diff --git a/drivers/net/ethernet/intel/iavf/iavf_virtchnl.c b/drivers/net/ethernet/intel/iavf/iavf_virtchnl.c index 7e810b65380c..bbd0eb06acd3 100644 --- a/drivers/net/ethernet/intel/iavf/iavf_virtchnl.c +++ b/drivers/net/ethernet/intel/iavf/iavf_virtchnl.c @@ -144,6 +144,7 @@ int iavf_send_vf_config_msg(struct iavf_adapter *adapter) VIRTCHNL_VF_OFFLOAD_ENCAP | VIRTCHNL_VF_OFFLOAD_TC_U32 | VIRTCHNL_VF_OFFLOAD_VLAN_V2 | + VIRTCHNL_VF_OFFLOAD_RX_FLEX_DESC | VIRTCHNL_VF_OFFLOAD_CRC | VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM | VIRTCHNL_VF_OFFLOAD_REQ_QUEUES | @@ -176,6 +177,19 @@ int iavf_send_vf_offload_vlan_v2_msg(struct iavf_adapter *adapter) NULL, 0); } +int iavf_send_vf_supported_rxdids_msg(struct iavf_adapter *adapter) +{ + adapter->aq_required &= ~IAVF_FLAG_AQ_GET_SUPPORTED_RXDIDS; + + if (!IAVF_RXDID_ALLOWED(adapter)) + return -EOPNOTSUPP; + + adapter->current_op = VIRTCHNL_OP_GET_SUPPORTED_RXDIDS; + + return iavf_send_pf_msg(adapter, VIRTCHNL_OP_GET_SUPPORTED_RXDIDS, + NULL, 0); +} + /** * iavf_validate_num_queues * @adapter: adapter structure @@ -262,6 +276,37 @@ int iavf_get_vf_vlan_v2_caps(struct iavf_adapter *adapter) return err; } +int iavf_get_vf_supported_rxdids(struct iavf_adapter *adapter) +{ + struct iavf_hw *hw = &adapter->hw; + struct iavf_arq_event_info event; + u32 len = sizeof(u64); + enum virtchnl_ops op; + enum iavf_status err; + u8 rxdids; + + event.msg_buf = &rxdids; + event.buf_len = len; + + while (1) { + /* When the AQ is empty, iavf_clean_arq_element will return + * nonzero and this loop will terminate. + */ + err = iavf_clean_arq_element(hw, &event, NULL); + if (err != IAVF_SUCCESS) + return err; + op = le32_to_cpu(event.desc.cookie_high); + if (op == VIRTCHNL_OP_GET_SUPPORTED_RXDIDS) + break; + } + + err = le32_to_cpu(event.desc.cookie_low); + if (!err) + adapter->supp_rxdids = rxdids; + + return 0; +} + /** * iavf_configure_queues * @adapter: adapter structure @@ -308,6 +353,8 @@ void iavf_configure_queues(struct iavf_adapter *adapter) vqpi->rxq.dma_ring_addr = adapter->rx_rings[i].dma; vqpi->rxq.max_pkt_size = max_frame; vqpi->rxq.databuffer_size = adapter->rx_rings[i].rx_buf_len; + if (IAVF_RXDID_ALLOWED(adapter)) + vqpi->rxq.rxdid = adapter->rxdid; if (CRC_OFFLOAD_ALLOWED(adapter)) vqpi->rxq.crc_disable = !!(adapter->netdev->features & NETIF_F_RXFCS); @@ -2372,6 +2419,10 @@ void iavf_virtchnl_completion(struct iavf_adapter *adapter, aq_required; } break; + case VIRTCHNL_OP_GET_SUPPORTED_RXDIDS: + memcpy(&adapter->supp_rxdids, msg, + min_t(u16, msglen, sizeof(adapter->supp_rxdids))); + break; case VIRTCHNL_OP_ENABLE_QUEUES: /* enable transmits */ iavf_irq_enable(adapter, true); diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl.c b/drivers/net/ethernet/intel/ice/ice_virtchnl.c index b60df6e9b3e7..3c2d6a504aa0 100644 --- a/drivers/net/ethernet/intel/ice/ice_virtchnl.c +++ b/drivers/net/ethernet/intel/ice/ice_virtchnl.c @@ -2709,12 +2709,12 @@ static int ice_vc_set_rss_hena(struct ice_vf *vf, u8 *msg) static int ice_vc_query_rxdid(struct ice_vf *vf) { enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS; - struct virtchnl_supported_rxdids *rxdid = NULL; struct ice_hw *hw = &vf->pf->hw; struct ice_pf *pf = vf->pf; - int len = 0; - int ret, i; + u32 len = sizeof(u64); u32 regval; + u64 rxdid; + int ret, i; if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; @@ -2726,34 +2726,25 @@ static int ice_vc_query_rxdid(struct ice_vf *vf) goto err; } - len = sizeof(struct virtchnl_supported_rxdids); - rxdid = kzalloc(len, GFP_KERNEL); - if (!rxdid) { - v_ret = VIRTCHNL_STATUS_ERR_NO_MEMORY; - len = 0; - goto err; - } - /* RXDIDs supported by DDP package can be read from the register * to get the supported RXDID bitmap. But the legacy 32byte RXDID * is not listed in DDP package, add it in the bitmap manually. * Legacy 16byte descriptor is not supported. */ - rxdid->supported_rxdids |= BIT(ICE_RXDID_LEGACY_1); + rxdid |= BIT(ICE_RXDID_LEGACY_1); for (i = ICE_RXDID_FLEX_NIC; i < ICE_FLEX_DESC_RXDID_MAX_NUM; i++) { regval = rd32(hw, GLFLXP_RXDID_FLAGS(i, 0)); if ((regval >> GLFLXP_RXDID_FLAGS_FLEXIFLAG_4N_S) & GLFLXP_RXDID_FLAGS_FLEXIFLAG_4N_M) - rxdid->supported_rxdids |= BIT(i); + rxdid |= BIT(i); } - pf->supported_rxdids = rxdid->supported_rxdids; + pf->supported_rxdids = rxdid; err: ret = ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_SUPPORTED_RXDIDS, - v_ret, (u8 *)rxdid, len); - kfree(rxdid); + v_ret, (u8 *)&rxdid, len); return ret; } diff --git a/include/linux/avf/virtchnl.h b/include/linux/avf/virtchnl.h index 2b8f915df012..d8f6687dfe47 100644 --- a/include/linux/avf/virtchnl.h +++ b/include/linux/avf/virtchnl.h @@ -1087,11 +1087,6 @@ struct virtchnl_filter { VIRTCHNL_CHECK_STRUCT_LEN(272, virtchnl_filter); -struct virtchnl_supported_rxdids { - /* see enum virtchnl_rx_desc_id_bitmasks */ - u64 supported_rxdids; -}; - /* VIRTCHNL_OP_EVENT * PF sends this message to inform the VF driver of events that may affect it. * No direct response is expected from the VF, though it may generate other