From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BBFD5C43381 for ; Sat, 23 Feb 2019 09:24:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7D521206BA for ; Sat, 23 Feb 2019 09:24:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727950AbfBWJX5 (ORCPT ); Sat, 23 Feb 2019 04:23:57 -0500 Received: from szxga05-in.huawei.com ([45.249.212.191]:4278 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727807AbfBWJXR (ORCPT ); Sat, 23 Feb 2019 04:23:17 -0500 Received: from DGGEMS407-HUB.china.huawei.com (unknown [172.30.72.59]) by Forcepoint Email with ESMTP id BC20C73E20399F010B00; Sat, 23 Feb 2019 17:23:07 +0800 (CST) Received: from localhost.localdomain (10.67.212.132) by DGGEMS407-HUB.china.huawei.com (10.3.19.207) with Microsoft SMTP Server id 14.3.408.0; Sat, 23 Feb 2019 17:23:00 +0800 From: Huazhong Tan To: CC: , , , , , Yunsheng Lin , Huazhong Tan Subject: [Patch net-next 06/12] net: hns3: replace hnae3_set_bit and hnae3_set_field in data path Date: Sat, 23 Feb 2019 17:22:13 +0800 Message-ID: <1550913739-13232-7-git-send-email-tanhuazhong@huawei.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1550913739-13232-1-git-send-email-tanhuazhong@huawei.com> References: <1550913739-13232-1-git-send-email-tanhuazhong@huawei.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.67.212.132] X-CFilter-Loop: Reflected Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Yunsheng Lin hnae3_set_bit and hnae3_set_field masks the data before setting the field or bit, which is unnecessary because the data is already zero initialized. Suggested-by: John Garry Signed-off-by: Yunsheng Lin Signed-off-by: Huazhong Tan --- drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 120 ++++++++++-------------- 1 file changed, 51 insertions(+), 69 deletions(-) diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c index 50bfdba..ce9878b 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c @@ -21,6 +21,8 @@ #include "hnae3.h" #include "hns3_enet.h" +#define hns3_set_field(origin, shift, val) ((origin) |= ((val) << (shift))) + static void hns3_clear_all_ring(struct hnae3_handle *h); static void hns3_force_clear_all_rx_ring(struct hnae3_handle *h); static void hns3_remove_hw_addr(struct net_device *netdev); @@ -667,8 +669,7 @@ static int hns3_set_tso(struct sk_buff *skb, u32 *paylen, /* find the txbd field values */ *paylen = skb->len - hdr_len; - hnae3_set_bit(*type_cs_vlan_tso, - HNS3_TXD_TSO_B, 1); + hns3_set_field(*type_cs_vlan_tso, HNS3_TXD_TSO_B, 1); /* get MSS for TSO */ *mss = skb_shinfo(skb)->gso_size; @@ -747,21 +748,19 @@ static void hns3_set_l2l3l4_len(struct sk_buff *skb, u8 ol4_proto, /* compute L2 header size for normal packet, defined in 2 Bytes */ l2_len = l3.hdr - skb->data; - hnae3_set_field(*type_cs_vlan_tso, HNS3_TXD_L2LEN_M, - HNS3_TXD_L2LEN_S, l2_len >> 1); + hns3_set_field(*type_cs_vlan_tso, HNS3_TXD_L2LEN_S, l2_len >> 1); /* tunnel packet*/ if (skb->encapsulation) { /* compute OL2 header size, defined in 2 Bytes */ ol2_len = l2_len; - hnae3_set_field(*ol_type_vlan_len_msec, - HNS3_TXD_L2LEN_M, - HNS3_TXD_L2LEN_S, ol2_len >> 1); + hns3_set_field(*ol_type_vlan_len_msec, + HNS3_TXD_L2LEN_S, ol2_len >> 1); /* compute OL3 header size, defined in 4 Bytes */ ol3_len = l4.hdr - l3.hdr; - hnae3_set_field(*ol_type_vlan_len_msec, HNS3_TXD_L3LEN_M, - HNS3_TXD_L3LEN_S, ol3_len >> 2); + hns3_set_field(*ol_type_vlan_len_msec, HNS3_TXD_L3LEN_S, + ol3_len >> 2); /* MAC in UDP, MAC in GRE (0x6558)*/ if ((ol4_proto == IPPROTO_UDP) || (ol4_proto == IPPROTO_GRE)) { @@ -770,17 +769,16 @@ static void hns3_set_l2l3l4_len(struct sk_buff *skb, u8 ol4_proto, /* compute OL4 header size, defined in 4 Bytes. */ ol4_len = l2_hdr - l4.hdr; - hnae3_set_field(*ol_type_vlan_len_msec, - HNS3_TXD_L4LEN_M, HNS3_TXD_L4LEN_S, - ol4_len >> 2); + hns3_set_field(*ol_type_vlan_len_msec, + HNS3_TXD_L4LEN_S, ol4_len >> 2); /* switch IP header ptr from outer to inner header */ l3.hdr = skb_inner_network_header(skb); /* compute inner l2 header size, defined in 2 Bytes. */ l2_len = l3.hdr - l2_hdr; - hnae3_set_field(*type_cs_vlan_tso, HNS3_TXD_L2LEN_M, - HNS3_TXD_L2LEN_S, l2_len >> 1); + hns3_set_field(*type_cs_vlan_tso, HNS3_TXD_L2LEN_S, + l2_len >> 1); } else { /* skb packet types not supported by hardware, * txbd len fild doesn't be filled. @@ -796,24 +794,21 @@ static void hns3_set_l2l3l4_len(struct sk_buff *skb, u8 ol4_proto, /* compute inner(/normal) L3 header size, defined in 4 Bytes */ l3_len = l4.hdr - l3.hdr; - hnae3_set_field(*type_cs_vlan_tso, HNS3_TXD_L3LEN_M, - HNS3_TXD_L3LEN_S, l3_len >> 2); + hns3_set_field(*type_cs_vlan_tso, HNS3_TXD_L3LEN_S, l3_len >> 2); /* compute inner(/normal) L4 header size, defined in 4 Bytes */ switch (l4_proto) { case IPPROTO_TCP: - hnae3_set_field(*type_cs_vlan_tso, HNS3_TXD_L4LEN_M, - HNS3_TXD_L4LEN_S, l4.tcp->doff); + hns3_set_field(*type_cs_vlan_tso, HNS3_TXD_L4LEN_S, + l4.tcp->doff); break; case IPPROTO_SCTP: - hnae3_set_field(*type_cs_vlan_tso, HNS3_TXD_L4LEN_M, - HNS3_TXD_L4LEN_S, - (sizeof(struct sctphdr) >> 2)); + hns3_set_field(*type_cs_vlan_tso, HNS3_TXD_L4LEN_S, + (sizeof(struct sctphdr) >> 2)); break; case IPPROTO_UDP: - hnae3_set_field(*type_cs_vlan_tso, HNS3_TXD_L4LEN_M, - HNS3_TXD_L4LEN_S, - (sizeof(struct udphdr) >> 2)); + hns3_set_field(*type_cs_vlan_tso, HNS3_TXD_L4LEN_S, + (sizeof(struct udphdr) >> 2)); break; default: /* skb packet types not supported by hardware, @@ -858,34 +853,30 @@ static int hns3_set_l3l4_type_csum(struct sk_buff *skb, u8 ol4_proto, /* define outer network header type.*/ if (skb->protocol == htons(ETH_P_IP)) { if (skb_is_gso(skb)) - hnae3_set_field(*ol_type_vlan_len_msec, - HNS3_TXD_OL3T_M, - HNS3_TXD_OL3T_S, - HNS3_OL3T_IPV4_CSUM); + hns3_set_field(*ol_type_vlan_len_msec, + HNS3_TXD_OL3T_S, + HNS3_OL3T_IPV4_CSUM); else - hnae3_set_field(*ol_type_vlan_len_msec, - HNS3_TXD_OL3T_M, - HNS3_TXD_OL3T_S, - HNS3_OL3T_IPV4_NO_CSUM); + hns3_set_field(*ol_type_vlan_len_msec, + HNS3_TXD_OL3T_S, + HNS3_OL3T_IPV4_NO_CSUM); } else if (skb->protocol == htons(ETH_P_IPV6)) { - hnae3_set_field(*ol_type_vlan_len_msec, HNS3_TXD_OL3T_M, - HNS3_TXD_OL3T_S, HNS3_OL3T_IPV6); + hns3_set_field(*ol_type_vlan_len_msec, HNS3_TXD_OL3T_S, + HNS3_OL3T_IPV6); } /* define tunnel type(OL4).*/ switch (l4_proto) { case IPPROTO_UDP: - hnae3_set_field(*ol_type_vlan_len_msec, - HNS3_TXD_TUNTYPE_M, - HNS3_TXD_TUNTYPE_S, - HNS3_TUN_MAC_IN_UDP); + hns3_set_field(*ol_type_vlan_len_msec, + HNS3_TXD_TUNTYPE_S, + HNS3_TUN_MAC_IN_UDP); break; case IPPROTO_GRE: - hnae3_set_field(*ol_type_vlan_len_msec, - HNS3_TXD_TUNTYPE_M, - HNS3_TXD_TUNTYPE_S, - HNS3_TUN_NVGRE); + hns3_set_field(*ol_type_vlan_len_msec, + HNS3_TXD_TUNTYPE_S, + HNS3_TUN_NVGRE); break; default: /* drop the skb tunnel packet if hardware don't support, @@ -906,43 +897,37 @@ static int hns3_set_l3l4_type_csum(struct sk_buff *skb, u8 ol4_proto, } if (l3.v4->version == 4) { - hnae3_set_field(*type_cs_vlan_tso, HNS3_TXD_L3T_M, - HNS3_TXD_L3T_S, HNS3_L3T_IPV4); + hns3_set_field(*type_cs_vlan_tso, HNS3_TXD_L3T_S, + HNS3_L3T_IPV4); /* the stack computes the IP header already, the only time we * need the hardware to recompute it is in the case of TSO. */ if (skb_is_gso(skb)) - hnae3_set_bit(*type_cs_vlan_tso, HNS3_TXD_L3CS_B, 1); + hns3_set_field(*type_cs_vlan_tso, HNS3_TXD_L3CS_B, 1); } else if (l3.v6->version == 6) { - hnae3_set_field(*type_cs_vlan_tso, HNS3_TXD_L3T_M, - HNS3_TXD_L3T_S, HNS3_L3T_IPV6); + hns3_set_field(*type_cs_vlan_tso, HNS3_TXD_L3T_S, + HNS3_L3T_IPV6); } switch (l4_proto) { case IPPROTO_TCP: - hnae3_set_bit(*type_cs_vlan_tso, HNS3_TXD_L4CS_B, 1); - hnae3_set_field(*type_cs_vlan_tso, - HNS3_TXD_L4T_M, - HNS3_TXD_L4T_S, - HNS3_L4T_TCP); + hns3_set_field(*type_cs_vlan_tso, HNS3_TXD_L4CS_B, 1); + hns3_set_field(*type_cs_vlan_tso, HNS3_TXD_L4T_S, + HNS3_L4T_TCP); break; case IPPROTO_UDP: if (hns3_tunnel_csum_bug(skb)) break; - hnae3_set_bit(*type_cs_vlan_tso, HNS3_TXD_L4CS_B, 1); - hnae3_set_field(*type_cs_vlan_tso, - HNS3_TXD_L4T_M, - HNS3_TXD_L4T_S, - HNS3_L4T_UDP); + hns3_set_field(*type_cs_vlan_tso, HNS3_TXD_L4CS_B, 1); + hns3_set_field(*type_cs_vlan_tso, HNS3_TXD_L4T_S, + HNS3_L4T_UDP); break; case IPPROTO_SCTP: - hnae3_set_bit(*type_cs_vlan_tso, HNS3_TXD_L4CS_B, 1); - hnae3_set_field(*type_cs_vlan_tso, - HNS3_TXD_L4T_M, - HNS3_TXD_L4T_S, - HNS3_L4T_SCTP); + hns3_set_field(*type_cs_vlan_tso, HNS3_TXD_L4CS_B, 1); + hns3_set_field(*type_cs_vlan_tso, HNS3_TXD_L4T_S, + HNS3_L4T_SCTP); break; default: /* drop the skb tunnel packet if hardware don't support, @@ -964,11 +949,8 @@ static int hns3_set_l3l4_type_csum(struct sk_buff *skb, u8 ol4_proto, static void hns3_set_txbd_baseinfo(u16 *bdtp_fe_sc_vld_ra_ri, int frag_end) { /* Config bd buffer end */ - hnae3_set_field(*bdtp_fe_sc_vld_ra_ri, HNS3_TXD_BDTYPE_M, - HNS3_TXD_BDTYPE_S, 0); - hnae3_set_bit(*bdtp_fe_sc_vld_ra_ri, HNS3_TXD_FE_B, !!frag_end); - hnae3_set_bit(*bdtp_fe_sc_vld_ra_ri, HNS3_TXD_VLD_B, 1); - hnae3_set_field(*bdtp_fe_sc_vld_ra_ri, HNS3_TXD_SC_M, HNS3_TXD_SC_S, 0); + hns3_set_field(*bdtp_fe_sc_vld_ra_ri, HNS3_TXD_FE_B, !!frag_end); + hns3_set_field(*bdtp_fe_sc_vld_ra_ri, HNS3_TXD_VLD_B, 1); } static int hns3_fill_desc_vtags(struct sk_buff *skb, @@ -1001,10 +983,10 @@ static int hns3_fill_desc_vtags(struct sk_buff *skb, * and use inner_vtag in one tag case. */ if (skb->protocol == htons(ETH_P_8021Q)) { - hnae3_set_bit(*out_vlan_flag, HNS3_TXD_OVLAN_B, 1); + hns3_set_field(*out_vlan_flag, HNS3_TXD_OVLAN_B, 1); *out_vtag = vlan_tag; } else { - hnae3_set_bit(*inner_vlan_flag, HNS3_TXD_VLAN_B, 1); + hns3_set_field(*inner_vlan_flag, HNS3_TXD_VLAN_B, 1); *inner_vtag = vlan_tag; } } else if (skb->protocol == htons(ETH_P_8021Q)) { -- 2.7.4