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 Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by smtp.lore.kernel.org (Postfix) with ESMTP id DFA8EC61DB9 for ; Fri, 28 Aug 2026 03:24:45 +0000 (UTC) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 460E640B8D; Fri, 28 Aug 2026 05:24:45 +0200 (CEST) Received: from cstnet.cn (smtp81.cstnet.cn [159.226.251.81]) by mails.dpdk.org (Postfix) with ESMTP id 41BE340A7A for ; Fri, 28 Aug 2026 05:24:43 +0200 (CEST) Received: from localhost.localdomain (unknown [118.112.177.181]) by APP-03 (Coremail) with SMTP id rQCowAAHED55_5Bq9iJwBg--.8244S2; Fri, 28 Aug 2026 11:24:41 +0800 (CST) From: liujie5@linkdatatechnology.com To: stephen@networkplumber.org Cc: dev@dpdk.org Subject: [PATCH v5 16/45] net/sxe2: use regular write for mapped registers Date: Fri, 28 Aug 2026 11:24:40 +0800 Message-ID: <20260828032440.2106300-1-liujie5@linkdatatechnology.com> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260827024035.1432256-1-liujie5@linkdatatechnology.com> References: <20260827024035.1432256-1-liujie5@linkdatatechnology.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID: rQCowAAHED55_5Bq9iJwBg--.8244S2 X-Coremail-Antispam: 1UD129KBjvJXoW7Kr18WFWfXryruF4kWw1xZrb_yoW8AryfpF WYqryavF1YqFs8tws8JayxZF9IgF1DJr9Fka90934fZF1DJr1UCFs0qa4rtw4Fkr4xJF4F vrW3Ar1UWa95Ar7anT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUkFb7Iv0xC_Zr1lb4IE77IF4wAFF20E14v26r1j6r4UM7CY07I2 0VC2zVCF04k26cxKx2IYs7xG6rWj6s0DM7CIcVAFz4kK6r1j6r18M28lY4IEw2IIxxk0rw A2F7IY1VAKz4vEj48ve4kI8wA2z4x0Y4vE2Ix0cI8IcVAFwI0_Xr0_Ar1l84ACjcxK6xII jxv20xvEc7CjxVAFwI0_Gr0_Cr1l84ACjcxK6I8E87Iv67AKxVWxJVW8Jr1l84ACjcxK6I 8E87Iv6xkF7I0E14v26r4j6r4UJwAS0I0E0xvYzxvE52x082IY62kv0487Mc02F40EFcxC 0VAKzVAqx4xG6I80ewAv7VC0I7IYx2IY67AKxVWUtVWrXwAv7VC2z280aVAFwI0_Gr0_Cr 1lOx8S6xCaFVCjc4AY6r1j6r4UM4x0Y48IcxkI7VAKI48JM4kE6xkIj40Ew7xC0wCF04k2 0xvY0x0EwIxGrwCFx2IqxVCFs4IE7xkEbVWUJVW8JwC20s026c02F40E14v26r1j6r18MI 8I3I0E7480Y4vE14v26r106r1rMI8E67AF67kF1VAFwI0_Jrv_JF1lIxkGc2Ij64vIr41l IxAIcVC0I7IYx2IY67AKxVW8JVW5JwCI42IY6xIIjxv20xvEc7CjxVAFwI0_Gr0_Cr1lIx AIcVCF04k26cxKx2IYs7xG6r1j6r1xMIIF0xvEx4A2jsIE14v26r4j6F4UMIIF0xvEx4A2 jsIEc7CjxVAFwI0_Gr0_Gr1UYxBIdaVFxhVjvjDU0xZFpf9x07j49a9UUUUU= X-Originating-IP: [118.112.177.181] X-CM-SenderInfo: xolxyxrhv6zxpqngt3pdwhux5qro0w31of0z/ X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org From: Jie Liu sxe2_pci_map_write_reg() uses the write-combined store (SXE2_PCI_REG_WRITE_WC) to write control registers, which is intended for doorbell/tail writes and can be lossy or delayed for ordering sensitive register updates. Add SXE2_PCI_REG_WRITE macro using a regular rte_write32() and use it in sxe2_pci_map_write_reg(). Fixes: 8cebf80f1eda ("net/sxe2: support Rx interrupt") Cc: stable@dpdk.org Cc: stephen@networkplumber.org Signed-off-by: Jie Liu --- drivers/net/sxe2/sxe2_ethdev.c | 2 +- drivers/net/sxe2/sxe2_ethdev.h | 2 ++ 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/sxe2/sxe2_ethdev.c b/drivers/net/sxe2/sxe2_ethdev.c index 7a11a93dff..589f09c113 100644 --- a/drivers/net/sxe2/sxe2_ethdev.c +++ b/drivers/net/sxe2/sxe2_ethdev.c @@ -1439,7 +1439,7 @@ void sxe2_pci_map_write_reg(struct sxe2_adapter *adapter, goto l_ret; } - SXE2_PCI_REG_WRITE_WC(reg_addr, value); + SXE2_PCI_REG_WRITE(reg_addr, value); l_ret: return; } diff --git a/drivers/net/sxe2/sxe2_ethdev.h b/drivers/net/sxe2/sxe2_ethdev.h index 1409be74d3..cf1104144c 100644 --- a/drivers/net/sxe2/sxe2_ethdev.h +++ b/drivers/net/sxe2/sxe2_ethdev.h @@ -355,6 +355,8 @@ struct sxe2_adapter { #define SXE2_DEV_PRIVATE_TO_ADAPTER(dev) \ ((struct sxe2_adapter *)(dev)->data->dev_private) +#define SXE2_PCI_REG_WRITE(reg, value) rte_write32((rte_cpu_to_le_32(value)), (reg)) + void *sxe2_pci_map_addr_get(struct sxe2_adapter *adapter, enum sxe2_pci_map_resource res_type, uint16_t idx_in_func); -- 2.52.0