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 A3F79C43458 for ; Wed, 1 Jul 2026 18:36:15 +0000 (UTC) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 8C84140B8C; Wed, 1 Jul 2026 20:35:46 +0200 (CEST) Received: from mail-pj1-f73.google.com (mail-pj1-f73.google.com [209.85.216.73]) by mails.dpdk.org (Postfix) with ESMTP id 785CF40A82 for ; Wed, 1 Jul 2026 20:35:45 +0200 (CEST) Received: by mail-pj1-f73.google.com with SMTP id 98e67ed59e1d1-380cf335604so331826a91.1 for ; Wed, 01 Jul 2026 11:35:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1782930944; x=1783535744; darn=dpdk.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=Uk1XlcuHNdnM2pHLeImIt849f0PFTPH+gP8PyJO/xYg=; b=E8vlb4q/VNLS6i2iB9Rext5NQH0/n3ihTTUWubVc2yK9o2pKKGugUFkLiQR+ukW06h miZPpTxEdYJFQzIq1sgfGeKa7SKPOFYlVKO414JfBORilqEZxajCgF4T0YnlnWh18nbk nzwvJxfhyRRAfydFhniRgE+AGOVVGtZm3uS2ikmIjUGb5VKcOOjZVekoo4KUs1g0A58+ TVFvk0rHQCjq5FVKYdLAoUsWoOhnMyHfYHkfueqIeoipExo2yIh8Xk14mexjLf534kIv fKPRVzTlb0OLy7Zi6uG/O5h9FIqPEoA55FqhfSXs4SJQ3zlZ1MIfu0VKZDn3/4QiV0N7 gpTQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1782930944; x=1783535744; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=Uk1XlcuHNdnM2pHLeImIt849f0PFTPH+gP8PyJO/xYg=; b=SxUCcKcZ6H9eXllLH2Rpl/o7Uso+8mVYLhR5bGOwi7C4sdzULoFPD6CBVHryELBzcH +bZXqfG+hHu2k48q2xrzVTO2r3GQ0fqXCkbPvqVbY004dpBvIs2IAbJpqD2V+l0613Ha 1f3OU99fJDWUKvFVU7ONnmjzcARQxjBacnwDV1J7So/1Gp8a9+6wdWC2+AoEcBIBxd9b KBa04fEX41nAfUT+leI/jYCjxXGOiJQGmG2EW4/kCrXS5o6cSAesAPkVA2ZFw05xcAv1 agmqzTFZPmsLQDc7tjC6vJCIslXyUswc4JrHkpxBFLrLaKoF8fK+JGSsZytIYVjDAGZA J3dg== X-Gm-Message-State: AOJu0YztQWqfRk1lgHlWIQHgXEPcd4UjeAD8lKJUZhRkefJirzLlDwdI kdLVetLoNVuKD8u7n8i4bWvU2RjkgmWYxlk+cWNcMH9R26T/n79XtjCMaBgYUrjsGuBdx95p90g EJdtoDZzkDRP6qg== X-Received: from pjys10.prod.google.com ([2002:a17:90a:e68a:b0:377:2d20:59ff]) (user=joshwash job=prod-delivery.src-stubby-dispatcher) by 2002:a17:90b:4d05:b0:37f:c2a8:ce45 with SMTP id 98e67ed59e1d1-380ba84ba5bmr1905924a91.4.1782930944292; Wed, 01 Jul 2026 11:35:44 -0700 (PDT) Date: Wed, 1 Jul 2026 11:35:25 -0700 In-Reply-To: <20260701183528.2443032-1-joshwash@google.com> Mime-Version: 1.0 References: <20260701183528.2443032-1-joshwash@google.com> X-Mailer: git-send-email 2.55.0.rc0.799.gd6f94ed593-goog Message-ID: <20260701183528.2443032-8-joshwash@google.com> Subject: [PATCH 7/9] net/gve: increase range of DMA memzone ids to 64 bits From: Joshua Washington To: Jeroen de Borst , Joshua Washington , Haiyue Wang , Junfeng Guo , Xiaoyun Li Cc: dev@dpdk.org, stable@dpdk.org, "Jasper Tran O'Leary" Content-Type: text/plain; charset="UTF-8" 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 Long running programs can very easily eclipse this 16-bit range, leading to name collisions and failed DMA region allocations despite there being plenty of available memory. Fixes: c9ba2caf6302 ("net/gve/base: add OS-specific implementation") Cc: stable@dpdk.org Signed-off-by: Joshua Washington Reviewed-by: Jasper Tran O'Leary --- drivers/net/gve/base/gve_osdep.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/gve/base/gve_osdep.h b/drivers/net/gve/base/gve_osdep.h index c47ce4da85..55629a0e1a 100644 --- a/drivers/net/gve/base/gve_osdep.h +++ b/drivers/net/gve/base/gve_osdep.h @@ -175,14 +175,14 @@ struct gve_dma_mem { static inline void * gve_alloc_dma_mem(struct gve_dma_mem *mem, u64 size) { - static RTE_ATOMIC(uint16_t) gve_dma_memzone_id; + static RTE_ATOMIC(uint64_t) gve_dma_memzone_id; const struct rte_memzone *mz = NULL; char z_name[RTE_MEMZONE_NAMESIZE]; if (!mem) return NULL; - snprintf(z_name, sizeof(z_name), "gve_dma_%u", + snprintf(z_name, sizeof(z_name), "gve_dma_%" PRIu64, rte_atomic_fetch_add_explicit(&gve_dma_memzone_id, 1, rte_memory_order_relaxed)); mz = rte_memzone_reserve_aligned(z_name, size, SOCKET_ID_ANY, RTE_MEMZONE_IOVA_CONTIG, -- 2.55.0.rc0.799.gd6f94ed593-goog