From nobody Sun Feb 8 16:31:15 2026 Received: from mail-wr1-f50.google.com (mail-wr1-f50.google.com [209.85.221.50]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id AF4AD58109 for ; Mon, 25 Mar 2024 16:00:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.221.50 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711382453; cv=none; b=N9wWligz3zTpUPBA3+bohkcOs7PWnWl3XKEefpCNXjp9nNB7kWCWZXFgzud6woHYs6TEW1VHCvn77OLbz7b/+AoY5OARtsWAq/Q0m1Dn8CBsdXHA+L03BXhRNriZojOjSQz10NPJaYqGvVzIyd7wz4SDAhjCIATIdBoh545IvSs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711382453; c=relaxed/simple; bh=Y46qZiPIxVqm/+2ngjD2p6sQy4AqjAerfnqGZzoaKmI=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=NI/8asnhdKAqJ53zRbVyPNTXMN8lop6/2K8xFG5vl7ZnFeEWlr7cCo4jfOkuV3M6R/ERZw6Etzx0+TMoAJmiqblLQKlImVhAkcpQ6wjvMl7s+NAQRapqSj9Z5U6lqM97qjaNKHLnY6KV2mJhynNt5dG7XzLkOCKviLVG+kZRjNs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=baylibre.com; spf=pass smtp.mailfrom=baylibre.com; dkim=pass (2048-bit key) header.d=baylibre-com.20230601.gappssmtp.com header.i=@baylibre-com.20230601.gappssmtp.com header.b=0lVUmor7; arc=none smtp.client-ip=209.85.221.50 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=baylibre.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=baylibre.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=baylibre-com.20230601.gappssmtp.com header.i=@baylibre-com.20230601.gappssmtp.com header.b="0lVUmor7" Received: by mail-wr1-f50.google.com with SMTP id ffacd0b85a97d-33e285a33bdso2485112f8f.2 for ; Mon, 25 Mar 2024 09:00:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20230601.gappssmtp.com; s=20230601; t=1711382450; x=1711987250; darn=vger.kernel.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=canlvOloh4zEnLanokN/WjQ62JpW1VdMiHVT6vaC3r4=; b=0lVUmor7lpoyjkBZ2yBChYcLpUBKOKjAz0ZwDZIoq1qNjoyyHpnSIrHPlx/1dkFb/z JyEitDXut0wTjHcEIOM/3dCUe9mTfpGKjcEp1bN/U8AoiHrcolwZmR7Pez/Vi+bhnIJh i49KqCf3fOprK16qBkG5ZatcNPBtXsWGgqYnkI8RBHju5HPWYnuWyxBTFCOHOh2ZVLQl 0M8Q6vjiHFBVqKa/aVRZYntjCgsfEIKoffj3eGqQLlG7y0u7hX6Sk8EY2qQj8lORnCfn 4999uYlXvywC0d9zRrcWl3vo/E4+2Lccee09UEU+/OSJ8hqbwZbE64CNgEDWlT4Xc0lK Krjw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1711382450; x=1711987250; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=canlvOloh4zEnLanokN/WjQ62JpW1VdMiHVT6vaC3r4=; b=FgZVK0iWgtNmYYfBry0hRyAwzoaVK68f2rgapAzNW228+n8HtmGYjFvde/TISLZsFL TVmUwrZoy3k+dl3QDV/jTkiOh6M8dUuWZQ/GFWHJpGyS/b7ZJhKa01Vd0BqNvi9pp2oQ +4d9Brnso2AmHsST83D0JXddU3cuPhovTosHALckfHGMkHSI0K2PASBEPrBeNcz3wobr 4BjVBkO3MS4Wzf0SEkuYQHexy8qNZkH88qpEjOzu3Kr+/SA2nKH77MNzMOa+Bl5LbsjM mKA6kNAjtLoM0ffq7ki1kJa8zf5nIGSiFJP84O8gPFQK90HVcy01wI04WjIVnA+23BtJ /Zcw== X-Forwarded-Encrypted: i=1; AJvYcCXRObQfxPBSTYFEQktg2xrFOUpkhsYa+bKBOyhMYGdWfaAuPVqgePafBarqZ69Lbn9sB8auxu8K+HcZgks0PG04mDBVguO+iWbFnXWn X-Gm-Message-State: AOJu0YyyNIv3buvSIi9yYudYAOy4eOHEaDnYq36m3PcaEarBAtOpOlAu 7s0IZR4xoOmwVRfY1abgtBO5FQQNHJQ0Z77wtLEimuWiPGaTdK//0k8VxmElFfk= X-Google-Smtp-Source: AGHT+IHSytMnpxNaEiziU/ORo0KmKW28ariRT1MML39MUcPWdgIVh1QjgdSOCBzmnu72Uz2Ka5H2rA== X-Received: by 2002:a5d:4805:0:b0:33e:7650:24c8 with SMTP id l5-20020a5d4805000000b0033e765024c8mr4591997wrq.12.1711382450053; Mon, 25 Mar 2024 09:00:50 -0700 (PDT) Received: from [127.0.1.1] (laubervilliers-658-1-213-31.w90-63.abo.wanadoo.fr. [90.63.244.31]) by smtp.gmail.com with ESMTPSA id r17-20020adff711000000b0033b6e26f0f9sm9839361wrp.42.2024.03.25.09.00.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 25 Mar 2024 09:00:49 -0700 (PDT) From: Julien Panis Date: Mon, 25 Mar 2024 17:00:36 +0100 Subject: [PATCH net-next v4 2/3] net: ethernet: ti: Add desc_infos member to struct k3_cppi_desc_pool Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240223-am65-cpsw-xdp-basic-v4-2-2e45e5dec048@baylibre.com> References: <20240223-am65-cpsw-xdp-basic-v4-0-2e45e5dec048@baylibre.com> In-Reply-To: <20240223-am65-cpsw-xdp-basic-v4-0-2e45e5dec048@baylibre.com> To: "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Russell King , Alexei Starovoitov , Daniel Borkmann , Jesper Dangaard Brouer , John Fastabend , Sumit Semwal , =?utf-8?q?Christian_K=C3=B6nig?= , Simon Horman , Andrew Lunn Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, bpf@vger.kernel.org, linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org, Julien Panis X-Mailer: b4 0.12.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1711382445; l=3220; i=jpanis@baylibre.com; s=20230526; h=from:subject:message-id; bh=Y46qZiPIxVqm/+2ngjD2p6sQy4AqjAerfnqGZzoaKmI=; b=qgazWBkM+DqOQxUttA89E8Lub9bkZLXTiY4gGfQc3DvbXI8gj4y8pwiS7olUpwYThyrJuXab2 kv8gwXF15yTDDMhye3q/9gIuwf+Zc95Nt7V5oTSnSiqrGzXU1KyR1xv X-Developer-Key: i=jpanis@baylibre.com; a=ed25519; pk=8eSM4/xkiHWz2M1Cw1U3m2/YfPbsUdEJPCWY3Mh9ekQ= This patch introduces a member and the related accessors which can be used to store descriptor specific additional information. This member can store, for instance, an ID to differentiate a skb TX buffer type from a xdpf TX buffer type. Signed-off-by: Julien Panis --- drivers/net/ethernet/ti/k3-cppi-desc-pool.c | 24 ++++++++++++++++++++++++ drivers/net/ethernet/ti/k3-cppi-desc-pool.h | 2 ++ 2 files changed, 26 insertions(+) diff --git a/drivers/net/ethernet/ti/k3-cppi-desc-pool.c b/drivers/net/ethe= rnet/ti/k3-cppi-desc-pool.c index fe8203c05731..d0c68d722ef2 100644 --- a/drivers/net/ethernet/ti/k3-cppi-desc-pool.c +++ b/drivers/net/ethernet/ti/k3-cppi-desc-pool.c @@ -22,6 +22,7 @@ struct k3_cppi_desc_pool { size_t mem_size; size_t num_desc; struct gen_pool *gen_pool; + void **desc_infos; }; =20 void k3_cppi_desc_pool_destroy(struct k3_cppi_desc_pool *pool) @@ -72,6 +73,15 @@ k3_cppi_desc_pool_create_name(struct device *dev, size_t= size, goto gen_pool_create_fail; } =20 + pool->desc_infos =3D devm_kcalloc(dev, pool->num_desc, + sizeof(*pool->desc_infos), GFP_KERNEL); + if (!pool->desc_infos) { + ret =3D -ENOMEM; + dev_err(pool->dev, "pool descriptor infos alloc failed %d\n", ret); + kfree_const(pool_name); + goto gen_pool_desc_infos_alloc_fail; + } + pool->gen_pool->name =3D pool_name; =20 pool->cpumem =3D dma_alloc_coherent(pool->dev, pool->mem_size, @@ -94,6 +104,8 @@ k3_cppi_desc_pool_create_name(struct device *dev, size_t= size, dma_free_coherent(pool->dev, pool->mem_size, pool->cpumem, pool->dma_addr); dma_alloc_fail: + devm_kfree(pool->dev, pool->desc_infos); +gen_pool_desc_infos_alloc_fail: gen_pool_destroy(pool->gen_pool); /* frees pool->name */ gen_pool_create_fail: devm_kfree(pool->dev, pool); @@ -144,5 +156,17 @@ void *k3_cppi_desc_pool_cpuaddr(struct k3_cppi_desc_po= ol *pool) } EXPORT_SYMBOL_GPL(k3_cppi_desc_pool_cpuaddr); =20 +void k3_cppi_desc_pool_desc_info_set(struct k3_cppi_desc_pool *pool, int d= esc_idx, void *info) +{ + pool->desc_infos[desc_idx] =3D info; +} +EXPORT_SYMBOL_GPL(k3_cppi_desc_pool_desc_info_set); + +void *k3_cppi_desc_pool_desc_info(struct k3_cppi_desc_pool *pool, int desc= _idx) +{ + return pool->desc_infos[desc_idx]; +} +EXPORT_SYMBOL_GPL(k3_cppi_desc_pool_desc_info); + MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("TI K3 CPPI5 descriptors pool API"); diff --git a/drivers/net/ethernet/ti/k3-cppi-desc-pool.h b/drivers/net/ethe= rnet/ti/k3-cppi-desc-pool.h index 149d5579a5e2..0076596307e7 100644 --- a/drivers/net/ethernet/ti/k3-cppi-desc-pool.h +++ b/drivers/net/ethernet/ti/k3-cppi-desc-pool.h @@ -28,5 +28,7 @@ void k3_cppi_desc_pool_free(struct k3_cppi_desc_pool *poo= l, void *addr); size_t k3_cppi_desc_pool_avail(struct k3_cppi_desc_pool *pool); size_t k3_cppi_desc_pool_desc_size(struct k3_cppi_desc_pool *pool); void *k3_cppi_desc_pool_cpuaddr(struct k3_cppi_desc_pool *pool); +void k3_cppi_desc_pool_desc_info_set(struct k3_cppi_desc_pool *pool, int d= esc_idx, void *info); +void *k3_cppi_desc_pool_desc_info(struct k3_cppi_desc_pool *pool, int desc= _idx); =20 #endif /* K3_CPPI_DESC_POOL_H_ */ --=20 2.37.3