From: brouer@redhat•com (Jesper Dangaard Brouer)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH v6 net-next 08/10] net: mvneta: bm: add support for hardware buffer management
Date: Mon, 14 Mar 2016 10:57:14 +0100 [thread overview]
Message-ID: <20160314105714.1e97b4c1@redhat.com> (raw)
In-Reply-To: <1457944745-7634-9-git-send-email-gregory.clement@free-electrons.com>
On Mon, 14 Mar 2016 09:39:03 +0100 Gregory CLEMENT <gregory.clement@free-electrons•com> wrote:
> diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c
> index b0ae69f84493..2847c0c291de 100644
> --- a/drivers/net/ethernet/marvell/mvneta.c
> +++ b/drivers/net/ethernet/marvell/mvneta.c
[...]
> -static void *mvneta_frag_alloc(const struct mvneta_port *pp)
> +void *mvneta_frag_alloc(unsigned int frag_size)
> {
> - if (likely(pp->frag_size <= PAGE_SIZE))
> - return netdev_alloc_frag(pp->frag_size);
> + if (likely(frag_size <= PAGE_SIZE))
> + return netdev_alloc_frag(frag_size);
(I know you are modifying existing code here.)
Be aware that there is a significant performance advantage of using
napi_alloc_frag() over netdev_alloc_frag(). You obviously can only use
the NAPI call, if you indeed are running in NAPI/BH context.
> else
> - return kmalloc(pp->frag_size, GFP_ATOMIC);
> + return kmalloc(frag_size, GFP_ATOMIC);
> }
> +EXPORT_SYMBOL_GPL(mvneta_frag_alloc);
--
Best regards,
Jesper Dangaard Brouer
MSc.CS, Principal Kernel Engineer at Red Hat
Author of http://www.iptv-analyzer.org
LinkedIn: http://www.linkedin.com/in/brouer
next prev parent reply other threads:[~2016-03-14 9:57 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-14 8:38 [PATCH v6 net-next 00/10] API set for HW Buffer management Gregory CLEMENT
2016-03-14 8:38 ` [PATCH v6 net-next 01/10] misc: sram: add optional ioremap without write combining Gregory CLEMENT
2016-03-14 8:44 ` Gregory CLEMENT
2016-03-14 8:38 ` [PATCH v6 net-next 02/10] ARM: dts: armada-38x: add buffer manager nodes Gregory CLEMENT
2016-03-14 8:38 ` [PATCH v6 net-next 03/10] ARM: dts: armada-38x: enable buffer manager support on Armada 38x boards Gregory CLEMENT
2016-03-14 8:38 ` [PATCH v6 net-next 04/10] ARM: dts: armada-xp: add buffer manager nodes Gregory CLEMENT
2016-03-14 8:39 ` [PATCH v6 net-next 05/10] ARM: dts: armada-xp: enable buffer manager support on Armada XP boards Gregory CLEMENT
2016-03-14 8:39 ` [PATCH v6 net-next 06/10] ARM: dts: armada-xp-openblocks-ax3-4: Add BM support Gregory CLEMENT
2016-03-14 8:39 ` [PATCH v6 net-next 07/10] bus: mvebu-mbus: provide api for obtaining IO and DRAM window information Gregory CLEMENT
2016-03-14 8:39 ` [PATCH v6 net-next 08/10] net: mvneta: bm: add support for hardware buffer management Gregory CLEMENT
2016-03-14 9:57 ` Jesper Dangaard Brouer [this message]
2016-03-14 8:39 ` [PATCH v6 net-next 09/10] net: add a hardware buffer management helper API Gregory CLEMENT
2016-03-14 10:33 ` Jesper Dangaard Brouer
2016-03-14 8:39 ` [PATCH v6 net-next 10/10] net: mvneta: Use the new hwbm framework Gregory CLEMENT
2016-03-14 16:21 ` [PATCH v6 net-next 00/10] API set for HW Buffer management David Miller
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