From: David Miller <davem@davemloft.net>
To: rafalo@cadence.com
Cc: nicolas.ferre@microchip.com, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org, piotrs@cadence.com,
ltyrala@cadence.com
Subject: Re: [PATCH 0/3] Receive Side Coalescing for macb driver
Date: Tue, 17 Apr 2018 09:53:32 -0400 (EDT) [thread overview]
Message-ID: <20180417.095332.47355231483878538.davem@davemloft.net> (raw)
In-Reply-To: <BN3PR0701MB1122B2FF2A1C54CD363B16A7C9B70@BN3PR0701MB1122.namprd07.prod.outlook.com>
From: Rafal Ozieblo <rafalo@cadence.com>
Date: Tue, 17 Apr 2018 08:59:35 +0000
> If IP supports RSC and skb has 2B reserved for alignment we end up
> with none packets receive correctly (2B missing in the each skb).
> We can either leave few customers without support in Linux driver or
> let them use the driver with decrease performance.
You probably want to find a way to memmove() the headers to be aligned
in this case, and then point the data afterwards into SKB page frags.
prev parent reply other threads:[~2018-04-17 13:53 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-14 20:53 Rafal Ozieblo
2018-04-14 20:53 ` [PATCH 1/3] net: macb: Add support for rsc capable hardware Rafal Ozieblo
2018-04-14 20:54 ` [PATCH 2/3] net: macb: Add support for header data spliting Rafal Ozieblo
2018-04-14 20:55 ` [PATCH 3/3] net: macb: Receive Side Coalescing (RSC) feature added Rafal Ozieblo
2018-04-16 15:08 ` [PATCH 0/3] Receive Side Coalescing for macb driver David Miller
2018-04-17 8:59 ` Rafal Ozieblo
2018-04-17 13:53 ` David Miller [this message]
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