From: Stephen Hemminger <shemminger@vyatta.com>
To: Joseph Gasparakis <joseph.gasparakis@intel.com>
Cc: davem@davemloft.net, chrisw@sous-sol.org, netdev@vger.kernel.org,
Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Subject: Re: [RFC PATCH 1/2] net: Add support for hardware-offloaded encapsulation
Date: Thu, 25 Oct 2012 14:16:56 -0700 [thread overview]
Message-ID: <20121025141656.5383dabe@nehalam.linuxnetplumber.net> (raw)
In-Reply-To: <1351189753-5912-2-git-send-email-joseph.gasparakis@intel.com>
On Thu, 25 Oct 2012 11:29:12 -0700
Joseph Gasparakis <joseph.gasparakis@intel.com> wrote:
> @@ -19,6 +19,7 @@ enum {
> NETIF_F_IP_CSUM_BIT, /* Can checksum TCP/UDP over IPv4. */
> __UNUSED_NETIF_F_1,
> NETIF_F_HW_CSUM_BIT, /* Can checksum all the packets. */
> + NETIF_F_HW_CSUM_ENC_BIT, /* Can checksum all inner headers */
> NETIF_F_IPV6_CSUM_BIT, /* Can checksum TCP/UDP over IPV6 */
> NETIF_F_HIGHDMA_BIT, /* Can DMA to high memory. */
> NETIF_F_FRAGLIST_BIT, /* Scatter/gather IO. */
> @@ -52,6 +53,8 @@ enum {
> NETIF_F_NTUPLE_BIT, /* N-tuple filters supported */
> NETIF_F_RXHASH_BIT, /* Receive hashing offload */
> NETIF_F_RXCSUM_BIT, /* Receive checksumming offload */
> + NETIF_F_RXCSUM_ENC_BIT, /* Receive checksuming offload */
> + /* for encapsulation */
> NETIF_F_NOCACHE_COPY_BIT, /* Use no-cache copyfromuser */
> NETIF_F_LOOPBACK_BIT, /* Enable loopback */
> NETIF_F_RXFCS_BIT, /* Append FCS to skb pkt data */
Add new features at the end, or reuse __UNUSED_ bits to avoid any
issues with binary compatibility. I don't think these bits are in any
userspace API, maybe ethtool?
next prev parent reply other threads:[~2012-10-25 21:17 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-25 18:29 (unknown), Joseph Gasparakis
2012-10-25 18:29 ` [RFC PATCH 1/2] net: Add support for hardware-offloaded encapsulation Joseph Gasparakis
2012-10-25 21:16 ` Stephen Hemminger [this message]
2012-10-25 22:20 ` Ben Hutchings
2012-10-26 19:54 ` Gasparakis, Joseph
2012-10-26 20:21 ` Stephen Hemminger
2012-10-25 18:29 ` [RFC PATCH 2/2] tunneling: capture inner headers during encapsulation Joseph Gasparakis
2012-10-25 18:38 ` (unknown) David Miller
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