Commit graph

8 commits

Author SHA1 Message Date
Herbert Xu
7967168cef [NET]: Merge TSO/UFO fields in sk_buff
Having separate fields in sk_buff for TSO/UFO (tso_size/ufo_size) is not
going to scale if we add any more segmentation methods (e.g., DCCP).  So
let's merge them.

They were used to tell the protocol of a packet.  This function has been
subsumed by the new gso_type field.  This is essentially a set of netdev
feature bits (shifted by 16 bits) that are required to process a specific
skb.  As such it's easy to tell whether a given device can process a GSO
skb: you just have to and the gso_type field and the netdev's features
field.

I've made gso_type a conjunction.  The idea is that you have a base type
(e.g., SKB_GSO_TCPV4) that can be modified further to support new features.
For example, if we add a hardware TSO type that supports ECN, they would
declare NETIF_F_TSO | NETIF_F_TSO_ECN.  All TSO packets with CWR set would
have a gso_type of SKB_GSO_TCPV4 | SKB_GSO_TCPV4_ECN while all other TSO
packets would be SKB_GSO_TCPV4.  This means that only the CWR packets need
to be emulated in software.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-23 02:07:29 -07:00
Herbert Xu
5b057c6b1a [NET]: Avoid allocating skb in skb_pad
First of all it is unnecessary to allocate a new skb in skb_pad since
the existing one is not shared.  More importantly, our hard_start_xmit
interface does not allow a new skb to be allocated since that breaks
requeueing.

This patch uses pskb_expand_head to expand the existing skb and linearize
it if needed.  Actually, someone should sift through every instance of
skb_pad on a non-linear skb as they do not fit the reasons why this was
originally created.

Incidentally, this fixes a minor bug when the skb is cloned (tcpdump,
TCP, etc.).  As it is skb_pad will simply write over a cloned skb.  Because
of the position of the write it is unlikely to cause problems but still
it's best if we don't do it.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-23 02:06:41 -07:00
Brice Goglin
bfcbb00855 [PATCH] myri10ge - drop workaround pci_save_state() disabling MSI
We don't need to restore the state right after saving it for later recovery
since commit 99dc804d9b (PCI: disable msi mode
in pci_disable_device) now prevents pci_save_state() from disabling MSI.

Signed-off-by: Brice Goglin <brice@myri.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-06-22 23:35:19 -04:00
Brice Goglin
69eb887b0c [PATCH] myri10ge - drop workaround for the missing AER ext cap on nVidia CK804
We don't need to hardcode the AER capability of the nVidia CK804 chipset
anymore since commit cf34a8e07f (PCI: nVidia
quirk to make AER PCI-E extended capability visible) now makes sure that
this cap will be available to pci_find_ext_capability().

Signed-off-by: Brice Goglin <brice@myri.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-06-22 23:35:19 -04:00
Andrew Morton
bec0e85910 [PATCH] myri10ge build fix
Someone changed skb_linearize().

Cc: Brice Goglin <bgoglin@myri.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-22 15:05:56 -07:00
Brice Goglin
b10c066823 [PATCH] myri10ge update
The following patch updates the myri10ge to 1.0.0, with the following changes:
* Switch to dma_alloc_coherent API.
* Avoid PCI burst when writing the firmware on chipset with unaligned completions.
* Use ethtool_op_set_tx_hw_csum instead of ethtool_op_set_tx_csum.
* Include linux/dma-mapping.h to bring DMA_32/64BIT_MASK on all architectures
  (was missing at least on alpha).
* Some typo and warning fixes.

Signed-off-by: Brice Goglin <brice@myri.com>
Signed-off-by: Andrew J. Gallatin <gallatin@myri.com>

 drivers/net/myri10ge/myri10ge.c |   57 +++++++++++++++++++-----------
 1 file changed, 37 insertions(+), 20 deletions(-)
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-06-08 15:25:22 -04:00
Jeff Garzik
6ed14254cb [netdrvr pcnet_cs, myri] trim trailing whitespace 2006-05-24 00:28:37 -04:00
Brice Goglin
0da34b6dfe [PATCH] Add Myri-10G Ethernet driver
Signed-off-by: Brice Goglin <brice@myri.com>
Signed-off-by: Andrew J. Gallatin <gallatin@myri.com>

 drivers/net/Kconfig                            |   17
 drivers/net/Makefile                           |    1
 drivers/net/myri10ge/Makefile                  |    5
 drivers/net/myri10ge/myri10ge.c                | 2851 +++++++++++++++
 drivers/net/myri10ge/myri10ge_mcp.h            |  205 +
 drivers/net/myri10ge/myri10ge_mcp_gen_header.h |   58
 include/linux/pci_ids.h                        |    1
 7 files changed, 3138 insertions(+)
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-05-24 00:27:31 -04:00