提交 · 826aa4a05669a46e435f65db901186e42bb43d8d · openanolis / cloud-kernel

13 10月, 2009 9 次提交

gianfar: Split allocation and initialization steps out of startup_gfar() · 826aa4a0

由 Anton Vorontsov 提交于 10月 12, 2009

Two new functions implemented: gfar_alloc_skb_resources() and
gfar_init_mac(). We'll use gfar_init_mac() for restoring after
hibernation.

The patch just moves the code around, there should be no functional
changes.
Signed-off-by: NAnton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

826aa4a0

gianfar: Don't needlessly set the wrap bit for the last RX BD · 14231176

由 Anton Vorontsov 提交于 10月 12, 2009

startup_gfar() sets the wrap bit for the last rxbd just after
gfar_new_rxbdp() call, which is issued for all rxbds. And
gfar_new_rxbdp() has the following check already:

	if (bdp == priv->rx_bd_base + priv->rx_ring_size - 1)
		lstatus |= BD_LFLAG(RXBD_WRAP);

So we don't need to set the bit again.
Signed-off-by: NAnton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

14231176

gianfar: Simplify skb resources freeing code · e69edd21

由 Anton Vorontsov 提交于 10月 12, 2009

Remove dma_free_coherent() from stop_gfar() and gfar_start() calls,
place it into free_skb_resources(). That makes SKB resources management
more understandable, plus free_skb_resources() will be used as a cleanup
routine for gfar_alloc_skb_resources() that will be implemented soon.
Signed-off-by: NAnton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

e69edd21

gianfar: Some cleanups for startup_gfar() · ccc05c6e

由 Anton Vorontsov 提交于 10月 12, 2009

We're going to split the startup_gfar() into 3 separate functions,
so let's cleanup the code a little bit so that cosmetic changes
won't distract attention from logical ones.

- Remove needless casts (e.g. (struct sk_buff **)kmalloc());
- Turn 'unsigned long vaddr;' into 'void *vaddr', to avoid casting;
- Add new 'struct device *dev' variable as a shorthand for
  '&priv->ofdev->dev' that is used all over the place, also rename
  'struct net_device *dev' to 'struct net_device *ndev';
- Turn printk(KERN_ERR ...) to pr_err(...), which is shorter;
- Don't return bogus -1 (i.e. -EPERM) when request_irq() fails;
- Turn '&priv->regs->' to just '&regs->'.
Signed-off-by: NAnton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

ccc05c6e

net: Introduce recvmmsg socket syscall · a2e27255

由 Arnaldo Carvalho de Melo 提交于 10月 12, 2009

Meaning receive multiple messages, reducing the number of syscalls and
net stack entry/exit operations.

Next patches will introduce mechanisms where protocols that want to
optimize this operation will provide an unlocked_recvmsg operation.

This takes into account comments made by:

. Paul Moore: sock_recvmsg is called only for the first datagram,
  sock_recvmsg_nosec is used for the rest.

. Caitlin Bestler: recvmmsg now has a struct timespec timeout, that
  works in the same fashion as the ppoll one.

  If the underlying protocol returns a datagram with MSG_OOB set, this
  will make recvmmsg return right away with as many datagrams (+ the OOB
  one) it has received so far.

. Rémi Denis-Courmont & Steven Whitehouse: If we receive N < vlen
  datagrams and then recvmsg returns an error, recvmmsg will return
  the successfully received datagrams, store the error and return it
  in the next call.

This paves the way for a subsequent optimization, sk_prot->unlocked_recvmsg,
where we will be able to acquire the lock only at batch start and end, not at
every underlying recvmsg call.
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

a2e27255

cnic: Need to include net/ip6_checksum.h · c05e85a0

由 David S. Miller 提交于 10月 12, 2009

drivers/net/cnic.c: In function 'cnic_init_storm_conn_bufs':
drivers/net/cnic.c:1757: error: implicit declaration of function 'csum_ipv6_magic'
Reported-by: NStephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

c05e85a0

pasemi_mac: ethtool set settings support · 5402240c

由 Valentine Barshak 提交于 10月 12, 2009

Add ethtool set settings to pasemi_mac_ethtool.
Signed-off-by: NValentine Barshak <vbarshak@ru.mvista.com>
Acked-by: NOlof Johansson <olof@lixom.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

5402240c

be2net: Implement ethtool get_phys_id function. · fad9ab2c

由 Sarveshwar Bandi 提交于 10月 12, 2009

Signed-off-by: NSarveshwar Bandi <sarveshwarb@serverengines.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

fad9ab2c

net: Generalize socket rx gap / receive queue overflow cmsg · 3b885787

由 Neil Horman 提交于 10月 12, 2009

Create a new socket level option to report number of queue overflows

Recently I augmented the AF_PACKET protocol to report the number of frames lost
on the socket receive queue between any two enqueued frames. This value was
exported via a SOL_PACKET level cmsg. AFter I completed that work it was
requested that this feature be generalized so that any datagram oriented socket
could make use of this option. As such I've created this patch, It creates a
new SOL_SOCKET level option called SO_RXQ_OVFL, which when enabled exports a
SOL_SOCKET level cmsg that reports the nubmer of times the sk_receive_queue
overflowed between any two given frames. It also augments the AF_PACKET
protocol to take advantage of this new feature (as it previously did not touch
sk->sk_drops, which this patch uses to record the overflow count). Tested
successfully by me.

Notes:

1) Unlike my previous patch, this patch simply records the sk_drops value, which
is not a number of drops between packets, but rather a total number of drops.
Deltas must be computed in user space.

2) While this patch currently works with datagram oriented protocols, it will
also be accepted by non-datagram oriented protocols. I'm not sure if thats
agreeable to everyone, but my argument in favor of doing so is that, for those
protocols which aren't applicable to this option, sk_drops will always be zero,
and reporting no drops on a receive queue that isn't used for those
non-participating protocols seems reasonable to me. This also saves us having
to code in a per-protocol opt in mechanism.

3) This applies cleanly to net-next assuming that commit
97775007 (my af packet cmsg patch) is reverted
Signed-off-by: NNeil Horman <nhorman@tuxdriver.com>
Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

3b885787

12 10月, 2009 20 次提交

Revert "af_packet: add interframe drop cmsg (v6)" · d5e63bde

由 David S. Miller 提交于 10月 12, 2009

This reverts commit 97775007.

Neil is reimplementing this generically, outside of AF_PACKET.
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

d5e63bde

ipv6 sit: Set relay to 0.0.0.0 directly if relay_prefixlen == 0. · 91b2a3f9

由 YOSHIFUJI Hideaki / 吉藤英明提交于 10月 11, 2009

ipv6 sit: Set relay to 0.0.0.0 directly if relay_prefixlen == 0.

Do not use bit-shift if relay_prefixlen == 0;
relay_prefix << 32 does not result in 0.
Signed-off-by: NYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

91b2a3f9

ipv6 sit: Fix 6rd relay address. · e7db38c3

由 YOSHIFUJI Hideaki / 吉藤英明提交于 10月 11, 2009

ipv6 sit: Fix 6rd relay address.

Relay's address should be extracted from real IPv6 address
instead of configured prefix.
Signed-off-by: NYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

e7db38c3

ipv6 sit: Ensure to initialize 6rd parameters. · e0c93948

由 YOSHIFUJI Hideaki / 吉藤英明提交于 10月 11, 2009

ipv6 sit: Ensure to initialize 6rd parameters.
Signed-off-by: NYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

e0c93948

cnic: Add main functions to support bnx2x devices. · 71034ba8