Commit graph

44 commits

Author SHA1 Message Date
Eric Dumazet
451f144398 drivers: Kill now superfluous ->last_rx stores
The generic packet receive code takes care of setting
netdev->last_rx when necessary, for the sake of the
bonding ARP monitor.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Neil Horman <nhorman@txudriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-02 23:07:36 -07:00
Stephen Hemminger
0fc0b732ea netdev: drivers should make ethtool_ops const
No need to put ethtool_ops in data, they should be const.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-02 01:03:33 -07:00
Stephen Hemminger
61357325f3 netdev: convert bulk of drivers to netdev_tx_t
In a couple of cases collapse some extra code like:
   int retval = NETDEV_TX_OK;
   ...
   return retval;
into
   return NETDEV_TX_OK;

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-01 01:14:07 -07:00
Sathya Perla
1a8887d81a be2net: destroy mcc queue before tx queues
As mcc queue uses the tx event queue.

Signed-off-by: Sathya Perla <sathyap@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-17 17:48:29 -07:00
Sathya Perla
b628bde2b5 be2net: refactor be_msix_(un)register() code.
Signed-off-by: Sathya Perla <sathyap@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-17 17:48:28 -07:00
Sathya Perla
a65027e4d8 be2net: Set mac addr in hw regardless of netif_running()
be_mac_addr_set() currently is broken when netif_running() is false.

Signed-off-by: Sathya Perla <sathyap@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-17 17:48:27 -07:00
Sarveshwar Bandi
9b0365f195 be2net:Creating/destroying queues regardless of netif_running() in suspend/resume path
Signed-off-by: sarveshwarb <sarveshwarb@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-13 16:26:09 -07:00
Sathya Perla
859b1e4ec8 be2net: clear & notify residual events before destroying event queues
Any events rcvd after interrupts are disabled (in the driver unload path),
must be cleared and notified before the event queues are destroyed

Signed-off-by: Sathya Perla <sathyap@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-12 22:13:17 -07:00
Sathya Perla
cdab23b701 be2net: fix bad queue traversal in be_rx_q_clean()
Using "for(tail != head)" to traverse a queue from tail to head
fails in the case of a fully filled queue. Use "for(used != 0)" instead.

Signed-off-by: Sathya Perla <sathyap@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-12 22:13:17 -07:00
Sathya Perla
a8e9179a7d be2net: Clear pending tx completions before destroying tx queue
Clear pending tx completions in be_close() (ndo.stop method) so that after
unregister_netdev() calls be_close(), all tx skbs are freed and there are
no more tx completions when txq is destroyed.

Signed-off-by: Sathya Perla <sathyap@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-12 22:13:16 -07:00
sarveshwarb
14074eab8d be2net: Patch to perform function reset at initialization
This patch is a bug fix to avoid system going into a bad state when
driver is loaded in context of kdump kernel. The patch fixes the issue
by performing a soft reset of pci function at probe time.

Signed-off-by: sarveshwarb <sarveshwarb@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-05 13:05:24 -07:00
Sathya Perla
d9509ac129 be2net: delete unnecessary code from be_cmd_POST()
When the driver loads the POST stage of the card is expected to be
POST_STAGE_ARMFW_RDY.

Signed-off-by: Sathya Perla <sathyap@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-01 23:06:37 -07:00
Sathya Perla
efd2e40a8c be2net: some name changes for consistency
be_mbox_db_ring() has been changed to be_mbox_notify() (to be consistent with
be_mcc_notify()) and struct be_mcc_cq_entry changed to be_mcc_compl
to be consistent with rx/tx_compl.

Signed-off-by: Sathya Perla <sathyap@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-01 23:06:34 -07:00
Sathya Perla
5f0b849eb3 be2net: replace some printks with dev_err()/dev_warn()
And get rid of some unnecessary printks.

Signed-off-by: Sathya Perla <sathyap@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-01 23:06:31 -07:00
Sathya Perla
eec368fb3c be2net: remove pci_func field from be_adapter struct
pci function is available as PCI_FUNC(pdev->devfn); no need for a
separate field.

Signed-off-by: Sathya Perla <sathyap@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-01 23:06:26 -07:00
Sathya Perla
8788fdc2a5 be2net: get rid of be_ctrl_info struct/abstraction
Currently only the be_ctrl_info struct ptr (instead of adapter) is
 passed to all the routines in be_cmds.c. Instead pass be_adapter
ptr to allow access to all its fields. Merge the contents of struct be_ctrl_info
into be_adapter. The resulting code is simpler.

Signed-off-by: Sathya Perla <sathyap@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-01 23:06:20 -07:00
David S. Miller
74d154189d Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
	drivers/net/wireless/iwmc3200wifi/netdev.c
	net/wireless/scan.c
2009-07-23 19:03:51 -07:00
Ajit Khaparde
5be93b9a86 be2net: Add GRO support to the be2net driver. LRO is not supported anymore.
This patch removes support for INET_LRO and switches over to GRO.

Signed-off-by: Ajit Khaparde <ajitk@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-23 18:00:59 -07:00
Ajit Khaparde
fa77406aee be2net: Bug fix in the non-lro path. Size of received packet was not updated in statistics properly.
This patch fixes a bug in the non-lro path.  Wrong size of received
packet was being passed for updating receive statistics.  This patch
is against the net-2.6 git.

Signed-off-by: Ajit Khaparde <ajitk@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-22 09:28:55 -07:00
Sathya Perla
c001c213b1 be2net: fix spurious interrupt handling in intx mode
Occasionally we may see an interrupt without an event in the eq.
In intx, we currently see the event queue and return IRQ_NONE causing
a the irq to be disabled ("no one cared".) Instead, read the CEV_ISR
reg to check the existence of the interrupt.

Signed-off-by: Sathya Perla <sathyap@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-03 20:09:45 -07:00
Ajit Khaparde
bd46cb6cf1 be2net: Fix to avoid a crash seen on PPC with LRO and Jumbo frames.
While testing the driver on PPC, we ran into a crash with LRO, Jumbo frames.
With CONFIG_PPC_64K_PAGES configured (a default in PPC), MAX_SKB_FRAGS drops to 3 and we were crossing the array limits on skb_shinfo(skb)->frags[].
Now we coalesce the frags from the same physical page into one slot in
skb_shinfo(skb)->frags[] and go to the next index when the frag is from

different physical page.

This patch is against the net-2.6 tree.

Signed-off-by: Ajit Khaparde <ajitk@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-28 17:34:25 -07:00
Sathya Perla
a8f447bda3 be2net: receive asynchronous link status notifications from BE
Rcv and process ansync link status notifications from BE instead of polling
 for link status in the be_worker thread.

Signed-off-by: Sathya Perla <sathyap@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-19 00:18:42 -07:00
Sathya Perla
24307eef74 be2net: cleanup multicast_set cmd to avoid mc_list copy
Cleanup multicast_set method to avoid an extra copy of mc_list
 and unwanted promiscuos sets to BE.

Signed-off-by: Sathya Perla <sathyap@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-19 00:18:41 -07:00
Sathya Perla
6ac7b687cb be2net: Use MCC queue for cmds that may be called in BH context
Currenlty multicast_set and promiscuous_config cmds -- that may be called in BH context --
use the blocking MCC mbox to post cmds.
An mbox cmd is protected via a spin_lock(cmd_lock) and not spin_lock_bh() as it is undesirable
to disable BHs while a blocking mbox cmd is in progress (and take long to finish.)
This can lockup a cmd in progress in process context.
So, these two cmds in BH context must use the MCC queue to post cmds.

Signed-off-by: Sathya Perla <sathyap@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-19 00:18:40 -07:00
Sathya Perla
5fb379ee67 be2net: Add MCC queue mechanism for BE cmds
Currenlty all cmds use the blocking MCC mbox to post cmds. An mbox cmd is protected
via a spin_lock(cmd_lock) and not spin_lock_bh() as it is undesirable
to disable BHs while a blocking mbox cmd is in progress (and take long to finish.)
This can lockup a cmd in progress in process context. Instead cmds that may be
called in BH context must use the MCC queue to post cmds. The cmd completions
are rcvd in a separate completion queue and the events are placed in the tx-event
queue.

Signed-off-by: Sathya Perla <sathyap@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-19 00:18:39 -07:00
Sathya Perla
934037bc2e be2net: Fix be_tx_q_clean() being called on freed queues
In the tx queue destroy path, be_tx_q_clean() is currently called after the tx queues are freed; it must be called before.

Signed-off-by: Sathya Perla <sathyap@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-11 02:47:19 -07:00
Sathya Perla
a7a0ef31de be2net: Fix early reset of rx-completion
be_rx_compl_get() must not reset(via the valid word) the rx_compl as the rx_compl is not processed yet; it must be reset after it is processed.

Signed-off-by: Sathya Perla <sathyap@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-11 02:47:18 -07:00
Sathya Perla
76fbb42919 be2net: Fix rx stats updation in non-lro path
rx stats are not getting updated when an rx_compl with only one frag is rcvd in non-lro path.

Signed-off-by: Sathya Perla <sathyap@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-11 02:47:16 -07:00
Sathya Perla
6811086899 be2net: fix netdev stats rx_errors and rx_dropped
Fix netdev stat rx_errors to cover length related errors and checksum errors and rx_dropped to the pkts dropped due to lack of buffers

Signed-off-by: Sathya Perla <sathyap@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-11 02:47:16 -07:00
Sathya Perla
b305be78a0 be2net: Use cancel_delayed_work_sync instead of cancel_delayed_work()
Use cancel_delayed_work_sycn instead of cancel_delayed_work() to reliably kill be_worker() as it rearms itself.

Signed-off-by: Sathya Perla <sathyap@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-11 02:47:15 -07:00
David S. Miller
ebc8d2ab61 be2net: Remove unnecessary frag list traversing.
This driver does not indicate support for frag lists.

Furthermore, even if it did, the code is walking the frag
lists incorrectly.  The idiom is:

	for (iter = skb_shinfo(skb)->frag_list; iter; iter = iter->next)

but it's doing:

	for (iter = skb_shinfo(skb)->frag_list; iter;
	     iter = skb_shinfo(iter)->frag_list)

which would never work.  And this proves that this driver never
saw an SKB with active frag lists.

So just remove the code altogether and the driver TX path becomes
much simpler.

Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-09 01:01:31 -07:00
Eric Dumazet
28679751a9 net: dont update dev->trans_start in 10GB drivers
Followup of commits 9d21493b4b
and 08baf56108
(net: tx scalability works : trans_start)
(net: txq_trans_update() helper)

Now that core network takes care of trans_start updates, dont do it
in drivers themselves, if possible. Multi queue drivers can
avoid one cache miss (on dev->trans_start) in their start_xmit()
handler.

Exceptions are NETIF_F_LLTX drivers (vxge & tehuti)

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-29 01:46:26 -07:00
David S. Miller
bb803cfbec Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
	drivers/scsi/fcoe/fcoe.c
2009-05-18 21:08:20 -07:00
Ajit Khaparde
c4ca237431 be2net: add two new pci device ids to pci device table
Signed-off-by: Ajit Khaparde <ajitk@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-18 15:38:55 -07:00
David S. Miller
a54bfa40fd Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2009-04-16 17:35:26 -07:00
Linus Torvalds
cd97824994 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (64 commits)
  phylib: Fix delay argument of schedule_delayed_work
  NET/ixgbe: Fix powering off during shutdown
  NET/e1000e: Fix powering off during shutdown
  NET/e1000: Fix powering off during shutdown
  packet: avoid warnings when high-order page allocation fails
  gianfar: stop send queue before resetting gianfar
  myr10ge: again fix lro_gen_skb() alignment
  declance: convert to net_device_ops
  bfin_mac: convert to net_device_ops
  au1000: convert to net_device_ops
  atarilance: convert to net_device_ops
  a2065: convert to net_device_ops
  ixgbe: update real_num_tx_queues on changing num_rx_queues
  ixgbe: fix tx queue index
  Revert "rose: zero length frame filtering in af_rose.c"
  sfc: Use correct macro to set event bitfield
  sfc: Match calls to netif_napi_add() and netif_napi_del()
  bonding: Remove debug printk
  e1000/e1000: fix compile warning
  ehea: Fix incomplete conversion to net_device_ops
  ...
2009-04-16 07:41:56 -07:00
Ajit Khaparde
03a980d162 be2net: fix for default setting of pause auto-negotiation
This patch fixes the default value of pause auto-negotiation supported
by PCS.

Signed-off-by: Ajit Khaparde <ajitk@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-13 15:41:50 -07:00
Ajit Khaparde
728a9972d1 be2net: changes for checksum and segmentation offload
- Enables Rx checksum feature by default.
- Disables support for ipv6 tso.
- Changes in Rx path to handle Rx completions with various checksum options.

Signed-off-by: Ajit Khaparde <ajitk@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-13 15:41:22 -07:00
Yang Hongyang
e930438c42 Replace all DMA_nBIT_MASK macro with DMA_BIT_MASK(n)
This is the second go through of the old DMA_nBIT_MASK macro,and there're not
so many of them left,so I put them into one patch.I hope this is the last round.
After this the definition of the old DMA_nBIT_MASK macro could be removed.

Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Tony Lindgren <tony@atomide.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Greg KH <greg@kroah.com>
Cc: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-13 15:04:33 -07:00
Stephen Hemminger
65f71b8bd2 benet: use do_div() for 64 bit divide
The benet driver is doing a 64 bit divide, which is not supported in
Linux kernel on 32 bit architectures. The correct way to do this is to
use do_div().  Compile tested on i386 only.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-27 00:25:24 -07:00
Sathya Perla
4097f663cb be2net: cleanup rx/tx rate calculations
Hi, Pls accept this patch to cleanup rx/tx rate calculations as follows:
- check for jiffies wraparound
- remove typecast of a denominator
- do rate calculation only in workqueue context periodically

Signed-off-by: Sathya Perla <sathyap@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-24 16:40:13 -07:00
Sathya Perla
1ab1ab7543 be2net: fix to restore vlan ids into BE2 during a IF DOWN->UP cycle
This is a patch to reconfigure vlan-ids during an i/f down/up cycle

Signed-off-by: Sathya Perla <sathyap@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-19 23:56:46 -07:00
Sathya Perla
ea1dae11e0 be2net: replenish when posting to rx-queue is starved in out of mem conditions
This is a patch to replenish the rx-queue when it is in a starved
state (due to out-of-mem conditions)

Signed-off-by: Sathya Perla <sathyap@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-19 23:56:20 -07:00
Sathya Perla
6b7c5b947c net: Add be2net driver.
Signed-off-by: Sathya Perla <sathyap@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-11 23:32:22 -07:00