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* be2net: Fix to avoid a crash seen on PPC with LRO and Jumbo frames.Ajit Khaparde2009-06-293-16/+35
| | | | | | | | | | | | | | 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>
* be2net: receive asynchronous link status notifications from BESathya Perla2009-06-194-33/+80
| | | | | | | | 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>
* be2net: cleanup multicast_set cmd to avoid mc_list copySathya Perla2009-06-194-41/+32
| | | | | | | | 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>
* be2net: Use MCC queue for cmds that may be called in BH contextSathya Perla2009-06-191-17/+52
| | | | | | | | | | | | 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>
* be2net: Add MCC queue mechanism for BE cmdsSathya Perla2009-06-195-161/+455
| | | | | | | | | | | | | 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>
* be2net: Fix be_tx_q_clean() being called on freed queuesSathya Perla2009-06-111-5/+6
| | | | | | | 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>
* be2net: Fix early reset of rx-completionSathya Perla2009-06-111-2/+12
| | | | | | | 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>
* be2net: Fix rx stats updation in non-lro pathSathya Perla2009-06-111-1/+2
| | | | | | | 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>
* be2net: fix netdev stats rx_errors and rx_droppedSathya Perla2009-06-111-14/+29
| | | | | | | 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>
* be2net: Use cancel_delayed_work_sync instead of cancel_delayed_work()Sathya Perla2009-06-111-1/+1
| | | | | | | 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>
* be2net: Remove unnecessary frag list traversing.David S. Miller2009-06-091-31/+25
| | | | | | | | | | | | | | | | | | | | | | 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>
* net: dont update dev->trans_start in 10GB driversEric Dumazet2009-05-291-2/+0
| | | | | | | | | | | | | | | | | Followup of commits 9d21493b4beb8f918ba248032fefa393074a5e2b and 08baf561083bc27a953aa087dd8a664bb2b88e8e (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>
* Merge branch 'master' of ↵David S. Miller2009-05-192-7/+21
|\ | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/scsi/fcoe/fcoe.c
| * be2net: add two new pci device ids to pci device tableAjit Khaparde2009-05-192-5/+19
| | | | | | | | | | Signed-off-by: Ajit Khaparde <ajitk@serverengines.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2009-04-161-2/+2
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 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 ...
| * | Replace all DMA_nBIT_MASK macro with DMA_BIT_MASK(n)Yang Hongyang2009-04-141-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* | | Merge branch 'master' of ↵David S. Miller2009-04-171-2/+2
|\ \ \ | | |/ | |/| | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
| * | be2net: fix for default setting of pause auto-negotiationAjit Khaparde2009-04-141-2/+2
| |/ | | | | | | | | | | | | | | 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>
* / be2net: changes for checksum and segmentation offloadAjit Khaparde2009-04-141-6/+22
|/ | | | | | | | | - 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>
* benet: use do_div() for 64 bit divideStephen Hemminger2009-03-271-10/+18
| | | | | | | | | | 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>
* be2net: cleanup rx/tx rate calculationsSathya Perla2009-03-252-36/+72
| | | | | | | | | | 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>
* be2net: fix to restore vlan ids into BE2 during a IF DOWN->UP cycleSathya Perla2009-03-201-5/+5
| | | | | | | 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>
* be2net: replenish when posting to rx-queue is starved in out of mem conditionsSathya Perla2009-03-202-21/+30
| | | | | | | | 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>
* net: Add be2net driver.Sathya Perla2009-03-128-0/+4366
Signed-off-by: Sathya Perla <sathyap@serverengines.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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