- 02 Jun, 2010 10 commits
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Steve Hodgson authored
Insert a structure at the start of the shared page that tracks the dma mapping refcnt. DMA into the next cache line of the (shared) page (plus EFX_PAGE_IP_ALIGN). When recycling a page, check the page refcnt. If the page is otherwise unused, then resurrect the other receive buffer that previously referenced the page. Be careful not to overflow the receive ring, since we can now resurrect n receive buffers in a row. Signed-off-by:
Ben Hutchings <bhutchings@solarflare.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Steve Hodgson authored
The cut-through design of the receive path means that packets that fail to match the appropriate MAC filter are not discarded at the MAC but are flagged in the completion event as 'to be discarded'. On networks with heavy multicast traffic, this can account for a significant proportion of received packets, so it is worthwhile to recycle the buffer immediately in this case rather than freeing it and then reallocating it shortly after. The only complication here is dealing with a page shared between two receive buffers. In that case, we need to be careful to free the dma mapping when both buffers have been free'd by the kernel. This means that we can only recycle such a page if both receive buffers are discarded. Unfortunately, in an environment with 1500mtu, rx_alloc_method=PAGE, and a mixture of discarded and not-discarded frames hitting the same receive queue, buffer recycling won't always be possible. Signed-off-by:
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Steve Hodgson authored
- Pull the loop handling into efx_init_rx_buffers_(skb|page) - Remove rx_queue->buf_page, and associated clean up code - Remove unmap_addr, since unmap_addr is trivially calculable This will allow us to recycle discarded buffers directly from efx_rx_packet(), since will never be in the middle of splitting a page. Signed-off-by:
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Steve Hodgson authored
Ensure that efx_fast_push_rx_descriptors() must only run from efx_process_channel() [NAPI], or when napi_disable() has been executed. Reimplement the slow fill by sending an event to the channel, so that NAPI runs, and hanging the subsequent fast fill off the event handler. Replace the sfc_refill workqueue and delayed work items with a timer. We do not need to stop this timer in efx_flush_all() because it's safe to send the event always; receiving it will be delayed until NAPI is restarted. Signed-off-by:
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Steve Hodgson authored
Formerly, efx_test_eventq_irq() assumed it was the only user of driver generated events. Allow it to interoperate with other users. We can create more than 16 channels, so align event codes with a multiple of 256 not 16. Signed-off-by:
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Steve Hodgson authored
It's been observed that some phys (such as the qt2025c) can do down-up-down-up transitions, presumably as pcs block lock settles down. The loopback selftest will start sending data immediately after the link comes up. Work around this by waiting for the link state to stay up for two consecutive polls, rather than one. Signed-off-by:
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Steve Hodgson authored
All of the ethtool code paths keep them in sync, but we need to ensure they are sync'd at start of day. Matches the sft9001 driver. Signed-off-by:
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Steve Hodgson authored
Under certain conditions a PHY may backpressure Falcon B0 in such a way that flushes timeout. In normal circumstances the phy poller would fix the PHY, and the flush could complete. But efx_nic_flush_queues() is always called after efx_stop_all(), so the poller has been stopped. Even if this weren't the case, how long would we have to wait for the poller to fix this? And several callers of efx_nic_flush_queues() are about to reset the device anyway - so we don't need to do anything. Work around this bug by scheduling a reset. Ensure that the MAC is never rewired back into the datapath before the reset runs (we already ignore all rx events anyway). Signed-off-by:
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Steve Hodgson authored
efx_pm_freeze() sets efx->state = STATE_FINI, which means efx_reset_work() will abort any scheduled resets. efx_pm_thaw() should reschedule efx_reset_work() again, since a freeze/thaw will not have reset the hardware. This bug was spotted by inspection - there is no real world example of this happening. Signed-off-by:
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Ben Hutchings authored
Most of its members are constant capabilities, not configuration. The new name is also consistent with the name of the pointer to it in struct efx_nic and the names of structures used by other PHY drivers. Signed-off-by:
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- 01 Jun, 2010 13 commits
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Jie Yang authored
Add AR8151 v2.0 Gigabit 1000 support Change jumbo frame size to 6K Update L0s/L1 rountine when link speed is 100M or 1G, set L1 link timer to 4 for l1d_2 and l2c_b2 set L1 link timer to 7 for l2c_b, set L1 link timer to 0xF for others. Update atl1c_suspend routine just refactory the function, add atl1c_phy_power_saving routine, when Wake On Lan enable, this func will be called to save power, it will reautoneg PHY to 10/100M speed depend on the link partners link capability. Update atl1c_configure_des_ring do not use l2c_b default SRAM configuration. Signed-off-by:Jie Yang <Jie.Yang@atheros.com> Signed-off-by:
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Eric Dumazet authored
As noticed by Julia Lawall, ipip6_tunnel_add_prl() incorrectly calls kzallloc(..., GFP_KERNEL) while a spinlock is held. She provided a patch to use GFP_ATOMIC instead. One possibility would be to convert this spinlock to a mutex, or preallocate the thing before taking the lock. After RCU conversion, it appears we dont need this lock, since caller already holds RTNL Signed-off-by:
Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by:
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Richard Cochran authored
This patch adds support for the IFF_ALLMULTI flag. Previously only the IFF_PROMISC flag was supported. Signed-off-by:
Richard Cochran <richard.cochran@omicron.at> Acked-By:
Krzysztof Halasa <khc@pm.waw.pl> Signed-off-by:
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Joe Perches authored
Signed-off-by:
Joe Perches <joe@perches.com> Signed-off-by:
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Joe Perches authored
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Joe Perches authored
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Joe Perches authored
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Sathya Perla authored
As mbox polling is done only in process context, it is better to use schedule_timeout() instead of udelay(). Signed-off-by:
Sathya Perla <sathyap@serverengines.com> Signed-off-by:
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Sathya Perla authored
This patch adds cleanup code (things like unregistering irq, disabling napi etc) to be_open() when an error occurs inside the routine. Signed-off-by:
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Steven Walter authored
Based on a patch from http://simon.baatz.info/wol-support-for-an983b/ Tested to resume from suspend by magic packet. Signed-off-by:
Steven Walter <stevenrwalter@gmail.com> Signed-off-by:
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Steven Walter authored
During the first suspend the chip would refuse to enter D3. Subsequent suspends worked okay. During resume the chip is commanded into D0. Doing so during initialization fixes the initial suspend. Signed-off-by:
Grant Grundler <grundler@parisc-linux.org> Signed-off-by:
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Florian Fainelli authored
Signed-off-by:
Florian Fainelli <florian@openwrt.org> Signed-off-by:
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Florian Fainelli authored
This patch adds support for using phylib and adds the required mdiobus driver stubs. This allows for less code to be present in the driver and removes the PHY status specific timer which is now handled by phylib directly. Signed-off-by:
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- 31 May, 2010 17 commits
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Daniel Mack authored
- shuffle around functions to get rid of forward declarations - fix some CodingStyle and indentation issues - last but not least, get rid of the following CONFIG_MODULE=n warning: drivers/net/arcnet/capmode.c:52: warning: ‘capmode_proto’ defined but not used Signed-off-by:
Daniel Mack <daniel@caiaq.de> Signed-off-by:
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David S. Miller authored
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Junchang Wang authored
readl() returns a 32-bit integer on all platforms. There is no need to cast its return value. Signed-off-by:
Junchang Wang <junchangwang@gmail.com> Signed-off-by:
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Junchang Wang authored
ioread32() returns a 32-bit integer on all platforms. There is no need to cast its return value. Signed-off-by:
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chas williams - CONTRACTOR authored
Instead of a fixed list of buffers, use the buffer pool correctly and keep track of the outstanding buffer indexes using a fixed table. Resolves reported HBUF_ERR's -- failures due to lack of receive buffers. Signed-off-by:
Chas Williams - CONTRACTOR <chas@cmf.nrl.navy.mil> Signed-off-by:
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chas williams - CONTRACTOR authored
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chas williams - CONTRACTOR authored
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chas williams - CONTRACTOR authored
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Eli Cohen authored
Today, there are no means to know which port of a hardware device a netdev interface uses. struct net_device conatins a field, dev_id, that can be used for that. Use this field to save the port number in ConnectX that is being used by the net device; port numbers are zero based. Signed-off-by:
Eli Cohen <eli@mellanox.co.il> Signed-off-by:
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Ian Campbell authored
Use newly introduced netif_notify_peers() method to ensure a gratuitous ARP is generated after a migration. Signed-off-by:
Ian Campbell <ian.campbell@citrix.com> Cc: Stephen Hemminger <shemminger@linux-foundation.org> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Cc: David S. Miller <davem@davemloft.net> Cc: netdev@vger.kernel.org Cc: xen-devel@lists.xensource.com Cc: stable@kernel.org Signed-off-by:
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Ian Campbell authored
Currently such notifications are only generated when the device comes up or the address changes. However one use case for these notifications is to enable faster network recovery after a virtual machine migration (by causing switches to relearn their MAC tables). A migration appears to the network stack as a temporary loss of carrier and therefore does not trigger either of the current conditions. Rather than adding carrier up as a trigger (which can cause issues when interfaces a flapping) simply add an interface which the driver can use to explicitly trigger the notification. Signed-off-by:
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Ian Campbell authored
This option causes a gratuitous ARP request, not a reply as the documentation currently suggests. Signed-off-by:
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Dan Carpenter authored
"phyinfo" can never be null here because we assigned it an address, so I removed both the assert and the second check inside the if statement. I removed the "phyinfo->phy_layer != NULL" check as well because that was asserted earlier. Walter Harms suggested I move the "phyinfo->phy_ref_count++;" outside the if condition for readability, so I have done that. Signed-off-by:
Dan Carpenter <error27@gmail.com> Acked-by:
Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by:
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Dan Carpenter authored
We already dereferenced uaddr towards the start of the function when we checked that "uaddr->sa_family != AF_CAIF". Both the check here and the earlier check were added in bece7b23: "caif: Rewritten socket implementation". Before that patch, we assumed that we recieved a valid pointer for uaddr, and based on that, I have removed this check. Signed-off-by:
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Julia Lawall authored
Use memdup_user when user data is immediately copied into the allocated region. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression from,to,size,flag; position p; identifier l1,l2; @@ - to = \(kmalloc@p\|kzalloc@p\)(size,flag); + to = memdup_user(from,size); if ( - to==NULL + IS_ERR(to) || ...) { <+... when != goto l1; - -ENOMEM + PTR_ERR(to) ...+> } - if (copy_from_user(to, from, size) != 0) { - <+... when != goto l2; - -EFAULT - ...+> - } // </smpl> Signed-off-by:
Julia Lawall <julia@diku.dk> Signed-off-by:
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Julia Lawall authored
Use memdup_user when user data is immediately copied into the allocated region. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression from,to,size,flag; position p; identifier l1,l2; @@ - to = \(kmalloc@p\|kzalloc@p\)(size,flag); + to = memdup_user(from,size); if ( - to==NULL + IS_ERR(to) || ...) { <+... when != goto l1; - -ENOMEM + PTR_ERR(to) ...+> } - if (copy_from_user(to, from, size) != 0) { - <+... when != goto l2; - -EFAULT - ...+> - } // </smpl> Signed-off-by:
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Julia Lawall authored
Use memdup_user when user data is immediately copied into the allocated region. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression from,to,size,flag; position p; identifier l1,l2; @@ - to = \(kmalloc@p\|kzalloc@p\)(size,flag); + to = memdup_user(from,size); if ( - to==NULL + IS_ERR(to) || ...) { <+... when != goto l1; - -ENOMEM + PTR_ERR(to) ...+> } - if (copy_from_user(to, from, size) != 0) { - <+... when != goto l2; - -EFAULT - ...+> - } // </smpl> Signed-off-by:
Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by:
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