- 01 12月, 2012 1 次提交
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由 Ben Hutchings 提交于
Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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- 08 9月, 2012 2 次提交
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由 Stuart Hodgson 提交于
Allows an extra channel to override the standard receive_skb handler and also for extra non generic operations to be performed on remove. Also set default rx strategy so only skbs can be delivered to the PTP receive function. Signed-off-by: NStuart Hodgson <smhodgson@solarflare.com> Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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由 Stuart Hodgson 提交于
The PTP channel will have its own RX queue even though it's not a regular traffic channel. Original work by Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: NStuart Hodgson <smhodgson@solarflare.com> Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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- 17 7月, 2012 1 次提交
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由 Ben Hutchings 提交于
Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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- 11 7月, 2012 1 次提交
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由 Ben Hutchings 提交于
Fix incorrect start markers, wrapped summary lines, missing section breaks, incorrect separators, and some name mismatches. Delete a few that are content-free. Signed-off-by: NBen Hutchings <bhutchings@solarflare.com> Acked-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 10 5月, 2012 2 次提交
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由 David Riddoch 提交于
Previously we refilled with much larger batches, which caused large latency spikes. We now have many more much much smaller spikes! Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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由 David Riddoch 提交于
There was no runtime control of the fast_fill_limit in any case, so purged that field. Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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- 07 3月, 2012 1 次提交
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由 Ben Hutchings 提交于
The in-tree driver has never supported Driverlink. The rest of the comments are rather redundant, but we can usefully state what the requirements are on the buffer state. Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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- 25 2月, 2012 1 次提交
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由 Ben Hutchings 提交于
When pre-allocating skbs for received packets, we set ip_summed = CHECKSUM_UNNCESSARY. We used to change it back to CHECKSUM_NONE when the received packet had an incorrect checksum or unhandled protocol. Commit bc8acf2c ('drivers/net: avoid some skb->ip_summed initializations') mistakenly replaced the latter assignment with a DEBUG-only assertion that ip_summed == CHECKSUM_NONE. This assertion is always false, but it seems no-one has exercised this code path in a DEBUG build. Fix this by moving our assignment of CHECKSUM_UNNECESSARY into efx_rx_packet_gro(). Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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- 16 2月, 2012 2 次提交
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由 Ben Hutchings 提交于
When SR-IOV is enabled we may receive FLR (Function-Level Reset) events, associated queue flush events and requests from VF drivers at any time. Therefore we need to keep event queues and interrupts enabled whenever possible. Currently we stop interrupt-driven event processing before flushing RX and TX queues; efx_nic_flush_queues() then polls event queues for flush events and discards any others it finds. Change it to work with the regular event handling functions. Currently efx_start_channel() fills RX queues synchronously when a device is brought up. This could now race with NAPI, so change it to send fill events. This was almost entirely written by Steve Hodgson, formerly shodgson@solarflare.com. Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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由 Ben Hutchings 提交于
This makes it harder to accidentally send such events to TX-only channels. Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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- 31 1月, 2012 1 次提交
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由 Ben Hutchings 提交于
This function returns the page offset of the buffer, which can be calculated based on either its DMA address or its virtual address. It used to use the virtual address and we would cast that to unsigned long, as anything smaller would result in a compiler warning. Now that it's using the DMA address we should use unsigned int, matching the return type. It is also unnecessary to use __force. Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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- 27 1月, 2012 2 次提交
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由 Ben Hutchings 提交于
Replace checksummed and discard booleans from efx_handle_rx_event() with a bitmask, added to the flags field. Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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由 Ben Hutchings 提交于
Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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- 06 1月, 2012 1 次提交
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由 Ben Hutchings 提交于
Fix the following error: ERROR: return is not a function, parentheses are not required Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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- 17 12月, 2011 1 次提交
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由 Ben Hutchings 提交于
Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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- 04 12月, 2011 1 次提交
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由 Thomas Meyer 提交于
The advantage of kcalloc is, that will prevent integer overflows which could result from the multiplication of number of elements and size and it is also a bit nicer to read. The semantic patch that makes this change is available in https://lkml.org/lkml/2011/11/25/107Signed-off-by: NThomas Meyer <thomas@m3y3r.de> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 01 11月, 2011 1 次提交
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由 Paul Gortmaker 提交于
These files were using moduleparam infrastructure, but were not including anything for it -- which is fine when module.h is being implicitly included in all files, but that is going away. Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com>
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- 19 10月, 2011 1 次提交
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由 Eric Dumazet 提交于
To ease skb->truesize sanitization, its better to be able to localize all references to skb frags size. Define accessors : skb_frag_size() to fetch frag size, and skb_frag_size_{set|add|sub}() to manipulate it. Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 23 9月, 2011 1 次提交
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由 Ian Campbell 提交于
Signed-off-by: NIan Campbell <ian.campbell@citrix.com> Cc: Solarflare linux maintainers <linux-net-drivers@solarflare.com> Cc: Steve Hodgson <shodgson@solarflare.com> Cc: Ben Hutchings <bhutchings@solarflare.com> Cc: netdev@vger.kernel.org Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 11 8月, 2011 1 次提交
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由 Jeff Kirsher 提交于
Moves the Solarflare drivers into drivers/net/ethernet/sfc/ and make the necessary Kconfig and Makefile changes. CC: Steve Hodgson <shodgson@solarflare.com> CC: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
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- 23 5月, 2011 2 次提交
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由 Paul Gortmaker 提交于
After discovering that wide use of prefetch on modern CPUs could be a net loss instead of a win, net drivers which were relying on the implicit inclusion of prefetch.h via the list headers showed up in the resulting cleanup fallout. Give them an explicit include via the following $0.02 script. ========================================= #!/bin/bash MANUAL="" for i in `git grep -l 'prefetch(.*)' .` ; do grep -q '<linux/prefetch.h>' $i if [ $? = 0 ] ; then continue fi ( echo '?^#include <linux/?a' echo '#include <linux/prefetch.h>' echo . echo w echo q ) | ed -s $i > /dev/null 2>&1 if [ $? != 0 ]; then echo $i needs manual fixup MANUAL="$i $MANUAL" fi done echo ------------------- 8\<---------------------- echo vi $MANUAL ========================================= Signed-off-by: NPaul <paul.gortmaker@windriver.com> [ Fixed up some incorrect #include placements, and added some non-network drivers and the fib_trie.c case - Linus ] Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Paul Gortmaker 提交于
After discovering that wide use of prefetch on modern CPUs could be a net loss instead of a win, net drivers which were relying on the implicit inclusion of prefetch.h via the list headers showed up in the resulting cleanup fallout. Give them an explicit include via the following $0.02 script. ========================================= #!/bin/bash MANUAL="" for i in `git grep -l 'prefetch(.*)' .` ; do grep -q '<linux/prefetch.h>' $i if [ $? = 0 ] ; then continue fi ( echo '?^#include <linux/?a' echo '#include <linux/prefetch.h>' echo . echo w echo q ) | ed -s $i > /dev/null 2>&1 if [ $? != 0 ]; then echo $i needs manual fixup MANUAL="$i $MANUAL" fi done echo ------------------- 8\<---------------------- echo vi $MANUAL ========================================= Signed-off-by: NPaul <paul.gortmaker@windriver.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 05 4月, 2011 1 次提交
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由 Ben Hutchings 提交于
Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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- 02 4月, 2011 1 次提交
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由 Ben Hutchings 提交于
This is preparation for using the generic netdev features interface, and should have no effect in itself. Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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- 01 3月, 2011 3 次提交
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由 Ben Hutchings 提交于
Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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由 Steve Hodgson 提交于
Instead calculate the KVA of receive data. It's not like it's a hard sum. [bwh: Fixed to work with GRO.] Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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由 Steve Hodgson 提交于
[bwh: Forward-ported to net-next-2.6.] Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
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- 11 12月, 2010 1 次提交
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由 stephen hemminger 提交于
This driver now uses Generic Receive Offload, not the older LRO. Change references to LRO in names and comments. Signed-off-by: NStephen Hemminger <shemminger@vyatta.com> Acked-by: NBen Hutchings <bhutchings@solarflare.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 11 9月, 2010 3 次提交
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由 Steve Hodgson 提交于
- Allow the ring size to be specified in non power-of-two sizes (for instance to limit the amount of receive buffers). - Automatically size the event queue. Signed-off-by: NBen Hutchings <bhutchings@solarflare.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Ben Hutchings 提交于
In preparation for changes to the way channels and queue structures are allocated, revise the macros and functions used to look up and iterator over them. - Replace efx_for_each_tx_queue() with iteration over channels then TX queues - Replace efx_for_each_rx_queue() with iteration over channels then RX queues (with one exception, shortly to be removed) - Introduce efx_get_{channel,rx_queue,tx_queue}() functions to look up channels and queues by index - Introduce efx_channel_get_{rx,tx}_queue() functions to look up a channel's queues Signed-off-by: NBen Hutchings <bhutchings@solarflare.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Ben Hutchings 提交于
Signed-off-by: NBen Hutchings <bhutchings@solarflare.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 03 9月, 2010 1 次提交
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由 Eric Dumazet 提交于
fresh skbs have ip_summed set to CHECKSUM_NONE (0) We can avoid setting again skb->ip_summed to CHECKSUM_NONE in drivers. Introduce skb_checksum_none_assert() helper so that we keep this assertion documented in driver sources. Change most occurrences of : skb->ip_summed = CHECKSUM_NONE; by : skb_checksum_none_assert(skb); Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 26 6月, 2010 1 次提交
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由 Ben Hutchings 提交于
The hash appears immediately before the packet data, not at the beginning of the buffer. This means we can easily use negative offsets from the start of packet data, so adjust the data and length at the top of __efx_rx_packet() instead of wherever we consume the hash. Signed-off-by: NBen Hutchings <bhutchings@solarflare.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 25 6月, 2010 2 次提交
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由 Ben Hutchings 提交于
Signed-off-by: NBen Hutchings <bhutchings@solarflare.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Ben Hutchings 提交于
Replace EFX_ERR() with netif_err(), EFX_INFO() with netif_info(), EFX_LOG() with netif_dbg() and EFX_TRACE() and EFX_REGDUMP() with netif_vdbg(). Replace EFX_ERR_RL(), EFX_INFO_RL() and EFX_LOG_RL() using explicit calls to net_ratelimit(). Implement the ethtool operations to get and set message level flags, and add a 'debug' module parameter for the initial value. Signed-off-by: NBen Hutchings <bhutchings@solarflare.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 02 6月, 2010 4 次提交
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由 Steve Hodgson 提交于
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: NBen Hutchings <bhutchings@solarflare.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Steve Hodgson 提交于
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: NBen Hutchings <bhutchings@solarflare.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Steve Hodgson 提交于
- 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: NBen Hutchings <bhutchings@solarflare.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Steve Hodgson 提交于
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: NBen Hutchings <bhutchings@solarflare.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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