- 09 Feb, 2009 5 commits
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Herbert Xu authored
gro: Optimise TCP packet reception As this function can be called more than half a million times for 10GbE, it's important to optimise it as much as we can. This patch uses bit ops to logical ops, as well as open coding memcmp to exploit alignment properties. Signed-off-by:
Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Herbert Xu authored
As this function can be called more than half a million times for 10GbE, it's important to optimise it as much as we can. This patch does some obvious changes to use 2-byte and 4-byte operations instead of byte-oriented ones where possible. Bit ops are also used to replace logical ops to reduce branching. Signed-off-by:
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Herbert Xu authored
This patch optimises the Ethernet header comparison to use 2-byte and 4-byte xors instead of memcmp. In order to facilitate this, the actual comparison is now carried out by the callers of the shared dev_gro_receive function. This has a significant impact when receiving 1500B packets through 10GbE. Signed-off-by:
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Herbert Xu authored
This patch prepares for the move of the same_flow checks out of dev_gro_receive. As such we need to remember the number of held packets since doing a loop just to count them every time is silly. Signed-off-by:
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David S. Miller authored
Several devices need to insert some "pre headers" in front of the main packet data when they transmit a packet. Currently we allocate only 16 bytes of pad room and this ends up not being enough for some types of hardware (NIU, usb-net, s390 qeth, etc.) So increase this to 32. Note that drivers still need to check in their transmit routine whether enough headroom exists, and if not use skb_realloc_headroom(). Tunneling, IPSEC, and other encapsulation methods can cause the padding area to be used up. Signed-off-by:
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- 07 Feb, 2009 35 commits
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David S. Miller authored
Conflicts: drivers/net/wireless/iwlwifi/iwl-agn.c drivers/net/wireless/iwlwifi/iwl3945-base.c
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Jesse Brandeburg authored
Signed-off-by:
Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by:
Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by:
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Alexander Duyck authored
Update the version number to 1.3.16 and update copyright dates for 2009. Signed-off-by:
Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by:
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Alexander Duyck authored
This patch addresses two minor items I found while cleaning up the igb driver for our sourceforge version. The first clears the context index if we don't flag that we need it. The second item is that eims_other should be used instead of bit defines when setting all of the EICS bits prior to reset. Signed-off-by:
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Alexander Duyck authored
It was seen with repeated interface up/down testing that there was a large stray between the stats reported by the queues and the stats reported by the HW. It was found to be an issue in that hw stats were being reset without first being recorded. This change records the stats before wiping them from the system via the reset. Signed-off-by:
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Alexander Duyck authored
Remove the setting of ring->count variables from igb_probe as they are duplicating the same configuration that is done igb_alloc_queues. Remove the err_hw_init tag as it can be replaced by err_sw_init. Signed-off-by:
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Alexander Duyck authored
The disable_av variable is never used by the driver and provides no value as it is likely a leftover debugging variable. I have removed it and replaced the one spot that checked for it with a check for a valid address. Signed-off-by:
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Alexander Duyck authored
As additional hardware is added to the igb driver it is easier to support the expansion via switch statements instead of using nested ifs. For this reason I am changing this to a switch statement. Signed-off-by:
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Alexander Duyck authored
Move igb_get_hw_control up so that it is called just after the reset in igb_resume. This notifies the HW sooner that the driver is reassuming control of the device. Signed-off-by:
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Alexander Duyck authored
The interrupt handler was reading eicr and then doing nothing with the result. I have removed the variable and the register read since they provide no value to the legacy interrupt handler. Signed-off-by:
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Alexander Duyck authored
There were several spots in the code making calls to adapter->hw when they could have just been accessing hw-> directly. I cleaned up the spots where this was visibly apparent. Signed-off-by:
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Alexander Duyck authored
There isn't much point in having the _82575 hanging off the end of this function since there aren't any other version of this function running around within this driver. This also allows for a bit of whitespace cleanup due to a shorter function name. Signed-off-by:
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Alexander Duyck authored
The igb watchdog task is modifying the watchdog timer twice duing a single run. It only needs to be called once to reschedule itself for 2 seconds from the last time it ran. In addition I removed the allocation of the mac_info structure since it is only called twice and is easier to access via the e1000_hw struct. Signed-off-by:
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Alexander Duyck authored
This patch cleans up igb_netpoll so that it is more friendly with both the current napi and newly introduced GRO features. Signed-off-by:
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Alexander Duyck authored
Add a counter for dma out of sync errors reported via interrupt. Signed-off-by:
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Alexander Duyck authored
Most of the code for the testing has pretty much become stale at this point and is need of update. This update just streamlines most of the code, widens the range of interrupt testing. Signed-off-by:
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Alexander Duyck authored
This driver is currently using HW_CSUM which is not correct. Update this to use the IP_CSUM and IPV6_CSUM flags. In addition consolidate the TSO flag setting. Signed-off-by:
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Alexander Duyck authored
This statistic is not used and so it is safe to remove Signed-off-by:
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Alexander Duyck authored
All of the nvm ops have the tag _nvm added to the end which is redundant since all of the calls to the ops have to go through the nvm ops struct anyway. Signed-off-by:
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Alexander Duyck authored
This patch renames write_phy_reg to write_reg and read_phy_reg to read_reg. It seems redundant to call out phy in an operation that is part of the phy_ops struct. Signed-off-by:
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Alexander Duyck authored
Instead of pulling the mac address from EEPROM it is easier to pull it from the RAL/RAH registers and then just copy it into the address structures. Signed-off-by:
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Alexander Duyck authored
This patch makes dev_spec a union and simplifies it so that it does not require dynamic allocation and freeing in the driver. Signed-off-by:
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Alexander Duyck authored
Add a link check function to contain all activities related to verifying that the link is present. The current approach is a bit cludgy and needs to be cleaned up. Signed-off-by:
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Alexander Duyck authored
Since igb supports only pci-e nics and there is no plan to support any legacy pci parts in the driver there isn't really much need for checking to see if an io port is needed. In the unlikely event that we do begin supporting legacy pci parts then we can see about adding this code back to the driver. Signed-off-by:
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Alexander Duyck authored
This patch moves the initialization of the number of queues into set_interrupt_capability. This allows the number of queues to increase in the unlikely event that the system initially fails to allocate enough msi-x interrupts, does a suspend/resume, and then can allocate enough interrupts on resume. Signed-off-by:
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Alexander Duyck authored
buffsz is being repeatedly set when allocaing buffers. Since this value should only need to be set once in the function I am moving it out of the looped portion of the path. Signed-off-by:
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Alexander Duyck authored
While cleaning up the skb_over panic with small frames I found there was room for improvement in the ordering of operations within the rx receive flow. These changes will place the prefetch for the next descriptor to a point earlier in the rx path. Signed-off-by:
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David S. Miller authored
Unfortunately, the OF device tree nodes for SBUS and PCI hme devices have the same device node name on some systems. So if the name of the parent node isn't 'sbus', skip it. Based upon an excellent report and detective work by Meelis Roos and Eric Brower. Signed-off-by:
Meelis Roos <mroos@linux.ee>
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Peter P Waskiewicz Jr authored
Now that our set_num_queues() routines for each feature are re-entrant, and can be called at any point, they shouldn't zero out the feature's indices or mask bits. Subsequent calls into those routines for those features can result in zero Rx and Tx queues being assigned, causing a panic later in driver reinitialization. Signed-off-by:
Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by:
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Ayaz Abdulla authored
This patch bumps the version up to 63 Signed-off-by:
Ayaz Abdulla <aabdulla@nvidia.com> Signed-off-by:
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Ayaz Abdulla authored
This patch adds another type of recoverable error to the driver. It also modifies the sequence for recovery to include a mac reset and clearing of interrupts. Signed-off-by:
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Ayaz Abdulla authored
This patch fixes the ethtool tx csum "set" command. A recent patch was submitted to remove HW_CSUM and use IP_CSUM instead. Therefore, the corresponding ethtool command should also be modified. Signed-off-by:
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Ayaz Abdulla authored
This patch fixes an issue with the suspend/resume cycle with msi interrupts. See bugzilla number 10487 for more details. The fix is to re-setup a private msi pci config offset field. Signed-off-by:
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Ayaz Abdulla authored
This patch updates the logic used to communicate with the mgmt unit. It also adds a version check for a newer mgmt unit firmware. * Fixed udelay to schedule_timeout_uninterruptible Signed-off-by:
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Ilpo Järvinen authored
$ diff-funcs xs_udp_write_space net/sunrpc/xprtsock.c net/sunrpc/xprtsock.c xs_tcp_write_space --- net/sunrpc/xprtsock.c:xs_udp_write_space() +++ net/sunrpc/xprtsock.c:xs_tcp_write_space() @@ -1,4 +1,4 @@ - * xs_udp_write_space - callback invoked when socket buffer space + * xs_tcp_write_space - callback invoked when socket buffer space * becomes available * @sk: socket whose state has changed * @@ -7,12 +7,12 @@ * progress, otherwise we'll waste resources thrashing kernel_sendmsg * with a bunch of small requests. */ -static void xs_udp_write_space(struct sock *sk) +static void xs_tcp_write_space(struct sock *sk) { read_lock(&sk->sk_callback_lock); - /* from net/core/sock.c:sock_def_write_space */ - if (sock_writeable(sk)) { + /* from net/core/stream.c:sk_stream_write_space */ + if (sk_stream_wspace(sk) >= sk_stream_min_wspace(sk)) { struct socket *sock; struct rpc_xprt *xprt; $ codiff net/sunrpc/xprtsock.o net/sunrpc/xprtsock.o.new net/sunrpc/xprtsock.c: xs_tcp_write_space | -163 xs_udp_write_space | -163 2 functions changed, 326 bytes removed net/sunrpc/xprtsock.c: xs_write_space | +179 1 function changed, 179 bytes added net/sunrpc/xprtsock.o.new: 3 functions changed, 179 bytes added, 326 bytes removed, diff: -147 Signed-off-by:Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by:
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