- 27 May, 2009 30 commits
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Herbert Xu authored
As we know the only packets which need the final pskb_may_pull are completely non-linear, and have all the required bits in frag0, we can perform a straight memcpy instead of going through pskb_may_pull and doing skb_copy_bits. 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
This patch optimises the IPv4 GRO code by using 32-bit loads (instead of 16-bit ones) on the ID and length checks in the receive function. Signed-off-by:
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Herbert Xu authored
For the overwhelming majority of cases, skb_gro_header's return value cannot be NULL. Yet we must check it because of its current form. This patch splits it up into multiple functions in order to avoid this. Signed-off-by:
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Herbert Xu authored
By caching frag0_len, we can avoid checking both frag0 and the length separately in skb_gro_header. This helps as skb_gro_header is called four times per packet which amounts to a few million times at 10Gb/s. Signed-off-by:
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Herbert Xu authored
Instead of checking len > mss || len == 0, we can accomplish both by checking (len - 1) > mss using the unsigned wraparound. At nearly a million times a second, this might just help. Signed-off-by:
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Herbert Xu authored
The window has already been checked as part of the flag word so there is no need to check it explicitly. Signed-off-by:
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Herbert Xu authored
Instead of doing two 16-bit operations for the source/destination ports, we can do one 32-bit operation to take care both. Signed-off-by:
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Herbert Xu authored
Currently skb_gro_header is used for packets which put the hardware header in skb->data with the rest in frags. Since the drivers that need this optimisation all provide completely non-linear packets, we can gain extra optimisations by only performing the frag0 optimisation for completely non-linear packets. In particular, we can simply test frag0 (instead of skb_headlen) to see whether the optimisation is in force. Signed-off-by:
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Herbert Xu authored
This patch stores the offset/headlen in local variables as they're used repeatedly in skb_gro_offset. Signed-off-by:
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Herbert Xu authored
The function skb_gro_header is called four times per packet which quickly adds up at 10Gb/s. This patch inlines it to allow better optimisations. Some architectures perform multiplication for page_address, which is done by each skb_gro_header invocation. This patch caches that value in skb->cb to avoid the unnecessary multiplications. Signed-off-by:
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Herbert Xu authored
gcc does a poor job at generating code for the memcpy of the frags array in skb_gro_receive, which is the primary purpose of that function when merging frags. In particular, it can't utilise the alignment information of the source and destination. This patch open-codes the copy so we process words instead of bytes. Signed-off-by:
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Peter P Waskiewicz Jr authored
This patch fixes a build warning due to an unused label. Signed-off-by:
Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by:
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David S. Miller authored
Just use the constant 20 to keep things working. If someone is so motivated, this can be converted over to dynamic strings. I tried and it's a lot of work. But for now this is good enough. Signed-off-by: -
David S. Miller authored
It's going away. Just leave the constant "20" here so that behavior doesn't change. Signed-off-by: -
David S. Miller authored
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David S. Miller authored
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David S. Miller authored
Use MII_BUS_ID_SIZE instead. Signed-off-by: -
David S. Miller authored
BUS_ID_SIZE is really no more, and device names are dynamically allocated and thus can be any necessary size. So remove the BUG check here making sure BUS_ID_SIZE is at least as large as IFNAMSIZ. Signed-off-by: -
Jean Delvare authored
The r8169 driver supports 3 different families of network chips (RTL8169, RTL8168 and RTL8101). When an unknown version is found, the driver currently always defaults to the RTL8169 variant. This has very little chance to ever work for chips of the other families. So better define a per-family default. Signed-off-by:
Jean Delvare <jdelvare@suse.de> Acked-by:
Francois Romieu <romieu@fr.zoreil.com> Signed-off-by:
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Kevin Hao authored
Inspired by the patch for 8139too (bda6a15a). Currently we can't set mac address on a running ucc_geth device. But this is needed when you use this device as a bonding slave in bonding device in balance-alb mode. So add this feature for ucc_geth device. Signed-off-by:
Kevin Hao <kexin.hao@windriver.com> Signed-off-by:
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Tanli Chang authored
This patch is for supporting C10NEM. C10NEM is a switch module, which has back-to-back XAUI link connected to blades. Signed-off-by:
Tanli Chang <tanli.chang@sun.com> Signed-off-by:
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Don Skidmore authored
If we loaded the driver with out a SFP module plugged in it would leave it in a state that make it later unable to link when a module was plugged in. This patch corrects that by: ixgbe_probe() - moving the check for IXGBE_ERR_SFP_NOT_PRESENT from after get_invariants() to after reset_hw() as now reset_hw() is where this condition will be indentified. ixgbe_reset_hw_82598() - Enable this function to now return IXGBE_ERR_SFP_NOT_PRESENT. ixgbe_identify_sfp_module_generic() - This where the lack of SFP module is detected. Modifications are added to allow a different return value for modules that just haven't been plugged in yet. Other functions were updated to allow correct logging. Signed-off-by:
Don Skidmore <donald.c.skidmore@intel.com> Signed-off-by:
Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by:
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Peter P Waskiewicz Jr authored
Device ID 0x10d8 is the default silicon device ID for 82599. However, the device will not be functional without an EEPROM, so we want to prevent the driver from loading on the device. Otherwise, the driver will load, but no PHY setup or PCIe setup will occur, causing the device to be unusable. To prevent users from encountering this, just remove the device ID. Signed-off-by:
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Alexander Duyck authored
The phy port status register has the MDI-X status bit on bit 11, not bit 3 as is currently setup in the define. This patch corrects that so the correct bit is checked on igp PHY types. Signed-off-by:
Alexander Duyck <alexander.h.duyck@intel.com> Acked-by:
Bruce Allan <bruce.w.allan@intel.com> Signed-off-by:
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Jesper Dangaard Brouer authored
Based on previous patch from Jesper Dangaard Brouer. The RNBC (Receive No Buffers Count) register for the 82576, indicate that frames were received when there were no available buffers in host memory to store those frames (receive descriptor head and tail pointers were equal). The packet is still received by the NIC if there is space in the FIFO on the NIC. As the RNBC value is not a packet drop, the driver stores this value in net_stats.rx_fifo_errors to indicate that there were no system buffers available for the incoming packet. Actual dropped packets are counted in the MPC value. Saving the stats in dev->net_stats makes it visible via /proc/net/dev as "fifo", and thus viewable to ifconfig as "overruns" and 'netstat -i' as "RX-OVR". The Receive No Buffers Count (RNBC) can already be queried by ethtool -S as "rx_no_buffer_count". Signed-off-by:
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Jesper Dangaard Brouer authored
Based on the previous patches from Jesper Dangaard Brouer <hawk@comx.dk> Implement reading the per queue drop stats register RQDPC (Receive Queue Drop Packet Count). It counts the number of packets dropped by a queue due to lack of descriptors available. Notice RQDPC (Receive Queue Drop Packet Count) stats only gets incremented, if the DROP_EN bit it set (in the SRRCTL register for that queue). If DROP_EN bit is NOT set, then the some what equivalent count is stored in RNBC (not per queue basis). The RQDPC register is only 12 bit, thus the precision might suffer due to overrun in-netween the watchdog polling interval. Signed-off-by:
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Jeff Kirsher authored
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Alexander Beregalov authored
Also convert DPRINTK to pr_debug and dev_printk to dev_<foo>. Signed-off-by:
Alexander Beregalov <a.beregalov@gmail.com> Signed-off-by:
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Alexander Beregalov authored
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Alexander Beregalov authored
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- 26 May, 2009 10 commits
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Eric Dumazet authored
Get rid of private struct net_device_stats in "struct atl1e_adapter", and use one provided in struct net_device instead. Signed-off-by:
Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by:
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Eric Dumazet authored
We would like to get rid of netdev->trans_start = jiffies; that about all net drivers have to use in their start_xmit() function, and use txq->trans_start instead. This can be done generically in core network, as suggested by David. Some devices, (particularly loopback) dont need trans_start update, because they dont have transmit watchdog. We could add a new device flag, or rely on fact that txq->tran_start can be updated is txq->xmit_lock_owner is different than -1. Use a helper function to hide our choice. Signed-off-by:
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Yoshihiro Shimoda authored
Signed-off-by:
Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by:
Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by:
Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com> Signed-off-by:
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Yoshihiro Shimoda authored
This improves readability by collecting CPU dependency code. Signed-off-by:
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Yoshihiro Shimoda authored
Fix the problem that this driver not update rxdesc in sh_eth_rx. Signed-off-by:
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Yoshihiro Shimoda authored
Fix the probrem that TX/RX descirptor not set physical memory. Signed-off-by:
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Yoshihiro Shimoda authored
Fix the problem that may not work receive process by cache coherency issue. Signed-off-by:
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Jarek Poplawski authored
Right-shifts of signed integers are implementation-defined so unportable. With feedback from: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by:
Jarek Poplawski <jarkao2@gmail.com> Signed-off-by:
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Gabriel Paubert authored
Signed-off-by:
Gabriel Paubert <paubert@iram.es> Signed-off-by:
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Zhu Yi authored
The patch makes iwmc3200wifi select CFG80211 instead of LIB80211. This fixed module link error reported by Randy Dunlap <randy.dunlap@oracle.com> when compiling iwmc3200wifi without cfg80211 selected. WIRELESS_EXT is also selected by iwmc3200wifi. Signed-off-by:
Zhu Yi <yi.zhu@intel.com> Signed-off-by:
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