- 28 Jan, 2008 40 commits
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Olof Johansson authored
pasemi_mac: SKB unmap optimization Avoid touching skb_shinfo() in the unmap path, since it turns out to normally cause cache misses and delays. instead, save number of fragments in the TX_RING_INFO structures since that's all that's needed anyway. Signed-off-by:
Olof Johansson <olof@lixom.net> Signed-off-by:
Jeff Garzik <jeff@garzik.org>
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Olof Johansson authored
pasemi_mac: Software-based LRO support Implement LRO for pasemi_mac. Pretty straightforward. Signed-off-by:
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Olof Johansson authored
pasemi_mac: Improve RX interrupt mitigation Currently the receive side interrupts will go off on the reception of a packet, NAPI will poll the ring and keep polling as long as there's a decent amount of packets to receive. This is less than optimal, especially for LRO where it's better if we have a more substantial amount of packets to process at once, to get the real LRO benefits. So, set the count threshold to a higher value and use the timeout feature that will give us an interrupt even if not enough packets have come in to set off the count threshold. FIXME: It'd be real nice to have ethtool support for users to tune this at runtime. Signed-off-by:
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Olof Johansson authored
pasemi_mac: Fix TX cleaning This is a bit awkward. We don't have a timer-delayed interrupt on TX complete, but we have a count threshold. So set that reasonably high (32 packets), and schedule the NAPI poll when it goes off. Also bump a regular timer that will take care of rotting packets for the last 1..31 ones in case we don't trigger a TX interrupt (and there's no RX activity that would otherwise trigger the poll). The longer-term fix is to separate TX from RX NAPI and do two separate poll loops. Signed-off-by:
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Olof Johansson authored
pasemi_mac: performance tweaks * Seems like we do better with a smaller RX ring, probably because chances of still having the SKB cached are better * Const-ify variables to get better code generation and fewer reloads * Move prefetching around a little, and try to prefetch the whole SKB * Set NETIF_F_HIGHDMA * Misc other minor tweaks Signed-off-by:
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Olof Johansson authored
pasemi_mac: Convert to new dma library Convert the pasemi_mac driver to the new platform global DMA manaagement library. This also does a couple of other minor cleanups w.r.t. channel management. Signed-off-by:
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Olof Johansson authored
pasemi: DMA engine management library Introduce a DMA management library to manage the various DMA resources on the PA Semi SoCs. Since several drivers need to allocate these shared resources, provide some abstractions as well as allocation/free functions for channels, etc. Signed-off-by:
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Olof Johansson authored
pasemi_mac: Move register definitions to include/asm-powerpc Move the common register formats and descriptor layouts from drivers/net/pasemi_mac.h to include/asm-poewrpc/pasemi_dma.h Previously only the ethernet driver was using them, but other drivers are coming up that will also use them, so it makes sense to share the constants. Signed-off-by:
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Olof Johansson authored
pasemi_mac: RX/TX ring management cleanup Prepare a bit for supporting multiple TX queues by cleaning up some of the ring management and shuffle things around a bit. Signed-off-by:
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Stephen Hemminger authored
When using larger MTU's sky2 driver changes from allocating one data area, to using multiple pages. The threshold for this was based on a heuristic where the cost of a single allocation is bigger than one page. Since the allocator has changed, this heuristic is now incorrect; instead just make the threshold be when the total size of the allocation is greater than one page. Signed-off-by:
Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by:
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Stephen Hemminger authored
The sky2 driver was not aligning the IP header on receive buffers. This workaround is only needed on hardware with broken FIFO, newer chips without FIFO can just DMA to unaligned address. Signed-off-by:
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Francois Romieu authored
- whitespaces vs tabs - use 80 cols - use if_mii - use netdev_priv - remove useless cast to void * - PCI device id does not need to be globally available Signed-off-by:Francois Romieu <romieu@fr.zoreil.com>
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Francois Romieu authored
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Francois Romieu authored
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Francois Romieu authored
drivers/net/r6040.c: In function 'rx_buf_alloc': drivers/net/r6040.c:262: warning: passing argument 2 of 'pci_map_single' makes pointer from integer without a cast Signed-off-by: -
Komuro authored
Signed-off-by:
Komuro <komurojun-mbn@nifty.com> Signed-off-by:
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Jeff Garzik authored
Signed-off-by:Jeff Garzik <jgarzik@redhat.com>
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Divy Le Ray authored
Synchronize memory access before ringing the Tx door bell. Signed-off-by:
Divy Le Ray <divy@chelsio.com> Signed-off-by:
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Divy Le Ray authored
Disable PEX errors. The HW generates false positives. Update RSS hash function to a symmetric algorithm. Update T3C HW support Signed-off-by:
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Divy Le Ray authored
Remove unused argument in sysfs methods Signed-off-by:
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Divy Le Ray authored
Do not use skb->cb to stash unmap info, save the info to the descriptor state. Signed-off-by:
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Divy Le Ray authored
Bump up FW version to 5.0. Do not downgrade FW within the same major version range. Signed-off-by:
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Divy Le Ray authored
Add PCI recovery support Signed-off-by:
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Divy Le Ray authored
Remove sysfs entries before unregistering the net devices. Signed-off-by:
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Divy Le Ray authored
Subdevice ID is not necessarily set to 1. Use wild card for PCI device matching Signed-off-by:
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Divy Le Ray authored
Return error code when msi-x settings fail. Signed-off-by:
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Jeff Garzik authored
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Jeff Garzik authored
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Jeff Garzik authored
- checkpatch fixes - fix bogus and uninitialized return codes in r6040_start_xmit() - netdev_get_settings() fix obvious locking bug flagged by compiler warning - set DMA consistent mask - remove unnecessary setting of dev->base_addr Signed-off-by: -
Jeff Garzik authored
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Peter Korsgaard authored
dm_write_async and dm_write_reg_async are almost identical. Move common functionality to dm_write_async_helper (saves ~256b). Signed-off-by:
Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by:
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Alan Cox authored
Signed-off-by:
Alan Cox <alan@redhat.com> Signed-off-by:
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Alan Cox authored
3c501 leads the way... 8) Signed-off-by:
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Adrian Bunk authored
This patch #if 0's the following unused functions: - espi.c:t1_espi_set_misc_ctrl() - sge.c:t1_sched_set_max_avail_bytes() - sge.c:t1_sched_set_drain_bits_per_us() Signed-off-by:
Adrian Bunk <bunk@kernel.org> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> 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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Joe Perches authored
Signed-off-by:
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Joe Perches authored
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