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path: root/drivers/net/igb/igb_main.c
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* igb: correctly offset 82575 flow control watermarks by 16 bytesAlexander Duyck2009-12-23
| | | | | | | | | | The watermark values for the 82575 were not being set correctly. As a result the high and low watermark values were set to the same value which can lead to excess xon/xoff packets being generated. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: fix handling of mailbox collisions between PF/VFAlexander Duyck2009-12-12
| | | | | | | | | This patch changes the handling of collisions between the use of the PF/VF sides of the mailbox. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* drivers/net: Move && and || to end of previous lineJoe Perches2009-12-03
| | | | | | | | | | | | | | Only files where David Miller is the primary git-signer. wireless, wimax, ixgbe, etc are not modified. Compile tested x86 allyesconfig only Not all files compiled (not x86 compatible) Added a few > 80 column lines, which I ignored. Existing checkpatch complaints ignored. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: remove use of skb_dma_map from driverAlexander Duyck2009-12-02
| | | | | | | | | | | | This change removes skb_dma_map/unmap calls from the igb driver due to the fact that the call is incompatible with iommu enabled kernels. In order to prevent warnings about using the wrong unmap call I have added a mapped_as_page value to the buffer_info structure to track if the mapped region is a page or a buffer. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: Add full support for 82580 devicesAlexander Duyck2009-11-20
| | | | | | | | | This patch makes use of the 82580 PHY and MAC support added and adds a set of supported device IDs for said hardware. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* drivers/net: request_irq - Remove unnecessary leading & from second argJoe Perches2009-11-19
| | | | | | | | | | | | Not as fancy as coccinelle. Checkpatch errors ignored. Compile tested allyesconfig x86, not all files compiled. grep -rPl --include=*.[ch] "\brequest_irq\s*\([^,\)]+,\s*\&" drivers/net | while read file ; do \ perl -i -e 'local $/; while (<>) { s@(\brequest_irq\s*\([^,\)]+,\s*)\&@\1@g ; print ; }' $file ;\ done Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: only recycle page if it is on our numa nodeAlexander Duyck2009-11-13
| | | | | | | | | | This patch makes it so that we only recycle pages when they are from the local NUMA node. Non-local pages are freed and replaced with locally allocated pages. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: check for packets on all tx rings when link is downAlexander Duyck2009-11-13
| | | | | | | | | | | We were previously only checking the first tx ring to see if it had any packets in it when the link when down. However we should be checking all of the rings so this patch makes it so that all of the rings are now being checked. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: Rework how netdev->stats is handledAlexander Duyck2009-11-13
| | | | | | | | | | | | | | | This patch does some refactoring work that I felt was needed after reviewing the changes recently submitted relating to the replacement of net_stats with netdev->stats. This patch essentially creates two different collections of stats. The first handles the adapter specific states and is stored in gstring_stats, and the second is for netdev specific stats and is stored in gstring_net_stats. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: when number of CPUs > 4 combine tx/rx queues to allow more queuesAlexander Duyck2009-11-13
| | | | | | | | | | | This patch makes it so that nics such as 82576 and newer can support more hardware queues when there are more than 4 cpus by combining a tx/rx queue pair onto one interrupt so that 8 queue pairs can be supported and thus allow for more queues. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: move timesync init into a seperate functionAlexander Duyck2009-11-13
| | | | | | | | Current code is quite large and making igb_probe difficult to read. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: cleanup whitespace issues in igb_main.cAlexander Duyck2009-10-28
| | | | | | | | | This patch goes through and cleans up whitespace issues in igb_main.c to help improve readability. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: open up SCTP checksum offloads to all MACs 82576 and newerAlexander Duyck2009-10-28
| | | | | | | | | Going forward the plan is to have the MACs support SCTP checksum offloads so change the check from == to >=. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: limit minimum mtu to 68 to keep ip bound to interfaceAlexander Duyck2009-10-28
| | | | | | | | | Limit the minimum mtu to 68 in order to prevent ip from being unbound from the interface. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: add pci_dev in few spots to clean up use of dev_err/info/warnAlexander Duyck2009-10-28
| | | | | | | | | | This patch relpaces several references to adapter->pdev->dev with just pdev->dev. This allows for cleanup of several multiline dev_err/info calls. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: replace unecessary &adapter->hw with just hw where applicableAlexander Duyck2009-10-28
| | | | | | | | | This patch just cleans up some unecessary references to the adapter->hw member when it has already been placed in a local variable named hw. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: cleanup clean_rx_irq_adv and alloc_rx_buffers_advAlexander Duyck2009-10-28
| | | | | | | | | | This patch cleans up some whitespace issues in clean_rx_irq_adv. It also adds NUMA aware page allocation and dma error handling to alloc_rx_buffers_adv. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: cleanup igb xmit frame pathAlexander Duyck2009-10-28
| | | | | | | | | | This patch cleans up the xmit frame path for igb to better handle xmit frame errors and avoid null pointer exceptions. It also cleans up some whitespace issues found in the xmit frame path. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: Remove invalid stats countersAlexander Duyck2009-10-28
| | | | | | | | | | There are several counters being used like they are static when in fact they are clear on read. In order to prevent the values from being incorrect I am removing the defunct counters. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: cleanup interrupt enablement in regards to msix_otherAlexander Duyck2009-10-28
| | | | | | | | | | | This patch changes a few things so that instead of firing a link status interrupt directly the get_link_status bit is set and the watchdog is scheduled. In addition the mailbox bit is now only enabled if VFs are enabled. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: change queue ordering for 82576 based adaptersAlexander Duyck2009-10-28
| | | | | | | | | | This patch changes the queue ordering for 82576 adapters so that if VFs are enabled the queues will first be allocated out of the PF pool. Any remaining queues will be allocated out of other VMDq pools. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: cleanup code related to ring resource allocation and freeAlexander Duyck2009-10-28
| | | | | | | | | This patch cleans up some of the ring alloc and free code to better handle exceptions such as attempting to free resources on an already freed ring. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: make tx hang check multiqueue, check eop descriptorAlexander Duyck2009-10-28
| | | | | | | | | | This change makes the tx hang check run over all tx queues instead of just queue 0. Also have hang display info on EOP descriptor instead of the descriptor at the start of the chain. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: move global_quad_port_a from global into local static defineAlexander Duyck2009-10-28
| | | | | | | | | This change moves global_quad_port_a into igb_probe as a static define since it doesn't actually need to be global. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: only process global stats in igb_update_statsAlexander Duyck2009-10-28
| | | | | | | | | | This patch moves the update of adapter->net_stats.rx/tx values out of the interrupt routine and into igb_update_stats by just adding together the tx/rx byte/packet counts for the rings. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: move vf init into a seperate functionAlexander Duyck2009-10-28
| | | | | | | | | This patch moves VF initialization into a seperate function to help improve the readability of igb_probe. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: rework handling of the vfta and vlvf registers in relation to mng_vlanAlexander Duyck2009-10-28
| | | | | | | | | This patch corrects some errors in how vlans are being handled when vfs start interacting with the management vlans. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: rework use of VMOLR in regards to PF and VFsAlexander Duyck2009-10-28
| | | | | | | | | | | This patch updates the use of the VMOLR to include enabling multicast promiscous for the VFs should they attempt to send over 30 multicast addresses or if they use the new message type to enable multicast promiscuous. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: replace the VF clear_to_send with a flags valueAlexander Duyck2009-10-28
| | | | | | | | | In order to support future features it is easiest to replace the clear_to_send boolean with a flag value. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: use packet buffer sizes from RXPBS registerAlexander Duyck2009-10-28
| | | | | | | | | | This patch changes the configuration for 82576 so that it uses the actual value of the 82576 rx packet buffer size instead of just assuming the value. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: cleanup some of the code related to hw timestampingAlexander Duyck2009-10-28
| | | | | | | | | | The code for the hw timestamping is a bit bulky and making some of the functions difficult to read. In order to clean things up a bit I am moving the timestamping operations into seperate functions. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: add support for seperate tx-usecs setting in ethtoolAlexander Duyck2009-10-28
| | | | | | | | | This patch adds support for a seperate tx-usecs interrupt moderation setting in ethtool which is supported when tx and rx interrupt vectors are sperated. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: make tx ring map and free functionality non-staticAlexander Duyck2009-10-28
| | | | | | | | | | | | This change makes a minor change to the xmit_frame_ring_adv funcition in that it moves 2 checks from it into the xmit_frame_adv since the checks were not ring specific. In addition it exports the xmit_frame_ring_adv and the unmap_and_free_tx_resource calls so that they can be used by other code such as the ethtool loopback testing calls. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: re-use ring configuration code in ethtool testingAlexander Duyck2009-10-28
| | | | | | | | | | | Since all of the ring code is now specific to the ring instead of the adapter struct it is possible to cut a large section of code out of the ethtool testing configuraiton since we can just use the existing functions to configure the rings. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: setup vlan tag replication stripping in igb_vmm_controlAlexander Duyck2009-10-28
| | | | | | | | | This update adds vlan tag stripping for inter-vf communications to the igb_vmm_control configuration function. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: delay VF reset notification until after interrupts are enabedAlexander Duyck2009-10-28
| | | | | | | | | | This update delays the VF reset notification until after interrupts are enabled. Otherwise there is a chance of having the VF try to reset itself too soon and being ignored by the PF as a result. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: move the multiple receive queue configuration into seperate functionAlexander Duyck2009-10-28
| | | | | | | | | | | | This patch moves the multiple receive queue configuration into a seperate function from igb_configure_rx. We can essentially do the configuration for the multiple receive queues just prior to enabling the RX and this will allow us to seperate the queue enablement from the receive queue layout configuration. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: place a pointer to the netdev struct in the ring itselfAlexander Duyck2009-10-28
| | | | | | | | | | This change adds a pointer to the netdev to the ring itself. The idea being at some point in the future it will be possible to support multiple netdevs from a single adapter struct. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: add a flags value to the ringAlexander Duyck2009-10-28
| | | | | | | | | | | This patch adds a flags value to the ring that cleans up some of the last remaining items from the ring in order to help seperate it from the adapter struct. By implementing these flags it becomes possible for different rings to support different functions such as rx checksumming. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: move alloc_failed and csum_err stats into per rx-ring statAlexander Duyck2009-10-28
| | | | | | | | | | | | The allocation failed and checksum error stats are currently kept as a global stat. If we end up allocating the queues to multiple netdevs then the global counter doesn't make much sense. For this reason I felt it necessary to move the alloc_rx_buff_failed stat into the rx_stats portion of the rx_ring. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: move rx_buffer_len into the ring structureAlexander Duyck2009-10-28
| | | | | | | | | | This patch moves the rx_buffer_len value into the ring structure. This allows greater flexibility and the option of doing things such as supporting packet split only on some queues, or enabling virtualization. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: add pci device pointer to ring structureAlexander Duyck2009-10-28
| | | | | | | | | This patch adds a pci device pointer to the ring structure. The main use of this pointer is for memory mapping/unmapping of the rings. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: change the head and tail offsets into pointersAlexander Duyck2009-10-28
| | | | | | | | | | | | Since we are writting to the head/tail pointers frequently we might as well save ourselves some processing time by converting the head and tail offsets directly to pointers. This will shave a few cycles off the rx/tx path and allows us to move one step closer to the rings being a bit more independant of each other. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: move SRRCTL register configuration into ring specific configAlexander Duyck2009-10-28
| | | | | | | | | | The SRRCTL register exists per ring. Instead of configuring all of them in the RCTL configuration which is meant to be global it makes more sense to move this out into the ring specific configuration. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: remove rx_ps_hdr_lenAlexander Duyck2009-10-28
| | | | | | | | | | | This patch removes the rx_ps_hdr_len which isn't really needed since we can now use rx_buffer_len less than 1K to indicate that we are in a packet split mode. We also don't need it since we always use a half page for the data buffers when receiving so we always know the size to map/unmap. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: move the tx and rx ring specific config into seperate functionsAlexander Duyck2009-10-28
| | | | | | | | | This change makes the tx and rx config a bit cleaner by breaking out the ring specific configuration from the generic rx and tx configuration. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: increase minimum rx buffer size to 1KAlexander Duyck2009-10-28
| | | | | | | | | | This update increases the minimum rx buffer size to 1K. The reason for this change is to support SR-IOV and avoid any conflicts with the rings being able to set their own MTU sizes. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: remove rx checksum good counterAlexander Duyck2009-10-28
| | | | | | | | | | | Counting packets with a good checksum can cause a significant amount of cache line bouncing due to the shared counter being written to by all of the queues. In order to avoid this I am removing the counter since we still have the checksum failed counter which will tell us if there are any issues. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: add new data structure for handling interrupts and NAPIAlexander Duyck2009-10-28
| | | | | | | | | | | Add a new igb_q_vector data structure to handle interrupts and NAPI. This helps to abstract the rings away from the adapter struct. In addition it allows for a bit of consolidation since a tx and rx ring can share a q_vector. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Use netdev_alloc_skb_ip_align()Eric Dumazet2009-10-13
| | | | | Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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