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* igb: Drop BUILD_BUG_ON check from igb_build_rx_bufferAlexander Duyck2013-03-051-7/+0
| | | | | | | | | | | | On s390 the igb driver was throwing a build error due to the fact that a frame built using build_skb would be larger than 2K. Since this is not likely to change at any point in the future we are better off just dropping the check since we already had a check in igb_set_rx_buffer_len that will just disable the usage of build_skb anyway. Signed-off-by: Alexander Duyck <[email protected]> Tested-by: Aaron Brown <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
* igb: Update igb to use a path similar to ixgbe to determine when to stop TxAlexander Duyck2013-02-151-13/+17
| | | | | | | | | | | | | | | | | | After reviewing the igb and ixgbe code I realized there are a few issues in how the code is structured. Specifically we are not checking the size of the buffers being used in transmits and we are not using the same value to determine when to stop or start a Tx queue. As such the code is prone to be buggy. This patch makes it so that we have one value DESC_NEEDED that we will use for starting and stopping the queue. In addition we will check the size of buffers being used when setting up a transmit so as to avoid a possible buffer overrun if we were to receive a frame with a block of data larger than 32K in skb->data. Signed-off-by: Alexander Duyck <[email protected]> Tested-by: Aaron Brown <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
* igb: Refix sparse warning in igb_get_i2c_clientCarolyn Wyborny2013-02-151-1/+1
| | | | | | | | | This patch correctly resolves the sparse warnings found with this function. Signed-off-by: Carolyn Wyborny <[email protected]> Tested-by: Aaron Brown <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
* igb: Fix for improper allocation flag in igb_get_i2c_clientCarolyn Wyborny2013-02-151-1/+1
| | | | | | | | | | This patch fixes the allocation function in igb_get_i2c_client to use GFP_ATOMIC instead of GFP_KERNEL because we have a spinlock. Reported-by: Dan Carpenter <[email protected]> Signed-off-by: Carolyn Wyborny <[email protected]> Tested-by: Aaron Brown <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
* igb: Fix for improper exit in igb_get_i2c_clientCarolyn Wyborny2013-02-151-6/+1
| | | | | | | | | | This patch fixes an issue where we check for irq's disabled then exit after explicitly disabling them with spin_lock_irqsave. Reported-by: Dan Carpenter <[email protected]> Signed-off-by: Carolyn Wyborny <[email protected]> Tested-by: Aaron Brown <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
* igb: Support using build_skb in the case that jumbo frames are disabledAlexander Duyck2013-02-151-34/+153
| | | | | | | | | | | This change makes it so that we can enable the use of build_skb for cases where jumbo frames are disabled. The advantage to this is that we do not have to perform a memcpy to populate the header and as a result we see a significant performance improvement. Signed-off-by: Alexander Duyck <[email protected]> Tested-by: Aaron Brown <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
* ethernet: Remove unnecessary alloc/OOM messages, alloc cleanupsJoe Perches2013-02-041-3/+2
| | | | | | | | | | | | | | | | alloc failures already get standardized OOM messages and a dump_stack. Convert kzalloc's with multiplies to kcalloc. Convert kmalloc's with multiplies to kmalloc_array. Fix a few whitespace defects. Convert a constant 6 to ETH_ALEN. Use parentheses around sizeof. Convert vmalloc/memset to vzalloc. Remove now unused size variables. Signed-off-by: Joe Perches <[email protected]> Signed-off-by: David S. Miller <[email protected]>
* igb: Don't give VFs random MAC addressesMitch A Williams2013-01-281-3/+3
| | | | | | | | | | | | | If the user has not assigned a MAC address to a VM, then don't give it a random one. Instead, just give it zeros and let it figure out what to do with them. Signed-off-by: Mitch Williams <[email protected]> CC: Andy Gospodarek <[email protected]> CC: Stefan Assmann <[email protected]> Tested-by: Aaron Brown <[email protected]> Tested-by: Stefan Assmann <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
* igb: Copyright string update to year 2013Akeem G. Abodunrin2013-01-191-2/+3
| | | | | | | | | | This patch updates Copyright year to 2013 v2: Changed Copyright year on Makefile Signed-off-by: Akeem G. Abodunrin <[email protected]> Tested-by: Aaron Brown <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
* igb: Replace rmb in Tx cleanup with read_barrier_dependsAlexander Duyck2013-01-191-1/+1
| | | | | | | | | | The rmb in the Tx cleanup path is a much stronger barrier than we really need. All that is really needed is a read_barrier_depends since the location of the EOP descriptor is dependent on the eop_desc value. Signed-off-by: Alexander Duyck <[email protected]> Tested-by: Aaron Brown <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
* igb: Add mechanism for detecting latched hardware Rx timestampMatthew Vick2013-01-181-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | Add a check against possible Rx timestamp freezing in the hardware via watchdog mechanism. This situation can occur when an Rx timestamp has been latched, but the packet has been dropped because the Rx ring is full. Whenever a packet comes in that should be timestamped, the Rx timestamp gets latched into the hardware registers and we will store the jiffy value in the rx_ring. The watchdog will keep track of his own jiffy timer whenever there is no valid timestamp in the registers. If the watchdog detects a valid timestamp in the registers, meaning that no Rx packet has consumed it yet, it will check which time is most recent: the last time in the watchdog or any time in the rx_rings. If the most recent "event" was more than 5 seconds ago, it will flush the Rx timestamp and print a warning message to the syslog. Cc: Richard Cochran <[email protected]> Signed-off-by: Matthew Vick <[email protected]> Acked-by: Richard Cochran <[email protected]> Acked-by: Jacob Keller <[email protected]> Tested-by: Aaron Brown <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
* igb: Add timeout for PTP Tx work itemMatthew Vick2013-01-181-0/+1
| | | | | | | | | | | | | | When transmitting a packet that must return a Tx timestamp, a work item gets scheduled to poll for the Tx timestamp being completed in hardware. Add a timeout on this work item of 15 seconds from when the driver gets the skb, after which it will stop polling. Report via stats and system log if this occurs. Cc: Richard Cochran <[email protected]> Signed-off-by: Matthew Vick <[email protected]> Acked-by: Jacob Keller <[email protected]> Tested-by: Aaron Brown <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
* igb: Add support for SW timestampingMatthew Vick2013-01-181-0/+2
| | | | | | | | | | | Enable SW timestamping for situations where the user may prefer it over HW timestamping or there may not be HW timestamping. Cc: Richard Cochran <[email protected]> Signed-off-by: Matthew Vick <[email protected]> Acked-by: Jacob Keller <[email protected]> Tested-by: Aaron Brown <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
* igb: Enable hwmon data output for thermal sensors via I2C.Carolyn Wyborny2013-01-181-6/+43
| | | | | | | | | Some of our adapters have internal sensors that report thermal data. This patch enables reporting of that data via sysfs. Signed-off-by: Carolyn Wyborny <[email protected]> Tested-by: Jeff Pieper <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
* igb: Add i2c interface to igb.Carolyn Wyborny2013-01-181-0/+269
| | | | | | | | | | Some of our adapters have sensors on them accessible via i2c and a private interface. This patch implements the kernel interface for i2c to those sensors. Subsequent patches will provide functions to export that data. Signed-off-by: Carolyn Wyborny <[email protected]> Tested-by: Jeff Pieper <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
* igb: Enable SR-IOV configuration via PCI sysfs interfaceGreg Rose2013-01-181-101/+219
| | | | | | | | | | Implement callback in the driver for the new PCI bus driver interface that allows the user to enable/disable SR-IOV virtual functions in a device via the sysfs interface. Signed-off-by: Greg Rose <[email protected]> Tested-by: Aaron Brown <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
* remove init of dev->perm_addr in driversJiri Pirko2013-01-091-2/+1
| | | | | | | | perm_addr is initialized correctly in register_netdevice() so to init it in drivers is no longer needed. Signed-off-by: Jiri Pirko <[email protected]> Signed-off-by: David S. Miller <[email protected]>
* drivers/net: fix up function prototypes after __dev* removalsGreg Kroah-Hartman2012-12-071-2/+1
| | | | | | | | | | | | The __dev* removal patches for the network drivers ended up messing up the function prototypes for a bunch of drivers. This patch fixes all of them back up to be properly aligned. Bonus is that this almost removes 100 lines of code, always a nice surprise. Signed-off-by: Greg Kroah-Hartman <[email protected]> Signed-off-by: David S. Miller <[email protected]>
* igb: Update igb version to 4.1.2Carolyn Wyborny2012-12-071-2/+2
| | | | | | Signed-off-by: Carolyn Wyborny <[email protected]> Tested-by: Aaron Brown <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
* igb: release already assigned MSI-X interrupts if setup failsStefan Assmann2012-12-071-6/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | During MSI-X setup the system might run out of vectors. If this happens the already assigned vectors for this NIC should be freed before trying the disable MSI-X. Failing to do so results in the following oops. kernel BUG at drivers/pci/msi.c:341! [...] Call Trace: [<ffffffff8128f39d>] pci_disable_msix+0x3d/0x60 [<ffffffffa037d1ce>] igb_reset_interrupt_capability+0x27/0x5c [igb] [<ffffffffa037d229>] igb_clear_interrupt_scheme+0x26/0x2d [igb] [<ffffffffa0384268>] igb_request_irq+0x73/0x297 [igb] [<ffffffffa0384554>] __igb_open+0xc8/0x223 [igb] [<ffffffffa0384815>] igb_open+0x13/0x15 [igb] [<ffffffff8144592f>] __dev_open+0xbf/0x120 [<ffffffff81443e51>] __dev_change_flags+0xa1/0x180 [<ffffffff81445828>] dev_change_flags+0x28/0x70 [<ffffffff814af537>] devinet_ioctl+0x5b7/0x620 [<ffffffff814b01c8>] inet_ioctl+0x88/0xa0 [<ffffffff8142e8a0>] sock_do_ioctl+0x30/0x70 [<ffffffff8142ecf2>] sock_ioctl+0x72/0x270 [<ffffffff8118062c>] do_vfs_ioctl+0x8c/0x340 [<ffffffff81180981>] sys_ioctl+0xa1/0xb0 [<ffffffff815161a9>] system_call_fastpath+0x16/0x1b Code: 48 89 df e8 1f 40 ed ff 4d 39 e6 49 8b 45 10 75 b6 48 83 c4 18 5b 41 5c 41 5d 41 5e 41 5f c9 c3 48 8b 7b 20 e8 3e 91 db ff eb ae <0f> 0b eb fe 0f 1f 84 00 00 00 00 00 55 48 89 e5 0f 1f 44 00 00 RIP [<ffffffff8128e144>] free_msi_irqs+0x124/0x130 RSP <ffff880037503bd8> Signed-off-by: Stefan Assmann <[email protected]> Tested-by: Aaron Brown <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
* igb: remove duplicate code for fallback interrupt initializationStefan Assmann2012-12-071-15/+14
| | | | | | | | | | | | | Given a small change to igb_init_interrupt_scheme() the function fits igb_request_irq() for MSI/legacy interrupts initialization as well, instead of duplicating most of its code there. Also adding a missing igb_configure() to igb_request_irq() for MSI fallback to work properly. Signed-off-by: Stefan Assmann <[email protected]> Tested-by: Aaron Brown <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
* net/intel: remove __dev* attributesBill Pemberton2012-12-031-6/+6
| | | | | | | | | | | | | | | | | | | | | | CONFIG_HOTPLUG is going away as an option. As result the __dev* markings will be going away. Remove use of __devinit, __devexit_p, __devinitdata, __devinitconst, and __devexit. Signed-off-by: Bill Pemberton <[email protected]> Cc: Jeff Kirsher <[email protected]> Cc: Jesse Brandeburg <[email protected]> Cc: Bruce Allan <[email protected]> Cc: Carolyn Wyborny <[email protected]> Cc: Don Skidmore <[email protected]> Cc: Greg Rose <[email protected]> Cc: Peter P Waskiewicz Jr <[email protected]> Cc: Alex Duyck <[email protected]> Cc: John Ronciak <[email protected]> Cc: Tushar Dave <[email protected]> Cc: [email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
* igb: Use a 32-bit mask when calculating the flow control watermarksMatthew Vick2012-11-281-3/+2
| | | | | | | | | | For some devices, the result of the flow control high watermark gets truncated when programming it into the registers because of the mask used. Switch the mask to 32-bit to prevent this from happening. Signed-off-by: Matthew Vick <[email protected]> Tested-by: Aaron Brown <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
* igb: Do not parse past IP header on fragments beyond the firstAlexander Duyck2012-11-221-4/+7
| | | | | | | | | | | | This change makes it so that only the first fragment in a series of fragments will have the L4 header pulled. Previously we were always pulling the L4 header as well and in the case of UDP this can harm performance since only the first fragment will have the header, the rest just contain data which should be left in the paged portion of the packet. Signed-off-by: Alexander Duyck <[email protected]> Tested-by: Aaron Brown <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
* igb: No longer rely on APME to determine WoL settingsMatthew Vick2012-11-221-14/+26
| | | | | | | | | | | | Historically, we've been using the APME bit to determine whether a device supports wake on a given port or not. However, this bit specifies the default wake setting, rather than the wake support. Change the behavior so that we use a flag to keep the capabilities separate from the enablement while meeting customer requirements. Signed-off-by: Matthew Vick <[email protected]> Tested-by: Aaron Brown <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
* igb: Improve performance and reduce size of igb_tx_mapAlexander Duyck2012-11-131-25/+22
| | | | | | | | | | | | | | This change is meant to both improve the performance and reduce the size of igb_tx_map. To do this I have expanded the work done in the main loop by pushing first into tx_buffer. This allows us to pull in the dma_mapping_error check, the tx_buffer value assignment, and the initial DMA value assignment to the Tx descriptor. The net result is that the function reduces in size by a little over a 100 bytes and is about 1% or 2% faster. Signed-off-by: Alexander Duyck <[email protected]> Tested-by: Aaron Brown <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]> Signed-off-by: David S. Miller <[email protected]>
* igb: Update igb Tx flags to improve code efficiencyAlexander Duyck2012-11-131-28/+33
| | | | | | | | | | | | | | | | This change is meant to improve the efficiency of the Tx flags in igb by aligning them with the values that will later be written into either the cmd_type or olinfo. By doing this we are able to reduce most of these functions to either just a simple shift followed by an or in the case of cmd_type, or an and followed by an or in the case of olinfo. In order to avoid type conversion errors I also adjusted the locations where we were switching between CPU and little endian. Signed-off-by: Alexander Duyck <[email protected]> Tested-by: Aaron Brown <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]> Signed-off-by: David S. Miller <[email protected]>
* igb: Make TSO check for CHECKSUM_PARTIAL to avoid skb_is_gso checkAlexander Duyck2012-11-131-0/+3
| | | | | | | | | | | | This change is meant to reduce the overhead for workloads that are not using either TSO or checksum offloads. Most of the time the compiler should jump ahead after failing this check to the VLAN check since in the igb_tx_csum call we start with that check as well. Signed-off-by: Alexander Duyck <[email protected]> Tested-by: Aaron Brown <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]> Signed-off-by: David S. Miller <[email protected]>
* igb: Support for modifying UDP RSS flow hashingAkeem G. Abodunrin2012-11-131-5/+8
| | | | | | | | | | | This patch provides ability to enable or disable UDP RSS hashing. It gives users option of generating RSS hash based on the UDP source and destination ports numbers. Currently, UDP flow hash is always disabled in igb-driver. Signed-off-by: Akeem G Abodunrin <[email protected]> Tested-by: Aaron Brown <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]> Signed-off-by: David S. Miller <[email protected]>
* ptp: Enable clock drivers along with associated net/PHY driversBen Hutchings2012-11-011-28/+0
| | | | | | | | | | | | | | | | Where a PTP clock driver is associated with a net or PHY driver, it should be enabled automatically whenever that driver is enabled. Therefore: - Make PTP clock drivers select rather than depending on PTP_1588_CLOCK - Remove separate boolean options for PTP clock drivers that are built as part of net driver modules. (This also fixes cases where the PTP subsystem is wrongly forced to be built-in.) - Set 'default y' for PTP clock drivers that depend on specific net drivers but are built separately Signed-off-by: Ben Hutchings <[email protected]> Signed-off-by: David S. Miller <[email protected]>
* igb: Update firmware version info for ethtool output.Carolyn Wyborny2012-10-301-47/+23
| | | | | | | | | | There are multiple places in our device nvm where the version is stored. This update fixes some output errors with some types of images and refactors the way the version data is gathered and stored for ethtool output. Signed-off-by: Carolyn Wyborny <[email protected]> Tested-by: Aaron Brown <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
* igb: Update versionCarolyn Wyborny2012-10-231-1/+1
| | | | | | | | This patch updates the igb driver version to 4.0.17. Signed-off-by: Carolyn Wyborny <[email protected]> Tested-by: Aaron Brown <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
* igb: Split igb_update_dca into separate Tx and Rx functionsAlexander Duyck2012-10-191-31/+49
| | | | | | | | | | | | This change makes it so that igb_update_dca is broken into two halves, one for Rx and one for Tx. The advantage to this is primarily readability. In addition I am enabling relaxed ordering for reads from hardware since this is supported on all of the igb parts. Signed-off-by: Alexander Duyck <[email protected]> Tested-by: Aaron Brown <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
* igb: Move the calls to set the Tx and Rx queues into igb_openAlexander Duyck2012-10-191-13/+18
| | | | | | | | | | | | | | | | | This change helps to address locking issues seen with netif_set_real_num_tx_queues and netif_set_real_num_rx_queues when used in the igb_set_interrupt_capability function. To resolve these locking issues I have moved the two function calls into __igb_open so that they can be called while the RTNL lock is held. An added advantage to this is that the number of queues is not updated until the last possible moment so if there are any issues in allocating MSI-X interrupts or resources for the rings we have time to change the values prior to updating the netdev. Signed-off-by: Alexander Duyck <[email protected]> Tested-by: Aaron Brown <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
* igb: Combine q_vector and ring allocation into a single functionAlexander Duyck2012-10-191-182/+193
| | | | | | | | | | This change combines the the allocation of q_vectors and rings into a single function. The advantage of this is that we are guaranteed we will avoid overlap in the L1 cache sets. Signed-off-by: Alexander Duyck <[email protected]> Tested-by: Aaron Brown <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
* igb: Lock buffer size at 2K even on systems with larger pagesAlexander Duyck2012-10-191-10/+17
| | | | | | | | | | This change locks us in at 2K buffers even on a system that supports larger frames. The reason for this change is to make better use of pages and to reduce the overall truesize of frames generated by igb. Signed-off-by: Alexander Duyck <[email protected]> Tested-by: Aaron Brown <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
* igb: Move rx_buffer related code in Rx cleanup path into separate functionAlexander Duyck2012-10-191-86/+120
| | | | | | | | | | In order to try and isolate things a bit further I am moving the code related to retrieving data from the rx_buffer_info structure into a separate function. Signed-off-by: Alexander Duyck <[email protected]> Tested-by: Aaron Brown <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
* igb: Map entire page and sync half instead of mapping and unmapping half pagesAlexander Duyck2012-10-191-43/+166
| | | | | | | | | | This change makes it so that we map the entire page and just sync half of it for the device at a time. The advantage to this approach is that we can avoid the locking on map/unmap seen in many IOMMU implementations. Signed-off-by: Alexander Duyck <[email protected]> Tested-by: Aaron Brown <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
* igb: Combine post-processing of skb into a single functionAlexander Duyck2012-10-191-25/+44
| | | | | | | | | | This change is meant to just clean-up a number of function calls that were made at the end of the Rx clean-up path by combining them into a single function call. Signed-off-by: Alexander Duyck <[email protected]> Tested-by: Aaron Brown <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
* igb: Do not use header split, instead receive all frames into a single bufferAlexander Duyck2012-10-191-133/+287
| | | | | | | | | | | | This change makes it so that we no longer use header split. The idea is to reduce partial cache line writes by hardware when handling frames larger then header size. We can compensate for the extra overhead of having to memcpy the header buffer by avoiding the cache misses seen by leaving an full skb allocated and sitting on the ring. Signed-off-by: Alexander Duyck <[email protected]> Tested-by: Aaron Brown <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
* igb: Correcting and improving small packet check and paddingTushar Dave2012-10-191-2/+3
| | | | | | | | | | | Current implementation mess up the tail pointer. This patch sets skb->tail correctly. Also, the small packet check and padding is optimized by using unlikely and calling skb_pad directly. Signed-off-by: Tushar Dave <[email protected]> Tested-by: Jeff Pieper <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds2012-10-021-513/+198
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull networking changes from David Miller: 1) GRE now works over ipv6, from Dmitry Kozlov. 2) Make SCTP more network namespace aware, from Eric Biederman. 3) TEAM driver now works with non-ethernet devices, from Jiri Pirko. 4) Make openvswitch network namespace aware, from Pravin B Shelar. 5) IPV6 NAT implementation, from Patrick McHardy. 6) Server side support for TCP Fast Open, from Jerry Chu and others. 7) Packet BPF filter supports MOD and XOR, from Eric Dumazet and Daniel Borkmann. 8) Increate the loopback default MTU to 64K, from Eric Dumazet. 9) Use a per-task rather than per-socket page fragment allocator for outgoing networking traffic. This benefits processes that have very many mostly idle sockets, which is quite common. From Eric Dumazet. 10) Use up to 32K for page fragment allocations, with fallbacks to smaller sizes when higher order page allocations fail. Benefits are a) less segments for driver to process b) less calls to page allocator c) less waste of space. From Eric Dumazet. 11) Allow GRO to be used on GRE tunnels, from Eric Dumazet. 12) VXLAN device driver, one way to handle VLAN issues such as the limitation of 4096 VLAN IDs yet still have some level of isolation. From Stephen Hemminger. 13) As usual there is a large boatload of driver changes, with the scale perhaps tilted towards the wireless side this time around. Fix up various fairly trivial conflicts, mostly caused by the user namespace changes. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1012 commits) hyperv: Add buffer for extended info after the RNDIS response message. hyperv: Report actual status in receive completion packet hyperv: Remove extra allocated space for recv_pkt_list elements hyperv: Fix page buffer handling in rndis_filter_send_request() hyperv: Fix the missing return value in rndis_filter_set_packet_filter() hyperv: Fix the max_xfer_size in RNDIS initialization vxlan: put UDP socket in correct namespace vxlan: Depend on CONFIG_INET sfc: Fix the reported priorities of different filter types sfc: Remove EFX_FILTER_FLAG_RX_OVERRIDE_IP sfc: Fix loopback self-test with separate_tx_channels=1 sfc: Fix MCDI structure field lookup sfc: Add parentheses around use of bitfield macro arguments sfc: Fix null function pointer in efx_sriov_channel_type vxlan: virtual extensible lan igmp: export symbol ip_mc_leave_group netlink: add attributes to fdb interface tg3: unconditionally select HWMON support when tg3 is enabled. Revert "net: ti cpsw ethernet: allow reading phy interface mode from DT" gre: fix sparse warning ...
| * igb: Use dma_unmap_addr and dma_unmap_len definesAlexander Duyck2012-09-221-32/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This change is meant to improve performance on systems that do not require the DMA unmap calls. On those systems we do not need to make use of the unmap address for Tx or the unmap length so we can drop both thereby reducing the size of the Tx buffer info structure. In addition I have changed the logic to check for unmap length instead of unmap address when checking to see if a buffer needs to be unmapped from DMA use. The reasons for this change is that on some platforms it is possible to receive a valid DMA address of 0 from an IOMMU. Signed-off-by: Alexander Duyck <[email protected]> Tested-by: Aaron Brown <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
| * igb: Simplify how we populate the RSS keyAlexander Duyck2012-09-221-12/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of storing the RSS key as a character array we can simplify the configuration by making it a u32 array. This allows us to just write one value per register without any unnecessary operations to construct the value. This change will produce the same exact key, the only difference is that I translated the u8 array to a u32 array which will be correctly ordered on writes to hardware by the cpu_to_le32 operations that are built into the writel calls. Signed-off-by: Alexander Duyck <[email protected]> Tested-by: Aaron Brown <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
| * igb: Change how we populate the RSS indirection tableAlexander Duyck2012-09-221-29/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | This patch cleans up our RSS indirection table configuration so that we generate the same table regardless of CPU endianness. In addition it changes the table setup so that instead of doing a modulo based setup it is instead a divisor based setup. The advantage to this is that we should be able to take the Rx hash and compute the Rx queue with very little CPU overhead if needed. Signed-off-by: Alexander Duyck <[email protected]> Tested-by: Aaron Brown <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
| * igb: Change Tx cleanup loop to do/while instead of forAlexander Duyck2012-09-221-12/+16
| | | | | | | | | | | | | | | | | | | | | | This change makes it so that Tx cleanup is done in a do/while loop instead of a for loop. The main motivation behind this is the fact that we should never be invoked with a budget less than 1 so we can skip checking the budget before processing the first descriptor. Signed-off-by: Alexander Duyck <[email protected]> Tested-by: Aaron Brown <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
| * igb: Remove logic that was doing NUMA pseudo-aware allocationsAlexander Duyck2012-09-221-82/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | This change removes the code that was doing the NUMA allocations for the q_vectors, rings, and ring resources. The problem is the logic used assumed that the NUMA nodes were always interleved and that is not always the case. At some point I hope to add this functionality back in a more controlled manner in the future. Signed-off-by: Alexander Duyck <[email protected]> Tested-by: Aaron Brown <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
| * igb: Fix stats output on i210/i211 parts.Carolyn Wyborny2012-09-221-1/+5
| | | | | | | | | | | | | | | | | | | | Due to a hardware issue, on i210 and i211 parts, the TNCRS statistic provides an invalid value. This patch changes the update stats function to increment the stat only for non-i210/i211 parts. Signed-off-by: Carolyn Wyborny <[email protected]> Tested-by: Jeff Pieper <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
| * igb: Change how we check for pre-existing and assigned VFsStefan Assmann2012-09-221-82/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Adapt the pre-existing and assigned VFs code to the ixgbe way introduced in commit 9297127b9cdd8d30c829ef5fd28b7cc0323a7bcd. Instead of searching the enabled VFs we use pci_num_vf to determine enabled VFs. By comparing to which PF an assigned VF is owned it's possible to decide whether to leave it enabled or not. Signed-off-by: Stefan Assmann <[email protected]> Acked-by: Greg Rose <[email protected]> Tested-by: Robert Garrett <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
| * igb: Remove artificial restriction on RQDPC stat readingAlexander Duyck2012-09-201-3/+5
| | | | | | | | | | | | | | | | | | | | | | For some reason the reading of the RQDPC register was being artificially limited to 4K. Instead of limiting the value we should read the value and add the full amount. Otherwise this can lead to a misleading number of dropped packets when the actual value is in fact much higher. Signed-off-by: Alexander Duyck <[email protected]> Tested-by: Jeff Pieper <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]>
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