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path: root/drivers/net/ethernet/intel/igb/igb.h
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2014-04-24igb: Cleanups to change comment style on license headersCarolyn Wyborny
This patch fixes WARNING:NETWORKING_BLOCK_COMMENT_STYLE from checkpatch file check. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-04-23igb: Cleanups to fix incorrect indentationCarolyn Wyborny
This patch fixes WARNING:LEADING_SPACE, WARNING:SPACING, ERROR:SPACING, WARNING:SPACE_BEFORE_TAB and ERROR_CODE_INDENT from checkpatch file check. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-04-11igb: fix last_rx_timestamp usageJakub Kicinski
last_rx_timestamp should be updated only when rx time stamp is read. Also it's only used with NICs that have per-interface time stamping resources so it can be moved to adapter structure and set in igb_ptp_rx_rgtstamp(). Signed-off-by: Jakub Kicinski <kubakici@wp.pl> Acked-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-03-28igb: fix race conditions on queuing skb for HW time stampJakub Kicinski
igb has a single set of TX time stamping resources per NIC. Use a simple bit lock to avoid race conditions and leaking skbs when multiple TX rings try to claim time stamping. Signed-off-by: Jakub Kicinski <kubakici@wp.pl> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-03-21igb: implement SIOCGHWTSTAMP ioctlJacob Keller
This patch adds support for the SIOCGHWTSTAMP ioctl which enables user processes to read the current hwtstamp_config settings non-destructively. Previously a process had to be privileged and could only set values, it couldn't return what is currently set without possibly overwriting the value. This patch adds support for this new operation into igb by keeping a shadow copy of the config in the adapter structure, which is returned upon request. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Acked-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-03-12igb: Fix for devices using ethtool for EEE settingsCarolyn Wyborny
This patch fixes a problem where using ethtool for EEE setting was not working correctly. This patch also fixes a problem where the function that checks for EEE status on i354 devices was not being called and was causing warnings with static analysis tools. Reported-by: Rashika Kheria <rashika.kheria@gmail.com> Reported-by: Josh Triplett <josh@joshtriplett.org> Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-02-26igb: Update license text to remove FSF address and update copyright.Carolyn Wyborny
This patch updates the license text to remove address of Free Software Foundation and refer users to www.gnu.org instead. This patch also updates the copyright dates in appropriate igb driver files. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Signed-off-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-26igb: make local functions static and remove dead codeJeff Kirsher
Based on Stephen Hemminger's original patch. Make local functions static, and remove unused functions. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-17igb: Change to use statically allocated array for MSIx entriesCarolyn Wyborny
This patch changes how the driver initializes MSIx and checks for MSIx configuration. This change makes it easier to reconfigure the device when queue changes happen at runtime using ethtool's set_channels feature. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-12-10igb: Convert to use devm_hwmon_device_register_with_groupsGuenter Roeck
Simplify the code. Attach hwmon sysfs attributes to hwmon device instead of pci device. Avoid race conditions caused by attributes being created after registration and provide mandatory 'name' attribute by using new hwmon API. Other cleanup: Instead of allocating memory for hwmon attributes, move attributes and all other hwmon related data into struct hwmon_buff and allocate the entire structure using devm_kzalloc. Check return value from calls to igb_add_hwmon_attr() one by one instead of logically combining them all together. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-12-10igb: Add new feature Media Auto Sense for 82580 devices onlyCarolyn Wyborny
This patch adds support for the hardware feature Media Auto Sense. This feature requires a custom EEPROM image provided by our customer support team. The feature allows hardware designed with dual PHY's, fiber and copper to be used with either media without additional EEPROM changes. Fiber is preferred and driver will swap and configure for fiber media if sensed by the device at any time. Device will swap back to copper if it is the only media detected. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-12-10igb: Add media switching feature for i354 PHY'sCarolyn Wyborny
This patch adds a new feature which is supported in some PHY's on some i354 devices. This feature is Auto Media Detect and allows which ever media is detected first by the PHY to be the media used and configured by the device. This is a media swapping feature that is wholly contained in the Marvell PHY. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-10-01igb: Add ethtool support to configure number of channelsLaura Mihaela Vasilescu
This patch adds the ethtool callbacks necessary to configure the number of RSS queues. The maximum number of queues is in accordance with the datasheets. Signed-off-by: Laura Mihaela Vasilescu <laura.vasilescu@rosedu.org> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-24intel: Remove extern from function prototypesJoe Perches
There are a mix of function prototypes with and without extern in the kernel sources. Standardize on not using extern for function prototypes. Function prototypes don't need to be written with extern. extern is assumed by the compiler. Its use is as unnecessary as using auto to declare automatic/local variables in a block. Signed-off-by: Joe Perches <joe@perches.com>
2013-09-04igb: Implementation of 1-sec delay for i210 devicesAkeem G Abodunrin
This patch adds 1 sec delay mechanism to i210 device family, in order to avoid erroneous link issue with the link partner. Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-08-22igb: Expose RSS indirection table for ethtoolLaura Mihaela Vasilescu
This patch adds the ethtool callbacks necessary to change the RETA indirection table from userspace. In order to achieve this, we add the indirection table field (rss_indir_tbl) in the board specific data structure (struct igb_adapter) to preserve the values across hardware resets. The indirection table must be initialized with default values in the following cases: * at module init time * when the number of RX queues changes. For this reason we add a new field (rss_indir_tbl_init) in igb_adapter that keeps track of the number of RX queues. Whenever the number of RX queues changes, the rss_indir_tbl is modified and initialized with default values. The rss_indir_tbl_init is updated accordingly. CC: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Laura Mihaela Vasilescu <laura.vasilescu@rosedu.org> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-08-22igb: Add macro for size of RETA indirection tableLaura Mihaela Vasilescu
RETA indirection table is used to assign the received data to a CPU in order to maintain an efficient distribution of network receive processing across multiple CPUs. This patch removes the hard-coded value for the size of the indirection table and defines a new macro. Signed-off-by: Laura Mihaela Vasilescu <laura.vasilescu@rosedu.org> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-05-21igb: Removed unused i2c functionAkeem G. Abodunrin
This patch removes unused i2c function definition. Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-05-21igb: Add update to last_rx_timestamp in Rx ringsMatthew Vick
In order to support a more accurate check for a PTP Rx hang where the device can no longer timestamp received packets, we need to update, per ring, when the last Rx timestamp was. Because of how the PTP Rx hang logic works, the current logic is valid, but properly updating the ring variable increases the accuracy of the check. Signed-off-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-04-22Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
Conflicts: drivers/net/ethernet/emulex/benet/be_main.c drivers/net/ethernet/intel/igb/igb_main.c drivers/net/wireless/brcm80211/brcmsmac/mac80211_if.c include/net/scm.h net/batman-adv/routing.c net/ipv4/tcp_input.c The e{uid,gid} --> {uid,gid} credentials fix conflicted with the cleanup in net-next to now pass cred structs around. The be2net driver had a bug fix in 'net' that overlapped with the VLAN interface changes by Patrick McHardy in net-next. An IGB conflict existed because in 'net' the build_skb() support was reverted, and in 'net-next' there was a comment style fix within that code. Several batman-adv conflicts were resolved by making sure that all calls to batadv_is_my_mac() are changed to have a new bat_priv first argument. Eric Dumazet's TS ECR fix in TCP in 'net' conflicted with the F-RTO rewrite in 'net-next', mostly overlapping changes. Thanks to Stephen Rothwell and Antonio Quartulli for help with several of these merge resolutions. Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-18igb: Add support for i354 devicesCarolyn Wyborny
This patch adds base support for new i354 devices. Loopback test is unsupported for this release. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-04-18igb: add support for spoofchk configLior Levy
Add support for spoofchk configuration per VF via iproute2 tool. Signed-off-by: Lior Levy <lior.levy@intel.com> Tested-by: Sibai Li <sibai.li@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-04-18igb: Fix code comments and whitespaceJeff Kirsher
Aligns the multi-line code comments with the desired style for the networking tree. Also cleaned up whitespace issues found during the cleanup of code comments (i.e. remove unnecessary blank lines, use tabs where possible, properly wrap lines and keep strings on a single line) Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2013-04-18igb: Support to read and export SFF-8472/8079 dataAkeem G. Abodunrin
This patch adds support to read and export SFF-8472/8079 (SFP data) over i2c, through Ethtool. v2: Changed implementation to accommodate any offset within SFF module length boundary. Reported-by: Aurélien Guillaume <footplus@gmail.com> CC: Aurélien Guillaume <footplus@gmail.com> CC: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-04-18igb: Revert support for build_skb in igbAlexander Duyck
This patch actually reverts: igb: Support using build_skb in the case that jumbo frames are disabled The reason for reverting this patch is that it can lead to data corruption. The following flow was pointed out by Ben Hutchings: 1. skb is forwarded to another device 2. Packet headers are modified and it's put into a queue 3. Second packet is received into the other half of this page 4. Page cannot be reused, so is DMA-unmapped 5. The DMA mapping was non-coherent, so unmap copies or invalidates cache The headers added in step 2 get trashed in step 5. Reported-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-05igb: Fix for lockdep issue in igb_get_i2c_clientCarolyn Wyborny
This patch fixes a lockdep warning in igb_get_i2c_client by refactoring the initialization and usage of the i2c_client completely. There is no on the fly allocation of the single client needed today. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-02-15igb: Update igb to use a path similar to ixgbe to determine when to stop TxAlexander Duyck
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 <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-02-15igb: Support using build_skb in the case that jumbo frames are disabledAlexander Duyck
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 <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-01-19igb: Copyright string update to year 2013Akeem G. Abodunrin
This patch updates Copyright year to 2013 v2: Changed Copyright year on Makefile Signed-off-by: Akeem G. Abodunrin <akeem.g.abodunrin@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-01-18igb: Add mechanism for detecting latched hardware Rx timestampMatthew Vick
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 <richardcochran@gmail.com> Signed-off-by: Matthew Vick <matthew.vick@intel.com> Acked-by: Richard Cochran <richardcochran@gmail.com> Acked-by: Jacob Keller <Jacob.e.keller@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-01-18igb: Add timeout for PTP Tx work itemMatthew Vick
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 <richardcochran@gmail.com> Signed-off-by: Matthew Vick <matthew.vick@intel.com> Acked-by: Jacob Keller <Jacob.e.keller@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-01-18igb: Enable hwmon data output for thermal sensors via I2C.Carolyn Wyborny
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 <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-01-18igb: Add i2c interface to igb.Carolyn Wyborny
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 <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-12-01igb: Unset sigdetect for SERDES loopback on 82580 and i350Carolyn Wyborny
This patch unsets the sigdetect bit for SERDES loopback tests on 82580 and i350 parts. The loopback test can fail on these parts without this setting. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-11-22igb: No longer rely on APME to determine WoL settingsMatthew Vick
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 <matthew.vick@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-11-13igb: Update igb Tx flags to improve code efficiencyAlexander Duyck
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 <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-13igb: Support for modifying UDP RSS flow hashingAkeem G. Abodunrin
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 <akeem.g.abodunrin@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-01ptp: Enable clock drivers along with associated net/PHY driversBen Hutchings
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 <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-19igb: Combine q_vector and ring allocation into a single functionAlexander Duyck
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 <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-10-19igb: Lock buffer size at 2K even on systems with larger pagesAlexander Duyck
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 <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-10-19igb: Map entire page and sync half instead of mapping and unmapping half pagesAlexander Duyck
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 <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-10-19igb: Do not use header split, instead receive all frames into a single bufferAlexander Duyck
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 <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-10-19igb: Split Rx timestamping into two separate functionsAlexander Duyck
In order to support page based receive we will need to split up the two different types of timestamping into two separate functions. The first one will handle legacy timestamps with the value in the register, and the new one will handle timestamps in the Rx buffer itself. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Acked-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-22igb: Use dma_unmap_addr and dma_unmap_len definesAlexander Duyck
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 <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-22igb: Remove logic that was doing NUMA pseudo-aware allocationsAlexander Duyck
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 <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-22igb: Change how we check for pre-existing and assigned VFsStefan Assmann
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 <sassmann@kpanic.de> Acked-by: Greg Rose <gregory.v.rose@intel.com> Tested-by: Robert Garrett <robertx.e.garrett@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-17igb: Prevent dropped Tx timestamps via work items and interrupts.Matthew Vick
In rare circumstances, it's possible a descriptor writeback will occur before a timestamped Tx packet will go out on the wire, leading to the driver believing the hardware failed to timestamp the packet. Schedule a work item for 82576 and use the available time sync interrupt registers on 82580 and above to account for this. Cc: Richard Cochran <richardcochran@gmail.com> Signed-off-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-17igb: Update PTP function names/variables and locations.Matthew Vick
Where possible, move PTP-related functions into igb_ptp.c and update the names of functions and variables to match the established coding style in the files and specify that they are PTP-specific. Cc: Richard Cochran <richardcochran@gmail.com> Signed-off-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-17igb: Tidy up wrapping for CONFIG_IGB_PTP.Matthew Vick
For users without CONFIG_IGB_PTP=y, we should not be compiling any PTP code into the driver. Tidy up the wrapping in igb to support this. Cc: Richard Cochran <richardcochran@gmail.com> Signed-off-by: Matthew Vick <matthew.vick@intel.com> Acked-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-09-04igb: reduce Rx header sizeEric Dumazet
Reduce skb truesize by 256 bytes. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>