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path: root/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb_nl.c
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2018-04-27net: intel: Cleanup the copyright/license headersJeff Kirsher
After many years of having a ~30 line copyright and license header to our source files, we are finally able to reduce that to one line with the advent of the SPDX identifier. Also caught a few files missing the SPDX license identifier, so fixed them up. Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Acked-by: Shannon Nelson <shannon.nelson@oracle.com> Acked-by: Richard Cochran <richardcochran@gmail.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-12ixgbe: Don't assume dev->num_tc is equal to hardware TC configAlexander Duyck
The code throughout ixgbe was assuming that dev->num_tc was populated and configured with the driver, when in fact this can be configured via mqprio without any hardware coordination other than restricting us to the real number of Tx queues we advertise. Instead of handling things this way we need to keep a local copy of the number of TCs in use so that we don't accidentally pull in the TC configuration from mqprio when it is configured in software mode. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2017-02-16ixgbe: prefix Data Center Bridge ops structStephen Hemminger
Since dcbnl_ops is global, it should be prefixed by ixgbe_ Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-25ixgbe: use BIT() macroJacob Keller
Several areas of ixgbe were written before widespread usage of the BIT(n) macro. With the impending release of GCC 6 and its associated new warnings, some usages such as (1 << 31) have been noted within the ixgbe driver source. Fix these wholesale and prevent future issues by simply using BIT macro instead of hand coded bit shifts. Also fix a few shifts that are shifting values into place by using the 'u' prefix to indicate unsigned. It doesn't strictly matter in these cases because we're not shifting by too large a value, but these are all unsigned values and should be indicated as such. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-11-11ixgbe: Add new support for X550 MAC'sDon Skidmore
This patch will add in the new MAC defines and fit it into the switch cases throughout the driver. New functionality and enablement support will be added in following patches. Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-07-25ixgbe: Make return values more directMark Rustad
Make return values more direct, eliminating some gotos and otherwise unneeded conditionals. This also eliminates some local variables. Also a few minor cleanups in affected code so checkpatch won't complain. Signed-off-by: Mark Rustad <mark.d.rustad@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-07-20ixgbe: remove unnecessary break after returnFabian Frederick
Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-17Update setapp/getapp prototypes in dcbnl_rtnl_ops to return int instead of u8Anish Bhatt
v2: fixed issue with checking return of dcbnl_rtnl_ops->getapp() Signed-off-by: Anish Bhatt <anish@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-23ixgbe: clean up checkpatch warnings about CODE_INDENT and LEADING_SPACEJacob Keller
The contents of this patch were originally generated by "scripts/checkpatch.pl --fix-inplace --types CODE_INDENT,LEADING_SPACE drivers/net/ethernet/ixgbe/*.[ch]", and then hand verified for consistency. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-05-21IXGBE: Set the SW prio_tc values at initialization to the HW setting.Amir Hanania
Set the SW prio_tc values at initialization to the HW setting. Setting the SW prio_tc default values to be the HW setting by reading the rtrup2tc register. For any TC change we need to reset the device. This will remove the need to reset the device at the first time we call ixgbe_dcbnl_ieee_setets. Signed-off-by: Amir Hanania <amir.hanania@intel.com> Tested-by: Jack Morgan<jack.morgan@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-02-05ixgbe: update date to 2013Don Skidmore
Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-02-05ixgbe: fix return values and memcpy parameters to eliminate Smatch warningsJosh Hay
This patch removes the rval variable returns from function and replaces them with direct returns in ixgbe_dcbnl_getnumtcs. It also changes how ixgbe_gstrings_test is copied into data with memcpy in ixgbe_get_strings because "*ixgbe_gstrings_test too small (32 vs 160)". Signed-off-by: Josh Hay <joshua.a.hay@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-01-31ixgbe: Reset the NIC if up2tc has changedAmir Hanania
Check for up2tc change and call ixgbe_dcbnl_devreset() if the mapping has changed but the number of TC's in use has not changed. Signed-off-by: Amir Hanania <amir.hanania@intel.com> Tested-by: Jack Morgan <jack.morgan@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-01-19ixgbe: SR-IOV: dynamic IEEE DCBx default priority changesJohn Fastabend
IEEE DCBx has a mechanism to change the default user priority. In the normal case the OS can handle this via cgroups, iptables, socket, options etc. With SR-IOV and direct assigned VF devices the default priority needs to be set by the PF device so the inserted VLAN tag is correct. Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Tested-by: Marcus Dennis <marcusx.e.dennis@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-07-14ixgbe: Populate the prio_tc_map in ixgbe_setup_tcAlexander Duyck
There were cases where the prio_tc_map was not populated when we were calling open. This will result in us incorrectly configuring the traffic classes when DCB is enabled. In order to correct this I have updated the code so that we now populate the values prior to allocating the q_vectors and calling ixgbe_open. Cc: John Fastabend <john.r.fastabend@intel.com> Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-05-09ixgbe: Set Drop_EN bit when multiple Rx queues are present w/o flow controlAlexander Duyck
The drop enable bit can be used to improve the performance of the adapter in the case of multiple queues being present. This performance gain is due to the fact that some slower CPUs can cause the FIFO to backfill preventing faster CPUs from receiving additional work. By setting the drop enable bit we prevent this and instead just drop the packets that would have been bound for the slower CPU. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-05-09ixgbe: Clean up priority based flow controlAlexander Duyck
This change cleans up the logic in the priority based flow control configuration routines. Both the 82599 and 82598 based routines perform similar functions however they are both arranged completely differently. This patch goes over both of them to clean up the code. In addition I am dropping the ixgbe_fc_pfc flow control mode and instead just replacing it with checks for if priority flow control is enabled. This allows us to maintain some of the link flow control information which allows for an easier transition between link and priority flow control. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-05-07Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
Conflicts: drivers/net/ethernet/intel/e1000e/param.c drivers/net/wireless/iwlwifi/iwl-agn-rx.c drivers/net/wireless/iwlwifi/iwl-trans-pcie-rx.c drivers/net/wireless/iwlwifi/iwl-trans.h Resolved the iwlwifi conflict with mainline using 3-way diff posted by John Linville and Stephen Rothwell. In 'net' we added a bug fix to make iwlwifi report a more accurate skb->truesize but this conflicted with RX path changes that happened meanwhile in net-next. In e1000e a conflict arose in the validation code for settings of adapter->itr. 'net-next' had more sophisticated logic so that logic was used. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-05ixgbe: dcb: IEEE PFC stats and reset logic incorrectJohn Fastabend
PFC stats are only tabulated when PFC is enabled. However in IEEE mode the ieee_pfc pfc_tc bits were not checked and the calculation was aborted. This results in statistics not being reported through ethtool and possible a false Tx hang occurring when receiving pause frames. Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-05-03ixgbe: dcb: BIT_APP_UPCHG not set by ixgbe_copy_dcb_cfg()John Fastabend
After this commit: commit aacc1bea190d731755a65cb8ec31dd756f4e263e Author: Multanen, Eric W <eric.w.multanen@intel.com> Date: Wed Mar 28 07:49:09 2012 +0000 ixgbe: driver fix for link flap The BIT_APP_UPCHG bit is no longer set when ixgbe_dcbnl_set_all() is called. This results in the FCoE app user priority never getting set and the driver will not configure the tx_rings correctly for FCoE packets which use the SAN MTU and FCoE offloads. We resolve this regression by fixing ixgbe_copy_dcb_cfg() to also check for FCoE application changes. Additionally, we can drop the IEEE variants of get_dcb_app() because this path is never called with the IEEE mode enabled. Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-04-03ixgbe: driver fix for link flapMultanen, Eric W
Fix up code so that changes in DCB settings are detected only when ixgbe_dcbnl_set_all is called. Previously, a series of 'change' commands followed by a call to ixgbe_dcbnl_set_all() would always be handled as a HW change - even if the net change was zero. This patch checks for this case of no actual change and skips going through the HW set process. Without this fix, the link could reset and result in a link flap. The core change in this patch is to check for changes in the ixgbe_copy_dcb_cfg() routine - and return a bitmask of detected changes. The other places where changes were detected previously can be removed. Signed-off-by: Eric Multanen <eric.w.multanen@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-03-02net: dcb: getnumtcs()/setnumtcs() should return an intJohn Fastabend
{g|s}etnumtcs() today returns a u8 that is only used by the DCB code to verify no error occurred. Today the driver implementations return negative error codes which end up being non-zero so the logic works out but triggers some sparse warnings. To fix the sparse warnings convert the return value to an int. CC: Eilon Greenstein <eilong@broadcom.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-03-02ixgbe: dcb: check setup_tc return codesJohn Fastabend
dcb netlink code calls setup_tc to init hardware traffic classes to use for DCB. At some call sites the return values are not checked for errors and in one case may return -EINVAL back to the net/dcbnl.c caller which is expecting a u8. This fixes some smatch hits and although failures are never seen in practive its best to check return codes. Reported-by: Dan Carenter <dan.carpenter@oracle.com> Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-02-09ixgbe: dcb: up2tc mapping lost on disable/enable CEE DCB stateJohn Fastabend
Users expect the up2tc mapping to be maintained across a DCB enable/disable/enable transition. And since we maintain all the other DCB attributes we should do this for up2tc mappings as well just to be consistent. Also without this we break user space applications that expect this to occur that previously worked. Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Tested-by: Stephen Ko <stephen.s.ko@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-02-03ixgbe: update copyright to 2012Don Skidmore
New year so bump the copyright date. Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-12-05ixgbe: DCB: IEEE transitions may fail to reprogram hardware.John Fastabend
Transitioning through an IEEE DCBX version from a CEE DCBX and back (CEE->IEEE->CEE) may leave IEEE attributes programmed in the hardware. DCB uses a bit field in the set routines to determine which attributes PG, PFC, APP need to be reprogrammed. This is needed because user flow allows queueing a series of changes and then reprogramming the hardware with the entire set in one operation. When transitioning from IEEE DCBX mode back into CEE DCBX mode the PG and PFC bits need to be set so the possibly different CEE attributes get programmed into the device. This patch fixes broken logic that was evaluating to 0 and never setting any bits. Further this removes some checks for num_tc in set routines. This logic only worked when the number of traffic classes and user priorities were equal. This is no longer the case for X540 devices. Besides we can trust user input in this case if the device is incorrectly configured the DCB bandwidths will be incorrectly mapped but no OOPs, BUG, or hardware failure will occur. Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-12-05ixgbe: DCBnl set_all, order of operations fixJohn Fastabend
The order of operations is important in DCBnl set_all(). When FCoE is configured it uses the up2tc map to learn which queues to configure the hardware offloads on. Therefore we need to setup the map before configuring FCoE. This is only seen when the both up2tc mappings and APP info are configured simultaneously. Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-11-02ixgbe: DCB, return max for IEEE traffic classesJohn Fastabend
Returning the max traffic classes on get requests simplifies user space configurations because applications will know explicitly how many traffic classes can be used. Typical switch implementations use 2 or 3 traffic classes so this not seen often today. And user space can learn the number of traffic classes by return codes but this allows user space to configure ixgbe correctly at the start. Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-10-12ixgbe: Correct check for change in FCoE priorityMark Rustad
Correct a check for change in FCoE priority when IEEE mode DCB is in use. In IEEE mode a different function has to be used to get the FCoE priority mask. Also, the check for the mask assumed that only one priority was set. In case there should be more than one, check just the bit. These changes help avoid link flapping issues that can come up when IEEE DCB is in use. Signed-off-by: Mark Rustad <mark.d.rustad@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-10-06ixgbe: fixup hard dependencies on supporting 8 traffic classesJohn Fastabend
This patch correctly configures DCB when less than 8 traffic classes are available in hardware. Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-09-23ixgbe: dcb, set priority to traffic class mappingsJohn Fastabend
This patch adds support for configuring the priority to traffic class mapping. Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-09-23ixgbe: DCB, do not call set_state() from IEEE modeJohn Fastabend
The DCB CEE command set_state() will complete successfully but is misleading because it enables IEEE mode. After this patch the command is failed. And IEEE PFC/ETS is managed from ieee paths now instead of using CEE primitives. Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-29ixgbe: consolidate, setup for multiple traffic classesJohn Fastabend
This consolidates setup code for multiple traffic classes in the setup_tc routine. Prep work to allow IEEE DCBX to optimize for number of traffic classes. Also simplifies code paths. Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-19ixgbe: replace reference to CONFIG_FCOE with IXGBE_FCOEAlexander Duyck
CONFIG_FCOE is not the correct define to check since it is possible for it to be CONFIG_FCOE_MODULE, as such the reference to it should be replaced with IXGBE_FCOE. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-10intel: Move the Intel wired LAN driversJeff Kirsher
Moves the Intel wired LAN drivers into drivers/net/ethernet/intel/ and the necessary Kconfig and Makefile changes. Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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