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path: root/drivers/net/ethernet/intel/ice/ice_dcb_lib.c
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2019-09-12ice: Enable DDP package downloadTony Nguyen1-0/+42
Attempt to request an optional device-specific DDP package file (one with the PCIe Device Serial Number in its name so that different DDP package files can be used on different devices). If the optional package file exists, download it to the device. If not, download the default package file. Log an appropriate message based on whether or not a DDP package file exists and the return code from the attempt to download it to the device. If the download fails and there is not already a package file on the device, go into "Safe Mode" where some features are not supported. Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-09-05ice: Allow for delayed LLDP MIB change registrationDave Ertman1-2/+2
Add an additional boolean parameter to the ice_init_dcb function. This boolean controls if the LLDP MIB change events are registered for. Also, add a new function defined ice_cfg_lldp_mib_change. The additional function is necessary to be able to register for LLDP MIB change events after calling ice_init_dcb. The net effect of these two changes is to allow a delayed registration for MIB change events so that the driver is not accepting events before it is ready for them. Signed-off-by: Dave Ertman <david.m.ertman@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-09-05ice: Check for DCB capability before initializing DCBAnirudh Venkataramanan1-3/+0
Check the ICE_FLAG_DCB_CAPABLE before calling ice_init_pf_dcb. Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-09-03ice: Remove enable DCB when SW LLDP is activatedMichal Swiatkowski1-1/+0
Remove code that enables DCB in initialization when SW LLDP is activated. DCB flag is set or reset before in ice_init_pf_dcb based on number of TCs. So there is not need to overwrite it. Setting DCB without checking number of TCs can cause communication problems with other cards. Host card sends packet with VLAN priority tag, but client card doesn't strip this tag and ping doesn't work. Signed-off-by: Michal Swiatkowski <michal.swiatkowski@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-09-03ice: Correctly handle return values for init DCBDave Ertman1-9/+8
In the init path for DCB, the call to ice_init_dcb() can return a non-zero value for either an actual error, or due to the FW lldp engine being stopped. We are currently treating all non-zero values only as an indication that the FW LLDP engine is stopped. Check for an actual error in the DCB init flow. Signed-off-by: Dave Ertman <david.m.ertman@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-09-03ice: Limit Max TCs on devices with more than 4 portsUsha Ketineni1-2/+8
This patch limits the max TCs set by the driver to the value provided by the firmware as per the capabilities of the device. Otherwise, hard coding to 8 TC max would fail the device configurations with more than 4 ports. Signed-off-by: Usha Ketineni <usha.k.ketineni@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-08-26ice: Fix ethtool port and PFC stats for 4x25G cardsUsha Ketineni1-6/+7
This patch fixes the issue where port and PFC statistics counters are incrementing at the wrong port with 4x25G cards. Read the GLPRT port registers using lport parameter instead of pf_id to update the statistics otherwise the pf_ids are flipped for ports 2 and 3 when read from the HW register PF_FUNC_RID and this is expected as per hardware specification. Signed-off-by: Usha Ketineni <usha.k.ketineni@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-08-23ice: Rename ethtool private flag for lldpDave Ertman1-2/+2
The current flag name of "enable-fw-lldp" is a bit cumbersome. Change priv-flag name to "fw-lldp-agent" with a value of on or off. This is more straight-forward in meaning. Signed-off-by: Dave Ertman <david.m.ertman@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-08-23ice: Copy dcbx configuration only if mode is correctMichal Swiatkowski1-2/+4
In rebuild DCB desired_dcbx_cfg was copy to local_dcbx_cfg, but if DCBX mode is IEEE desired_dcbx_cfg is not initialized by DCBX config from FW. Change logic to copy config value only if mode is set to CEE. If driver copy desired_dcbx_cfg to local_dcbx_cfg in IEEE mode there is problem with globr. System is frozen after two or more globr. Signed-off-by: Michal Swiatkowski <michal.swiatkowski@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-08-23ice: Account for all states of FW DCBx and LLDPDave Ertman1-22/+12
Currently, only the DCBx status is taken into account to determine if FW LLDP is possible. But there are NVM version coming out with DCBx enabled, and FW LLDP disabled. This is causing errors where the driver sees that DCBx is not disabled, and then tries to register for LLDP MIB change events, and fails. Change the logic to detect both DCBx and LLDP states in the FW engine. Signed-off-by: Dave Ertman <david.m.ertman@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-08-20ice: Fix kernel hang with DCB reset in CEE modeUsha Ketineni1-61/+88
This patch fixes the set local MIB AQ call failures in the DCB rebuild path by setting the defaults for the ETS recommended DCB configuration. Also, willing bits for the DCB configuration needs to be set correctly. Resets works fine in IEEE mode as the ETS recommended DCB configuration is populated but not in CEE mode. Without this patch, PFR causes the kernel hang in CEE mode. Signed-off-by: Usha Ketineni <usha.k.ketineni@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-05-30ice: Trivial cosmetic changesAnirudh Venkataramanan1-6/+6
This patch mostly capitalizes abbreviations in code comments. Fixed some typos and removed some unnecessary newlines as well. Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-05-30ice: Use continue instead of an else blockAnirudh Venkataramanan1-3/+5
For style consistency, use continue instead of an else block in ice_pf_dcb_recfg. Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-05-30ice: Add switch rules to handle LLDP packetsDave Ertman1-3/+1
Add call to configure dropping egress LLDP packets in ice_vsi_setup and remove the rule in ice_vsi_release. Add calls to add/remove rule to route LLDP packets to default VSI when FW LLDP engine is disabled/enabled and remove rule if applied during ice_vsi_release. In the function ice_add_eth_mac(), there is a line that hard codes the filter info flag to TX. This is incorrect as this flag will be set by the calling function that built the list of filters to add. So remove the hard coded value. This patch also contains a fix to stop treating the DCBx state of "Not Started" as an error state that kicks DCB in SW mode. This will address having non-cabled interfaces automatically go into SW mode with the FW engine running. Signed-off-by: Dave Ertman <david.m.ertman@intel.com> Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-05-23ice: Refactor the LLDP MIB change event handlingUsha Ketineni1-19/+134
This patch fixes the LLDP MIB change event handling code by removing the workarounds in the current code. Added ice_dcb_need_recfg() to print the DCB configuration changes detected via MIB change event. Signed-off-by: Usha Ketineni <usha.k.ketineni@intel.com> Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-05-23ice: Fix hang when ethtool disables FW LLDPDave Ertman1-12/+19
When disabling and enabling VSIs, there are a couple of flows that recursively acquire the RTNL lock which causes a deadlock. Fix that. Signed-off-by: Dave Ertman <david.m.ertman@intel.com> Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-05-23ice: Implement LLDP persistenceAnirudh Venkataramanan1-25/+5
Implement LLDP persistence across reboots, start and stop of LLDP agent. Add additional parameter to ice_aq_start_lldp and ice_aq_stop_lldp. Also change the ethtool private flag from "disable-fw-lldp" to "enable-fw-lldp". This change will flip the boolean logic of the functionality of the flag (on = enable, off = disable). The change in name and functionality is to differentiate between the pre-persistence and post-persistence states. Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-04-18ice: Add code for DCB rebuildAnirudh Venkataramanan1-0/+78
This patch introduces a new function ice_dcb_rebuild which reinitializes DCB after a reset. Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-04-18ice: Add code to get DCB related statisticsAnirudh Venkataramanan1-0/+38
This patch adds a new function ice_update_dcb_stats to get DCB stats from the hardware and ethtool support for displaying these stats. Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-04-18ice: Add priority information into VLAN headerAnirudh Venkataramanan1-0/+39
This patch introduces a new function ice_tx_prepare_vlan_flags_dcb to insert 802.1p priority information into the VLAN header Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-04-18ice: Update rings based on TC informationAnirudh Venkataramanan1-0/+38
This patch adds a new function ice_vsi_cfg_dcb_rings which updates a VSI's rings based on DCB traffic class information. Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-04-18ice: Add code to process LLDP MIB change eventsAnirudh Venkataramanan1-0/+36
This patch adds support to process LLDP MIB change notifications sent by the firmware. Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-04-18ice: Add code for DCB initialization part 4/4Anirudh Venkataramanan1-2/+80
When the firmware doesn't support LLDP or DCBX, the driver should switch to "software LLDP mode". This patch adds support for the same. Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-04-18ice: Add code for DCB initialization part 3/4Anirudh Venkataramanan1-1/+203
This patch adds a new function ice_pf_dcb_cfg (and related helpers) which applies the DCB configuration obtained from the firmware. As part of this, VSIs/netdevs are updated with traffic class information. This patch requires a bit of a refactor of existing code. 1. For a MIB change event, the associated VSI is closed and brought up again. The gap between closing and opening the VSI can cause a race condition. Fix this by grabbing the rtnl_lock prior to closing the VSI and then only free it after re-opening the VSI during a MIB change event. 2. ice_sched_query_elem is used in ice_sched.c and with this patch, in ice_dcb.c as well. However, ice_dcb.c is not built when CONFIG_DCB is unset. This results in namespace warnings (ice_sched.o: Externally defined symbols with no external references) when CONFIG_DCB is unset. To avoid this move ice_sched_query_elem from ice_sched.c to ice_common.c. Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-04-18ice: Add code for DCB initialization part 2/4Anirudh Venkataramanan1-1/+1
This patch introduces a new top level function ice_init_dcb (and related lower level helper functions) which continues the DCB init flow. This function uses ice_get_dcb_cfg to get, parse and store the DCB configuration. Once this is done, it sets itself up to be notified by the firmware on LLDP MIB change events. Reviewed-by: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-04-18ice: Add code for DCB initialization part 1/4Anirudh Venkataramanan1-0/+42
This patch introduces a skeleton for ice_init_pf_dcb, the top level function for DCB initialization. Subsequent patches will add to this DCB init flow. In this patch, ice_init_pf_dcb checks if DCB is a supported capability. If so, an admin queue call to start the LLDP and DCBx in firmware is issued. If not, an error is reported. Note that we don't fail the driver init if DCB init fails. Reviewed-by: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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