Loading Documentation/ABI/testing/sysfs-bus-pci-devices-aer_stats +6 −6 Original line number Diff line number Diff line Loading @@ -9,7 +9,7 @@ errors may be "seen" / reported by the link partner and not the problematic endpoint itself (which may report all counters as 0 as it never saw any problems). Where: /sys/bus/pci/devices/<dev>/aer_dev_correctable What: /sys/bus/pci/devices/<dev>/aer_dev_correctable Date: July 2018 Kernel Version: 4.19.0 Contact: linux-pci@vger.kernel.org, rajatja@google.com Loading @@ -31,7 +31,7 @@ Header Log Overflow 0 TOTAL_ERR_COR 2 ------------------------------------------------------------------------- Where: /sys/bus/pci/devices/<dev>/aer_dev_fatal What: /sys/bus/pci/devices/<dev>/aer_dev_fatal Date: July 2018 Kernel Version: 4.19.0 Contact: linux-pci@vger.kernel.org, rajatja@google.com Loading Loading @@ -62,7 +62,7 @@ TLP Prefix Blocked Error 0 TOTAL_ERR_FATAL 0 ------------------------------------------------------------------------- Where: /sys/bus/pci/devices/<dev>/aer_dev_nonfatal What: /sys/bus/pci/devices/<dev>/aer_dev_nonfatal Date: July 2018 Kernel Version: 4.19.0 Contact: linux-pci@vger.kernel.org, rajatja@google.com Loading Loading @@ -103,19 +103,19 @@ collectors) that are AER capable. These indicate the number of error messages as device, so these counters include them and are thus cumulative of all the error messages on the PCI hierarchy originating at that root port. Where: /sys/bus/pci/devices/<dev>/aer_stats/aer_rootport_total_err_cor What: /sys/bus/pci/devices/<dev>/aer_stats/aer_rootport_total_err_cor Date: July 2018 Kernel Version: 4.19.0 Contact: linux-pci@vger.kernel.org, rajatja@google.com Description: Total number of ERR_COR messages reported to rootport. Where: /sys/bus/pci/devices/<dev>/aer_stats/aer_rootport_total_err_fatal What: /sys/bus/pci/devices/<dev>/aer_stats/aer_rootport_total_err_fatal Date: July 2018 Kernel Version: 4.19.0 Contact: linux-pci@vger.kernel.org, rajatja@google.com Description: Total number of ERR_FATAL messages reported to rootport. Where: /sys/bus/pci/devices/<dev>/aer_stats/aer_rootport_total_err_nonfatal What: /sys/bus/pci/devices/<dev>/aer_stats/aer_rootport_total_err_nonfatal Date: July 2018 Kernel Version: 4.19.0 Contact: linux-pci@vger.kernel.org, rajatja@google.com Loading Documentation/ABI/testing/sysfs-class-net-queues +11 −11 Original line number Diff line number Diff line What: /sys/class/<iface>/queues/rx-<queue>/rps_cpus What: /sys/class/net/<iface>/queues/rx-<queue>/rps_cpus Date: March 2010 KernelVersion: 2.6.35 Contact: netdev@vger.kernel.org Loading @@ -8,7 +8,7 @@ Description: network device queue. Possible values depend on the number of available CPU(s) in the system. What: /sys/class/<iface>/queues/rx-<queue>/rps_flow_cnt What: /sys/class/net/<iface>/queues/rx-<queue>/rps_flow_cnt Date: April 2010 KernelVersion: 2.6.35 Contact: netdev@vger.kernel.org Loading @@ -16,7 +16,7 @@ Description: Number of Receive Packet Steering flows being currently processed by this particular network device receive queue. What: /sys/class/<iface>/queues/tx-<queue>/tx_timeout What: /sys/class/net/<iface>/queues/tx-<queue>/tx_timeout Date: November 2011 KernelVersion: 3.3 Contact: netdev@vger.kernel.org Loading @@ -24,7 +24,7 @@ Description: Indicates the number of transmit timeout events seen by this network interface transmit queue. What: /sys/class/<iface>/queues/tx-<queue>/tx_maxrate What: /sys/class/net/<iface>/queues/tx-<queue>/tx_maxrate Date: March 2015 KernelVersion: 4.1 Contact: netdev@vger.kernel.org Loading @@ -32,7 +32,7 @@ Description: A Mbps max-rate set for the queue, a value of zero means disabled, default is disabled. What: /sys/class/<iface>/queues/tx-<queue>/xps_cpus What: /sys/class/net/<iface>/queues/tx-<queue>/xps_cpus Date: November 2010 KernelVersion: 2.6.38 Contact: netdev@vger.kernel.org Loading @@ -42,7 +42,7 @@ Description: network device transmit queue. Possible vaules depend on the number of available CPU(s) in the system. What: /sys/class/<iface>/queues/tx-<queue>/xps_rxqs What: /sys/class/net/<iface>/queues/tx-<queue>/xps_rxqs Date: June 2018 KernelVersion: 4.18.0 Contact: netdev@vger.kernel.org Loading @@ -53,7 +53,7 @@ Description: number of available receive queue(s) in the network device. Default is disabled. What: /sys/class/<iface>/queues/tx-<queue>/byte_queue_limits/hold_time What: /sys/class/net/<iface>/queues/tx-<queue>/byte_queue_limits/hold_time Date: November 2011 KernelVersion: 3.3 Contact: netdev@vger.kernel.org Loading @@ -62,7 +62,7 @@ Description: of this particular network device transmit queue. Default value is 1000. What: /sys/class/<iface>/queues/tx-<queue>/byte_queue_limits/inflight What: /sys/class/net/<iface>/queues/tx-<queue>/byte_queue_limits/inflight Date: November 2011 KernelVersion: 3.3 Contact: netdev@vger.kernel.org Loading @@ -70,7 +70,7 @@ Description: Indicates the number of bytes (objects) in flight on this network device transmit queue. What: /sys/class/<iface>/queues/tx-<queue>/byte_queue_limits/limit What: /sys/class/net/<iface>/queues/tx-<queue>/byte_queue_limits/limit Date: November 2011 KernelVersion: 3.3 Contact: netdev@vger.kernel.org Loading @@ -79,7 +79,7 @@ Description: on this network device transmit queue. This value is clamped to be within the bounds defined by limit_max and limit_min. What: /sys/class/<iface>/queues/tx-<queue>/byte_queue_limits/limit_max What: /sys/class/net/<iface>/queues/tx-<queue>/byte_queue_limits/limit_max Date: November 2011 KernelVersion: 3.3 Contact: netdev@vger.kernel.org Loading @@ -88,7 +88,7 @@ Description: queued on this network device transmit queue. See include/linux/dynamic_queue_limits.h for the default value. What: /sys/class/<iface>/queues/tx-<queue>/byte_queue_limits/limit_min What: /sys/class/net/<iface>/queues/tx-<queue>/byte_queue_limits/limit_min Date: November 2011 KernelVersion: 3.3 Contact: netdev@vger.kernel.org Loading Documentation/ABI/testing/sysfs-class-net-statistics +38 −22 Original line number Diff line number Diff line What: /sys/class/<iface>/statistics/collisions What: /sys/class/net/<iface>/statistics/collisions Date: April 2005 KernelVersion: 2.6.12 Contact: netdev@vger.kernel.org Loading @@ -6,7 +6,7 @@ Description: Indicates the number of collisions seen by this network device. This value might not be relevant with all MAC layers. What: /sys/class/<iface>/statistics/multicast What: /sys/class/net/<iface>/statistics/multicast Date: April 2005 KernelVersion: 2.6.12 Contact: netdev@vger.kernel.org Loading @@ -14,7 +14,7 @@ Description: Indicates the number of multicast packets received by this network device. What: /sys/class/<iface>/statistics/rx_bytes What: /sys/class/net/<iface>/statistics/rx_bytes Date: April 2005 KernelVersion: 2.6.12 Contact: netdev@vger.kernel.org Loading @@ -23,7 +23,7 @@ Description: See the network driver for the exact meaning of when this value is incremented. What: /sys/class/<iface>/statistics/rx_compressed What: /sys/class/net/<iface>/statistics/rx_compressed Date: April 2005 KernelVersion: 2.6.12 Contact: netdev@vger.kernel.org Loading @@ -32,7 +32,7 @@ Description: network device. This value might only be relevant for interfaces that support packet compression (e.g: PPP). What: /sys/class/<iface>/statistics/rx_crc_errors What: /sys/class/net/<iface>/statistics/rx_crc_errors Date: April 2005 KernelVersion: 2.6.12 Contact: netdev@vger.kernel.org Loading @@ -41,7 +41,7 @@ Description: by this network device. Note that the specific meaning might depend on the MAC layer used by the interface. What: /sys/class/<iface>/statistics/rx_dropped What: /sys/class/net/<iface>/statistics/rx_dropped Date: April 2005 KernelVersion: 2.6.12 Contact: netdev@vger.kernel.org Loading @@ -51,7 +51,15 @@ Description: packet processing. See the network driver for the exact meaning of this value. What: /sys/class/<iface>/statistics/rx_fifo_errors What: /sys/class/net/<iface>/statistics/rx_errors Date: April 2005 KernelVersion: 2.6.12 Contact: netdev@vger.kernel.org Description: Indicates the number of receive errors on this network device. See the network driver for the exact meaning of this value. What: /sys/class/net/<iface>/statistics/rx_fifo_errors Date: April 2005 KernelVersion: 2.6.12 Contact: netdev@vger.kernel.org Loading @@ -60,7 +68,7 @@ Description: network device. See the network driver for the exact meaning of this value. What: /sys/class/<iface>/statistics/rx_frame_errors What: /sys/class/net/<iface>/statistics/rx_frame_errors Date: April 2005 KernelVersion: 2.6.12 Contact: netdev@vger.kernel.org Loading @@ -70,7 +78,7 @@ Description: on the MAC layer protocol used. See the network driver for the exact meaning of this value. What: /sys/class/<iface>/statistics/rx_length_errors What: /sys/class/net/<iface>/statistics/rx_length_errors Date: April 2005 KernelVersion: 2.6.12 Contact: netdev@vger.kernel.org Loading @@ -79,7 +87,7 @@ Description: error, oversized or undersized. See the network driver for the exact meaning of this value. What: /sys/class/<iface>/statistics/rx_missed_errors What: /sys/class/net/<iface>/statistics/rx_missed_errors Date: April 2005 KernelVersion: 2.6.12 Contact: netdev@vger.kernel.org Loading @@ -88,7 +96,15 @@ Description: due to lack of capacity in the receive side. See the network driver for the exact meaning of this value. What: /sys/class/<iface>/statistics/rx_over_errors What: /sys/class/net/<iface>/statistics/rx_nohandler Date: February 2016 KernelVersion: 4.6 Contact: netdev@vger.kernel.org Description: Indicates the number of received packets that were dropped on an inactive device by the network core. What: /sys/class/net/<iface>/statistics/rx_over_errors Date: April 2005 KernelVersion: 2.6.12 Contact: netdev@vger.kernel.org Loading @@ -98,7 +114,7 @@ Description: (e.g: larger than MTU). See the network driver for the exact meaning of this value. What: /sys/class/<iface>/statistics/rx_packets What: /sys/class/net/<iface>/statistics/rx_packets Date: April 2005 KernelVersion: 2.6.12 Contact: netdev@vger.kernel.org Loading @@ -106,7 +122,7 @@ Description: Indicates the total number of good packets received by this network device. What: /sys/class/<iface>/statistics/tx_aborted_errors What: /sys/class/net/<iface>/statistics/tx_aborted_errors Date: April 2005 KernelVersion: 2.6.12 Contact: netdev@vger.kernel.org Loading @@ -116,7 +132,7 @@ Description: a medium collision). See the network driver for the exact meaning of this value. What: /sys/class/<iface>/statistics/tx_bytes What: /sys/class/net/<iface>/statistics/tx_bytes Date: April 2005 KernelVersion: 2.6.12 Contact: netdev@vger.kernel.org Loading @@ -127,7 +143,7 @@ Description: transmitted packets or all packets that have been queued for transmission. What: /sys/class/<iface>/statistics/tx_carrier_errors What: /sys/class/net/<iface>/statistics/tx_carrier_errors Date: April 2005 KernelVersion: 2.6.12 Contact: netdev@vger.kernel.org Loading @@ -136,7 +152,7 @@ Description: because of carrier errors (e.g: physical link down). See the network driver for the exact meaning of this value. What: /sys/class/<iface>/statistics/tx_compressed What: /sys/class/net/<iface>/statistics/tx_compressed Date: April 2005 KernelVersion: 2.6.12 Contact: netdev@vger.kernel.org Loading @@ -145,7 +161,7 @@ Description: this might only be relevant for devices that support compression (e.g: PPP). What: /sys/class/<iface>/statistics/tx_dropped What: /sys/class/net/<iface>/statistics/tx_dropped Date: April 2005 KernelVersion: 2.6.12 Contact: netdev@vger.kernel.org Loading @@ -154,7 +170,7 @@ Description: See the driver for the exact reasons as to why the packets were dropped. What: /sys/class/<iface>/statistics/tx_errors What: /sys/class/net/<iface>/statistics/tx_errors Date: April 2005 KernelVersion: 2.6.12 Contact: netdev@vger.kernel.org Loading @@ -163,7 +179,7 @@ Description: a network device. See the driver for the exact reasons as to why the packets were dropped. What: /sys/class/<iface>/statistics/tx_fifo_errors What: /sys/class/net/<iface>/statistics/tx_fifo_errors Date: April 2005 KernelVersion: 2.6.12 Contact: netdev@vger.kernel.org Loading @@ -172,7 +188,7 @@ Description: FIFO error. See the driver for the exact reasons as to why the packets were dropped. What: /sys/class/<iface>/statistics/tx_heartbeat_errors What: /sys/class/net/<iface>/statistics/tx_heartbeat_errors Date: April 2005 KernelVersion: 2.6.12 Contact: netdev@vger.kernel.org Loading @@ -181,7 +197,7 @@ Description: reported as heartbeat errors. See the driver for the exact reasons as to why the packets were dropped. What: /sys/class/<iface>/statistics/tx_packets What: /sys/class/net/<iface>/statistics/tx_packets Date: April 2005 KernelVersion: 2.6.12 Contact: netdev@vger.kernel.org Loading @@ -190,7 +206,7 @@ Description: device. See the driver for whether this reports the number of all attempted or successful transmissions. What: /sys/class/<iface>/statistics/tx_window_errors What: /sys/class/net/<iface>/statistics/tx_window_errors Date: April 2005 KernelVersion: 2.6.12 Contact: netdev@vger.kernel.org Loading Documentation/admin-guide/hw-vuln/spectre.rst +11 −7 Original line number Diff line number Diff line Loading @@ -484,11 +484,14 @@ Spectre variant 2 Systems which support enhanced IBRS (eIBRS) enable IBRS protection once at boot, by setting the IBRS bit, and they're automatically protected against Spectre v2 variant attacks, including cross-thread branch target injections on SMT systems (STIBP). In other words, eIBRS enables STIBP too. Spectre v2 variant attacks. Legacy IBRS systems clear the IBRS bit on exit to userspace and therefore explicitly enable STIBP for that On Intel's enhanced IBRS systems, this includes cross-thread branch target injections on SMT systems (STIBP). In other words, Intel eIBRS enables STIBP, too. AMD Automatic IBRS does not protect userspace, and Legacy IBRS systems clear the IBRS bit on exit to userspace, therefore both explicitly enable STIBP. The retpoline mitigation is turned on by default on vulnerable CPUs. It can be forced on or off by the administrator Loading Loading @@ -622,9 +625,10 @@ kernel command line. retpoline,generic Retpolines retpoline,lfence LFENCE; indirect branch retpoline,amd alias for retpoline,lfence eibrs enhanced IBRS eibrs,retpoline enhanced IBRS + Retpolines eibrs,lfence enhanced IBRS + LFENCE eibrs Enhanced/Auto IBRS eibrs,retpoline Enhanced/Auto IBRS + Retpolines eibrs,lfence Enhanced/Auto IBRS + LFENCE ibrs use IBRS to protect kernel Not specifying this option is equivalent to spectre_v2=auto. Loading Documentation/admin-guide/kernel-parameters.txt +3 −3 Original line number Diff line number Diff line Loading @@ -4440,9 +4440,9 @@ retpoline,generic - Retpolines retpoline,lfence - LFENCE; indirect branch retpoline,amd - alias for retpoline,lfence eibrs - enhanced IBRS eibrs,retpoline - enhanced IBRS + Retpolines eibrs,lfence - enhanced IBRS + LFENCE eibrs - Enhanced/Auto IBRS eibrs,retpoline - Enhanced/Auto IBRS + Retpolines eibrs,lfence - Enhanced/Auto IBRS + LFENCE ibrs - use IBRS to protect kernel Not specifying this option is equivalent to Loading Loading
Documentation/ABI/testing/sysfs-bus-pci-devices-aer_stats +6 −6 Original line number Diff line number Diff line Loading @@ -9,7 +9,7 @@ errors may be "seen" / reported by the link partner and not the problematic endpoint itself (which may report all counters as 0 as it never saw any problems). Where: /sys/bus/pci/devices/<dev>/aer_dev_correctable What: /sys/bus/pci/devices/<dev>/aer_dev_correctable Date: July 2018 Kernel Version: 4.19.0 Contact: linux-pci@vger.kernel.org, rajatja@google.com Loading @@ -31,7 +31,7 @@ Header Log Overflow 0 TOTAL_ERR_COR 2 ------------------------------------------------------------------------- Where: /sys/bus/pci/devices/<dev>/aer_dev_fatal What: /sys/bus/pci/devices/<dev>/aer_dev_fatal Date: July 2018 Kernel Version: 4.19.0 Contact: linux-pci@vger.kernel.org, rajatja@google.com Loading Loading @@ -62,7 +62,7 @@ TLP Prefix Blocked Error 0 TOTAL_ERR_FATAL 0 ------------------------------------------------------------------------- Where: /sys/bus/pci/devices/<dev>/aer_dev_nonfatal What: /sys/bus/pci/devices/<dev>/aer_dev_nonfatal Date: July 2018 Kernel Version: 4.19.0 Contact: linux-pci@vger.kernel.org, rajatja@google.com Loading Loading @@ -103,19 +103,19 @@ collectors) that are AER capable. These indicate the number of error messages as device, so these counters include them and are thus cumulative of all the error messages on the PCI hierarchy originating at that root port. Where: /sys/bus/pci/devices/<dev>/aer_stats/aer_rootport_total_err_cor What: /sys/bus/pci/devices/<dev>/aer_stats/aer_rootport_total_err_cor Date: July 2018 Kernel Version: 4.19.0 Contact: linux-pci@vger.kernel.org, rajatja@google.com Description: Total number of ERR_COR messages reported to rootport. Where: /sys/bus/pci/devices/<dev>/aer_stats/aer_rootport_total_err_fatal What: /sys/bus/pci/devices/<dev>/aer_stats/aer_rootport_total_err_fatal Date: July 2018 Kernel Version: 4.19.0 Contact: linux-pci@vger.kernel.org, rajatja@google.com Description: Total number of ERR_FATAL messages reported to rootport. Where: /sys/bus/pci/devices/<dev>/aer_stats/aer_rootport_total_err_nonfatal What: /sys/bus/pci/devices/<dev>/aer_stats/aer_rootport_total_err_nonfatal Date: July 2018 Kernel Version: 4.19.0 Contact: linux-pci@vger.kernel.org, rajatja@google.com Loading
Documentation/ABI/testing/sysfs-class-net-queues +11 −11 Original line number Diff line number Diff line What: /sys/class/<iface>/queues/rx-<queue>/rps_cpus What: /sys/class/net/<iface>/queues/rx-<queue>/rps_cpus Date: March 2010 KernelVersion: 2.6.35 Contact: netdev@vger.kernel.org Loading @@ -8,7 +8,7 @@ Description: network device queue. Possible values depend on the number of available CPU(s) in the system. What: /sys/class/<iface>/queues/rx-<queue>/rps_flow_cnt What: /sys/class/net/<iface>/queues/rx-<queue>/rps_flow_cnt Date: April 2010 KernelVersion: 2.6.35 Contact: netdev@vger.kernel.org Loading @@ -16,7 +16,7 @@ Description: Number of Receive Packet Steering flows being currently processed by this particular network device receive queue. What: /sys/class/<iface>/queues/tx-<queue>/tx_timeout What: /sys/class/net/<iface>/queues/tx-<queue>/tx_timeout Date: November 2011 KernelVersion: 3.3 Contact: netdev@vger.kernel.org Loading @@ -24,7 +24,7 @@ Description: Indicates the number of transmit timeout events seen by this network interface transmit queue. What: /sys/class/<iface>/queues/tx-<queue>/tx_maxrate What: /sys/class/net/<iface>/queues/tx-<queue>/tx_maxrate Date: March 2015 KernelVersion: 4.1 Contact: netdev@vger.kernel.org Loading @@ -32,7 +32,7 @@ Description: A Mbps max-rate set for the queue, a value of zero means disabled, default is disabled. What: /sys/class/<iface>/queues/tx-<queue>/xps_cpus What: /sys/class/net/<iface>/queues/tx-<queue>/xps_cpus Date: November 2010 KernelVersion: 2.6.38 Contact: netdev@vger.kernel.org Loading @@ -42,7 +42,7 @@ Description: network device transmit queue. Possible vaules depend on the number of available CPU(s) in the system. What: /sys/class/<iface>/queues/tx-<queue>/xps_rxqs What: /sys/class/net/<iface>/queues/tx-<queue>/xps_rxqs Date: June 2018 KernelVersion: 4.18.0 Contact: netdev@vger.kernel.org Loading @@ -53,7 +53,7 @@ Description: number of available receive queue(s) in the network device. Default is disabled. What: /sys/class/<iface>/queues/tx-<queue>/byte_queue_limits/hold_time What: /sys/class/net/<iface>/queues/tx-<queue>/byte_queue_limits/hold_time Date: November 2011 KernelVersion: 3.3 Contact: netdev@vger.kernel.org Loading @@ -62,7 +62,7 @@ Description: of this particular network device transmit queue. Default value is 1000. What: /sys/class/<iface>/queues/tx-<queue>/byte_queue_limits/inflight What: /sys/class/net/<iface>/queues/tx-<queue>/byte_queue_limits/inflight Date: November 2011 KernelVersion: 3.3 Contact: netdev@vger.kernel.org Loading @@ -70,7 +70,7 @@ Description: Indicates the number of bytes (objects) in flight on this network device transmit queue. What: /sys/class/<iface>/queues/tx-<queue>/byte_queue_limits/limit What: /sys/class/net/<iface>/queues/tx-<queue>/byte_queue_limits/limit Date: November 2011 KernelVersion: 3.3 Contact: netdev@vger.kernel.org Loading @@ -79,7 +79,7 @@ Description: on this network device transmit queue. This value is clamped to be within the bounds defined by limit_max and limit_min. What: /sys/class/<iface>/queues/tx-<queue>/byte_queue_limits/limit_max What: /sys/class/net/<iface>/queues/tx-<queue>/byte_queue_limits/limit_max Date: November 2011 KernelVersion: 3.3 Contact: netdev@vger.kernel.org Loading @@ -88,7 +88,7 @@ Description: queued on this network device transmit queue. See include/linux/dynamic_queue_limits.h for the default value. What: /sys/class/<iface>/queues/tx-<queue>/byte_queue_limits/limit_min What: /sys/class/net/<iface>/queues/tx-<queue>/byte_queue_limits/limit_min Date: November 2011 KernelVersion: 3.3 Contact: netdev@vger.kernel.org Loading
Documentation/ABI/testing/sysfs-class-net-statistics +38 −22 Original line number Diff line number Diff line What: /sys/class/<iface>/statistics/collisions What: /sys/class/net/<iface>/statistics/collisions Date: April 2005 KernelVersion: 2.6.12 Contact: netdev@vger.kernel.org Loading @@ -6,7 +6,7 @@ Description: Indicates the number of collisions seen by this network device. This value might not be relevant with all MAC layers. What: /sys/class/<iface>/statistics/multicast What: /sys/class/net/<iface>/statistics/multicast Date: April 2005 KernelVersion: 2.6.12 Contact: netdev@vger.kernel.org Loading @@ -14,7 +14,7 @@ Description: Indicates the number of multicast packets received by this network device. What: /sys/class/<iface>/statistics/rx_bytes What: /sys/class/net/<iface>/statistics/rx_bytes Date: April 2005 KernelVersion: 2.6.12 Contact: netdev@vger.kernel.org Loading @@ -23,7 +23,7 @@ Description: See the network driver for the exact meaning of when this value is incremented. What: /sys/class/<iface>/statistics/rx_compressed What: /sys/class/net/<iface>/statistics/rx_compressed Date: April 2005 KernelVersion: 2.6.12 Contact: netdev@vger.kernel.org Loading @@ -32,7 +32,7 @@ Description: network device. This value might only be relevant for interfaces that support packet compression (e.g: PPP). What: /sys/class/<iface>/statistics/rx_crc_errors What: /sys/class/net/<iface>/statistics/rx_crc_errors Date: April 2005 KernelVersion: 2.6.12 Contact: netdev@vger.kernel.org Loading @@ -41,7 +41,7 @@ Description: by this network device. Note that the specific meaning might depend on the MAC layer used by the interface. What: /sys/class/<iface>/statistics/rx_dropped What: /sys/class/net/<iface>/statistics/rx_dropped Date: April 2005 KernelVersion: 2.6.12 Contact: netdev@vger.kernel.org Loading @@ -51,7 +51,15 @@ Description: packet processing. See the network driver for the exact meaning of this value. What: /sys/class/<iface>/statistics/rx_fifo_errors What: /sys/class/net/<iface>/statistics/rx_errors Date: April 2005 KernelVersion: 2.6.12 Contact: netdev@vger.kernel.org Description: Indicates the number of receive errors on this network device. See the network driver for the exact meaning of this value. What: /sys/class/net/<iface>/statistics/rx_fifo_errors Date: April 2005 KernelVersion: 2.6.12 Contact: netdev@vger.kernel.org Loading @@ -60,7 +68,7 @@ Description: network device. See the network driver for the exact meaning of this value. What: /sys/class/<iface>/statistics/rx_frame_errors What: /sys/class/net/<iface>/statistics/rx_frame_errors Date: April 2005 KernelVersion: 2.6.12 Contact: netdev@vger.kernel.org Loading @@ -70,7 +78,7 @@ Description: on the MAC layer protocol used. See the network driver for the exact meaning of this value. What: /sys/class/<iface>/statistics/rx_length_errors What: /sys/class/net/<iface>/statistics/rx_length_errors Date: April 2005 KernelVersion: 2.6.12 Contact: netdev@vger.kernel.org Loading @@ -79,7 +87,7 @@ Description: error, oversized or undersized. See the network driver for the exact meaning of this value. What: /sys/class/<iface>/statistics/rx_missed_errors What: /sys/class/net/<iface>/statistics/rx_missed_errors Date: April 2005 KernelVersion: 2.6.12 Contact: netdev@vger.kernel.org Loading @@ -88,7 +96,15 @@ Description: due to lack of capacity in the receive side. See the network driver for the exact meaning of this value. What: /sys/class/<iface>/statistics/rx_over_errors What: /sys/class/net/<iface>/statistics/rx_nohandler Date: February 2016 KernelVersion: 4.6 Contact: netdev@vger.kernel.org Description: Indicates the number of received packets that were dropped on an inactive device by the network core. What: /sys/class/net/<iface>/statistics/rx_over_errors Date: April 2005 KernelVersion: 2.6.12 Contact: netdev@vger.kernel.org Loading @@ -98,7 +114,7 @@ Description: (e.g: larger than MTU). See the network driver for the exact meaning of this value. What: /sys/class/<iface>/statistics/rx_packets What: /sys/class/net/<iface>/statistics/rx_packets Date: April 2005 KernelVersion: 2.6.12 Contact: netdev@vger.kernel.org Loading @@ -106,7 +122,7 @@ Description: Indicates the total number of good packets received by this network device. What: /sys/class/<iface>/statistics/tx_aborted_errors What: /sys/class/net/<iface>/statistics/tx_aborted_errors Date: April 2005 KernelVersion: 2.6.12 Contact: netdev@vger.kernel.org Loading @@ -116,7 +132,7 @@ Description: a medium collision). See the network driver for the exact meaning of this value. What: /sys/class/<iface>/statistics/tx_bytes What: /sys/class/net/<iface>/statistics/tx_bytes Date: April 2005 KernelVersion: 2.6.12 Contact: netdev@vger.kernel.org Loading @@ -127,7 +143,7 @@ Description: transmitted packets or all packets that have been queued for transmission. What: /sys/class/<iface>/statistics/tx_carrier_errors What: /sys/class/net/<iface>/statistics/tx_carrier_errors Date: April 2005 KernelVersion: 2.6.12 Contact: netdev@vger.kernel.org Loading @@ -136,7 +152,7 @@ Description: because of carrier errors (e.g: physical link down). See the network driver for the exact meaning of this value. What: /sys/class/<iface>/statistics/tx_compressed What: /sys/class/net/<iface>/statistics/tx_compressed Date: April 2005 KernelVersion: 2.6.12 Contact: netdev@vger.kernel.org Loading @@ -145,7 +161,7 @@ Description: this might only be relevant for devices that support compression (e.g: PPP). What: /sys/class/<iface>/statistics/tx_dropped What: /sys/class/net/<iface>/statistics/tx_dropped Date: April 2005 KernelVersion: 2.6.12 Contact: netdev@vger.kernel.org Loading @@ -154,7 +170,7 @@ Description: See the driver for the exact reasons as to why the packets were dropped. What: /sys/class/<iface>/statistics/tx_errors What: /sys/class/net/<iface>/statistics/tx_errors Date: April 2005 KernelVersion: 2.6.12 Contact: netdev@vger.kernel.org Loading @@ -163,7 +179,7 @@ Description: a network device. See the driver for the exact reasons as to why the packets were dropped. What: /sys/class/<iface>/statistics/tx_fifo_errors What: /sys/class/net/<iface>/statistics/tx_fifo_errors Date: April 2005 KernelVersion: 2.6.12 Contact: netdev@vger.kernel.org Loading @@ -172,7 +188,7 @@ Description: FIFO error. See the driver for the exact reasons as to why the packets were dropped. What: /sys/class/<iface>/statistics/tx_heartbeat_errors What: /sys/class/net/<iface>/statistics/tx_heartbeat_errors Date: April 2005 KernelVersion: 2.6.12 Contact: netdev@vger.kernel.org Loading @@ -181,7 +197,7 @@ Description: reported as heartbeat errors. See the driver for the exact reasons as to why the packets were dropped. What: /sys/class/<iface>/statistics/tx_packets What: /sys/class/net/<iface>/statistics/tx_packets Date: April 2005 KernelVersion: 2.6.12 Contact: netdev@vger.kernel.org Loading @@ -190,7 +206,7 @@ Description: device. See the driver for whether this reports the number of all attempted or successful transmissions. What: /sys/class/<iface>/statistics/tx_window_errors What: /sys/class/net/<iface>/statistics/tx_window_errors Date: April 2005 KernelVersion: 2.6.12 Contact: netdev@vger.kernel.org Loading
Documentation/admin-guide/hw-vuln/spectre.rst +11 −7 Original line number Diff line number Diff line Loading @@ -484,11 +484,14 @@ Spectre variant 2 Systems which support enhanced IBRS (eIBRS) enable IBRS protection once at boot, by setting the IBRS bit, and they're automatically protected against Spectre v2 variant attacks, including cross-thread branch target injections on SMT systems (STIBP). In other words, eIBRS enables STIBP too. Spectre v2 variant attacks. Legacy IBRS systems clear the IBRS bit on exit to userspace and therefore explicitly enable STIBP for that On Intel's enhanced IBRS systems, this includes cross-thread branch target injections on SMT systems (STIBP). In other words, Intel eIBRS enables STIBP, too. AMD Automatic IBRS does not protect userspace, and Legacy IBRS systems clear the IBRS bit on exit to userspace, therefore both explicitly enable STIBP. The retpoline mitigation is turned on by default on vulnerable CPUs. It can be forced on or off by the administrator Loading Loading @@ -622,9 +625,10 @@ kernel command line. retpoline,generic Retpolines retpoline,lfence LFENCE; indirect branch retpoline,amd alias for retpoline,lfence eibrs enhanced IBRS eibrs,retpoline enhanced IBRS + Retpolines eibrs,lfence enhanced IBRS + LFENCE eibrs Enhanced/Auto IBRS eibrs,retpoline Enhanced/Auto IBRS + Retpolines eibrs,lfence Enhanced/Auto IBRS + LFENCE ibrs use IBRS to protect kernel Not specifying this option is equivalent to spectre_v2=auto. Loading
Documentation/admin-guide/kernel-parameters.txt +3 −3 Original line number Diff line number Diff line Loading @@ -4440,9 +4440,9 @@ retpoline,generic - Retpolines retpoline,lfence - LFENCE; indirect branch retpoline,amd - alias for retpoline,lfence eibrs - enhanced IBRS eibrs,retpoline - enhanced IBRS + Retpolines eibrs,lfence - enhanced IBRS + LFENCE eibrs - Enhanced/Auto IBRS eibrs,retpoline - Enhanced/Auto IBRS + Retpolines eibrs,lfence - Enhanced/Auto IBRS + LFENCE ibrs - use IBRS to protect kernel Not specifying this option is equivalent to Loading
