1 /* SPDX-License-Identifier: BSD-3-Clause */ 2 /* Copyright (c) 2021, Intel Corporation 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright notice, 9 * this list of conditions and the following disclaimer. 10 * 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * 3. Neither the name of the Intel Corporation nor the names of its 16 * contributors may be used to endorse or promote products derived from 17 * this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 20 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 23 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 /*$FreeBSD$*/ 32 33 /** 34 * @file ice_common_sysctls.h 35 * @brief driver wide sysctls not related to the iflib stack 36 * 37 * Contains static sysctl values which are driver wide and configure all 38 * devices of the driver at once. 39 * 40 * Device specific sysctls are setup by functions in ice_lib.c 41 */ 42 43 #ifndef _ICE_COMMON_SYSCTLS_H_ 44 #define _ICE_COMMON_SYSCTLS_H_ 45 46 #include <sys/sysctl.h> 47 48 /** 49 * @var ice_enable_irdma 50 * @brief boolean indicating if the iRDMA client interface is enabled 51 * 52 * Global sysctl variable indicating whether the RDMA client interface feature 53 * is enabled. 54 */ 55 bool ice_enable_irdma = true; 56 57 /** 58 * @var ice_enable_tx_fc_filter 59 * @brief boolean indicating if the Tx Flow Control filter should be enabled 60 * 61 * Global sysctl variable indicating whether the Tx Flow Control filters 62 * should be enabled. If true, Ethertype 0x8808 packets will be dropped if 63 * they come from non-HW sources. If false, packets coming from software will 64 * not be dropped. Leave this on if unless you must send flow control frames 65 * (or other control frames) from software. 66 * 67 * @remark each PF has a separate sysctl which can override this value. 68 */ 69 bool ice_enable_tx_fc_filter = true; 70 71 /** 72 * @var ice_enable_tx_lldp_filter 73 * @brief boolean indicating if the Tx LLDP filter should be enabled 74 * 75 * Global sysctl variable indicating whether the Tx Flow Control filters 76 * should be enabled. If true, Ethertype 0x88cc packets will be dropped if 77 * they come from non-HW sources. If false, packets coming from software will 78 * not be dropped. Leave this on if unless you must send LLDP frames from 79 * software. 80 * 81 * @remark each PF has a separate sysctl which can override this value. 82 */ 83 bool ice_enable_tx_lldp_filter = true; 84 85 /** 86 * @var ice_enable_health_events 87 * @brief boolean indicating if health status events from the FW should be reported 88 * 89 * Global sysctl variable indicating whether the Health Status events from the 90 * FW should be enabled. If true, if an event occurs, the driver will print out 91 * a message with a description of the event and possible actions to take. 92 * 93 * @remark each PF has a separate sysctl which can override this value. 94 */ 95 bool ice_enable_health_events = true; 96 97 /** 98 * @var ice_rdma_max_msix 99 * @brief maximum number of MSI-X vectors to reserve for RDMA interface 100 * 101 * Global sysctl variable indicating the maximum number of MSI-X vectors to 102 * reserve for a single RDMA interface. 103 */ 104 static uint16_t ice_rdma_max_msix = ICE_RDMA_MAX_MSIX; 105 106 /* sysctls marked as tunable, (i.e. with the CTLFLAG_TUN set) will 107 * automatically load tunable values, without the need to manually create the 108 * TUNABLE definition. 109 * 110 * This works since at least FreeBSD 11, and was backported into FreeBSD 10 111 * before the FreeBSD 10.1-RELEASE. 112 * 113 * If the tunable needs a custom loader, mark the SYSCTL as CTLFLAG_NOFETCH, 114 * and create the tunable manually. 115 */ 116 117 static SYSCTL_NODE(_hw, OID_AUTO, ice, CTLFLAG_RD, 0, "ICE driver parameters"); 118 119 static SYSCTL_NODE(_hw_ice, OID_AUTO, debug, ICE_CTLFLAG_DEBUG | CTLFLAG_RD, 0, 120 "ICE driver debug parameters"); 121 122 SYSCTL_BOOL(_hw_ice, OID_AUTO, enable_health_events, CTLFLAG_RDTUN, 123 &ice_enable_health_events, 0, 124 "Enable FW health event reporting globally"); 125 126 SYSCTL_BOOL(_hw_ice, OID_AUTO, irdma, CTLFLAG_RDTUN, &ice_enable_irdma, 0, 127 "Enable iRDMA client interface"); 128 129 SYSCTL_U16(_hw_ice, OID_AUTO, rdma_max_msix, CTLFLAG_RDTUN, &ice_rdma_max_msix, 130 0, "Maximum number of MSI-X vectors to reserve per RDMA interface"); 131 132 SYSCTL_BOOL(_hw_ice_debug, OID_AUTO, enable_tx_fc_filter, CTLFLAG_RDTUN, 133 &ice_enable_tx_fc_filter, 0, 134 "Drop Ethertype 0x8808 control frames originating from non-HW sources"); 135 136 SYSCTL_BOOL(_hw_ice_debug, OID_AUTO, enable_tx_lldp_filter, CTLFLAG_RDTUN, 137 &ice_enable_tx_lldp_filter, 0, 138 "Drop Ethertype 0x88cc LLDP frames originating from non-HW sources"); 139 140 #endif /* _ICE_COMMON_SYSCTLS_H_ */ 141