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| 1 | +// SPDX-License-Identifier: GPL-2.0 |
| 2 | +/* Copyright (c) 2024, Intel Corporation. */ |
| 3 | + |
| 4 | +#include "health.h" |
| 5 | +#include "ice.h" |
| 6 | + |
| 7 | +#define ICE_DEVLINK_FMSG_PUT_FIELD(fmsg, obj, name) \ |
| 8 | + devlink_fmsg_put(fmsg, #name, (obj)->name) |
| 9 | + |
| 10 | +/** |
| 11 | + * ice_devlink_health_report - boilerplate to call given @reporter |
| 12 | + * |
| 13 | + * @reporter: devlink health reporter to call, do nothing on NULL |
| 14 | + * @msg: message to pass up, "event name" is fine |
| 15 | + * @priv_ctx: typically some event struct |
| 16 | + */ |
| 17 | +static void ice_devlink_health_report(struct devlink_health_reporter *reporter, |
| 18 | + const char *msg, void *priv_ctx) |
| 19 | +{ |
| 20 | + if (!reporter) |
| 21 | + return; |
| 22 | + |
| 23 | + /* We do not do auto recovering, so return value of the below function |
| 24 | + * will always be 0, thus we do ignore it. |
| 25 | + */ |
| 26 | + devlink_health_report(reporter, msg, priv_ctx); |
| 27 | +} |
| 28 | + |
| 29 | +struct ice_mdd_event { |
| 30 | + enum ice_mdd_src src; |
| 31 | + u16 vf_num; |
| 32 | + u16 queue; |
| 33 | + u8 pf_num; |
| 34 | + u8 event; |
| 35 | +}; |
| 36 | + |
| 37 | +static const char *ice_mdd_src_to_str(enum ice_mdd_src src) |
| 38 | +{ |
| 39 | + switch (src) { |
| 40 | + case ICE_MDD_SRC_TX_PQM: |
| 41 | + return "tx_pqm"; |
| 42 | + case ICE_MDD_SRC_TX_TCLAN: |
| 43 | + return "tx_tclan"; |
| 44 | + case ICE_MDD_SRC_TX_TDPU: |
| 45 | + return "tx_tdpu"; |
| 46 | + case ICE_MDD_SRC_RX: |
| 47 | + return "rx"; |
| 48 | + default: |
| 49 | + return "invalid"; |
| 50 | + } |
| 51 | +} |
| 52 | + |
| 53 | +static int |
| 54 | +ice_mdd_reporter_dump(struct devlink_health_reporter *reporter, |
| 55 | + struct devlink_fmsg *fmsg, void *priv_ctx, |
| 56 | + struct netlink_ext_ack *extack) |
| 57 | +{ |
| 58 | + struct ice_mdd_event *mdd_event = priv_ctx; |
| 59 | + const char *src; |
| 60 | + |
| 61 | + if (!mdd_event) |
| 62 | + return 0; |
| 63 | + |
| 64 | + src = ice_mdd_src_to_str(mdd_event->src); |
| 65 | + |
| 66 | + devlink_fmsg_obj_nest_start(fmsg); |
| 67 | + devlink_fmsg_put(fmsg, "src", src); |
| 68 | + ICE_DEVLINK_FMSG_PUT_FIELD(fmsg, mdd_event, pf_num); |
| 69 | + ICE_DEVLINK_FMSG_PUT_FIELD(fmsg, mdd_event, vf_num); |
| 70 | + ICE_DEVLINK_FMSG_PUT_FIELD(fmsg, mdd_event, event); |
| 71 | + ICE_DEVLINK_FMSG_PUT_FIELD(fmsg, mdd_event, queue); |
| 72 | + devlink_fmsg_obj_nest_end(fmsg); |
| 73 | + |
| 74 | + return 0; |
| 75 | +} |
| 76 | + |
| 77 | +/** |
| 78 | + * ice_report_mdd_event - Report an MDD event through devlink health |
| 79 | + * @pf: the PF device structure |
| 80 | + * @src: the HW block that was the source of this MDD event |
| 81 | + * @pf_num: the pf_num on which the MDD event occurred |
| 82 | + * @vf_num: the vf_num on which the MDD event occurred |
| 83 | + * @event: the event type of the MDD event |
| 84 | + * @queue: the queue on which the MDD event occurred |
| 85 | + * |
| 86 | + * Report an MDD event that has occurred on this PF. |
| 87 | + */ |
| 88 | +void ice_report_mdd_event(struct ice_pf *pf, enum ice_mdd_src src, u8 pf_num, |
| 89 | + u16 vf_num, u8 event, u16 queue) |
| 90 | +{ |
| 91 | + struct ice_mdd_event ev = { |
| 92 | + .src = src, |
| 93 | + .pf_num = pf_num, |
| 94 | + .vf_num = vf_num, |
| 95 | + .event = event, |
| 96 | + .queue = queue, |
| 97 | + }; |
| 98 | + |
| 99 | + ice_devlink_health_report(pf->health_reporters.mdd, "MDD event", &ev); |
| 100 | +} |
| 101 | + |
| 102 | +/** |
| 103 | + * ice_fmsg_put_ptr - put hex value of pointer into fmsg |
| 104 | + * |
| 105 | + * @fmsg: devlink fmsg under construction |
| 106 | + * @name: name to pass |
| 107 | + * @ptr: 64 bit value to print as hex and put into fmsg |
| 108 | + */ |
| 109 | +static void ice_fmsg_put_ptr(struct devlink_fmsg *fmsg, const char *name, |
| 110 | + void *ptr) |
| 111 | +{ |
| 112 | + char buf[sizeof(ptr) * 3]; |
| 113 | + |
| 114 | + sprintf(buf, "%p", ptr); |
| 115 | + devlink_fmsg_put(fmsg, name, buf); |
| 116 | +} |
| 117 | + |
| 118 | +struct ice_tx_hang_event { |
| 119 | + u32 head; |
| 120 | + u32 intr; |
| 121 | + u16 vsi_num; |
| 122 | + u16 queue; |
| 123 | + u16 next_to_clean; |
| 124 | + u16 next_to_use; |
| 125 | + struct ice_tx_ring *tx_ring; |
| 126 | +}; |
| 127 | + |
| 128 | +static int ice_tx_hang_reporter_dump(struct devlink_health_reporter *reporter, |
| 129 | + struct devlink_fmsg *fmsg, void *priv_ctx, |
| 130 | + struct netlink_ext_ack *extack) |
| 131 | +{ |
| 132 | + struct ice_tx_hang_event *event = priv_ctx; |
| 133 | + struct sk_buff *skb; |
| 134 | + |
| 135 | + if (!event) |
| 136 | + return 0; |
| 137 | + |
| 138 | + skb = event->tx_ring->tx_buf->skb; |
| 139 | + devlink_fmsg_obj_nest_start(fmsg); |
| 140 | + ICE_DEVLINK_FMSG_PUT_FIELD(fmsg, event, head); |
| 141 | + ICE_DEVLINK_FMSG_PUT_FIELD(fmsg, event, intr); |
| 142 | + ICE_DEVLINK_FMSG_PUT_FIELD(fmsg, event, vsi_num); |
| 143 | + ICE_DEVLINK_FMSG_PUT_FIELD(fmsg, event, queue); |
| 144 | + ICE_DEVLINK_FMSG_PUT_FIELD(fmsg, event, next_to_clean); |
| 145 | + ICE_DEVLINK_FMSG_PUT_FIELD(fmsg, event, next_to_use); |
| 146 | + devlink_fmsg_put(fmsg, "irq-mapping", event->tx_ring->q_vector->name); |
| 147 | + ice_fmsg_put_ptr(fmsg, "desc-ptr", event->tx_ring->desc); |
| 148 | + ice_fmsg_put_ptr(fmsg, "dma-ptr", (void *)(long)event->tx_ring->dma); |
| 149 | + ice_fmsg_put_ptr(fmsg, "skb-ptr", skb); |
| 150 | + devlink_fmsg_binary_pair_put(fmsg, "desc", event->tx_ring->desc, |
| 151 | + event->tx_ring->count * sizeof(struct ice_tx_desc)); |
| 152 | + devlink_fmsg_dump_skb(fmsg, skb); |
| 153 | + devlink_fmsg_obj_nest_end(fmsg); |
| 154 | + |
| 155 | + return 0; |
| 156 | +} |
| 157 | + |
| 158 | +void ice_prep_tx_hang_report(struct ice_pf *pf, struct ice_tx_ring *tx_ring, |
| 159 | + u16 vsi_num, u32 head, u32 intr) |
| 160 | +{ |
| 161 | + struct ice_health_tx_hang_buf *buf = &pf->health_reporters.tx_hang_buf; |
| 162 | + |
| 163 | + buf->tx_ring = tx_ring; |
| 164 | + buf->vsi_num = vsi_num; |
| 165 | + buf->head = head; |
| 166 | + buf->intr = intr; |
| 167 | +} |
| 168 | + |
| 169 | +void ice_report_tx_hang(struct ice_pf *pf) |
| 170 | +{ |
| 171 | + struct ice_health_tx_hang_buf *buf = &pf->health_reporters.tx_hang_buf; |
| 172 | + struct ice_tx_ring *tx_ring = buf->tx_ring; |
| 173 | + |
| 174 | + struct ice_tx_hang_event ev = { |
| 175 | + .head = buf->head, |
| 176 | + .intr = buf->intr, |
| 177 | + .vsi_num = buf->vsi_num, |
| 178 | + .queue = tx_ring->q_index, |
| 179 | + .next_to_clean = tx_ring->next_to_clean, |
| 180 | + .next_to_use = tx_ring->next_to_use, |
| 181 | + .tx_ring = tx_ring, |
| 182 | + }; |
| 183 | + |
| 184 | + ice_devlink_health_report(pf->health_reporters.tx_hang, "Tx hang", &ev); |
| 185 | +} |
| 186 | + |
| 187 | +static struct devlink_health_reporter * |
| 188 | +ice_init_devlink_rep(struct ice_pf *pf, |
| 189 | + const struct devlink_health_reporter_ops *ops) |
| 190 | +{ |
| 191 | + struct devlink *devlink = priv_to_devlink(pf); |
| 192 | + struct devlink_health_reporter *rep; |
| 193 | + const u64 graceful_period = 0; |
| 194 | + |
| 195 | + rep = devl_health_reporter_create(devlink, ops, graceful_period, pf); |
| 196 | + if (IS_ERR(rep)) { |
| 197 | + struct device *dev = ice_pf_to_dev(pf); |
| 198 | + |
| 199 | + dev_err(dev, "failed to create devlink %s health report er", |
| 200 | + ops->name); |
| 201 | + return NULL; |
| 202 | + } |
| 203 | + return rep; |
| 204 | +} |
| 205 | + |
| 206 | +#define ICE_DEFINE_HEALTH_REPORTER_OPS(_name) \ |
| 207 | + static const struct devlink_health_reporter_ops ice_ ## _name ## _reporter_ops = { \ |
| 208 | + .name = #_name, \ |
| 209 | + .dump = ice_ ## _name ## _reporter_dump, \ |
| 210 | +} |
| 211 | + |
| 212 | +ICE_DEFINE_HEALTH_REPORTER_OPS(mdd); |
| 213 | +ICE_DEFINE_HEALTH_REPORTER_OPS(tx_hang); |
| 214 | + |
| 215 | +/** |
| 216 | + * ice_health_init - allocate and init all ice devlink health reporters and |
| 217 | + * accompanied data |
| 218 | + * |
| 219 | + * @pf: PF struct |
| 220 | + */ |
| 221 | +void ice_health_init(struct ice_pf *pf) |
| 222 | +{ |
| 223 | + struct ice_health *reps = &pf->health_reporters; |
| 224 | + |
| 225 | + reps->mdd = ice_init_devlink_rep(pf, &ice_mdd_reporter_ops); |
| 226 | + reps->tx_hang = ice_init_devlink_rep(pf, &ice_tx_hang_reporter_ops); |
| 227 | +} |
| 228 | + |
| 229 | +/** |
| 230 | + * ice_deinit_devl_reporter - destroy given devlink health reporter |
| 231 | + * @reporter: reporter to destroy |
| 232 | + */ |
| 233 | +static void ice_deinit_devl_reporter(struct devlink_health_reporter *reporter) |
| 234 | +{ |
| 235 | + if (reporter) |
| 236 | + devl_health_reporter_destroy(reporter); |
| 237 | +} |
| 238 | + |
| 239 | +/** |
| 240 | + * ice_health_deinit - deallocate all ice devlink health reporters and |
| 241 | + * accompanied data |
| 242 | + * |
| 243 | + * @pf: PF struct |
| 244 | + */ |
| 245 | +void ice_health_deinit(struct ice_pf *pf) |
| 246 | +{ |
| 247 | + ice_deinit_devl_reporter(pf->health_reporters.mdd); |
| 248 | + ice_deinit_devl_reporter(pf->health_reporters.tx_hang); |
| 249 | +} |
| 250 | + |
| 251 | +static |
| 252 | +void ice_health_assign_healthy_state(struct devlink_health_reporter *reporter) |
| 253 | +{ |
| 254 | + if (reporter) |
| 255 | + devlink_health_reporter_state_update(reporter, |
| 256 | + DEVLINK_HEALTH_REPORTER_STATE_HEALTHY); |
| 257 | +} |
| 258 | + |
| 259 | +/** |
| 260 | + * ice_health_clear - clear devlink health issues after a reset |
| 261 | + * @pf: the PF device structure |
| 262 | + * |
| 263 | + * Mark the PF in healthy state again after a reset has completed. |
| 264 | + */ |
| 265 | +void ice_health_clear(struct ice_pf *pf) |
| 266 | +{ |
| 267 | + ice_health_assign_healthy_state(pf->health_reporters.mdd); |
| 268 | + ice_health_assign_healthy_state(pf->health_reporters.tx_hang); |
| 269 | +} |
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