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Subject[net-next PATCH 3/3] octeontx2-af: Add devlink health reporters for NIX
Date
Add health reporters for RVU NPA block.
Only reporter dump is supported.

Output:
# ./devlink health
pci/0002:01:00.0:
reporter npa
state healthy error 0 recover 0
reporter nix
state healthy error 0 recover 0
# ./devlink health dump show pci/0002:01:00.0 reporter nix
NIX_AF_GENERAL:
Memory Fault on NIX_AQ_INST_S read: 0
Memory Fault on NIX_AQ_RES_S write: 0
AQ Doorbell error: 0
Rx on unmapped PF_FUNC: 0
Rx multicast replication error: 0
Memory fault on NIX_RX_MCE_S read: 0
Memory fault on multicast WQE read: 0
Memory fault on mirror WQE read: 0
Memory fault on mirror pkt write: 0
Memory fault on multicast pkt write: 0
NIX_AF_RAS:
Poisoned data on NIX_AQ_INST_S read: 0
Poisoned data on NIX_AQ_RES_S write: 0
Poisoned data on HW context read: 0
Poisoned data on packet read from mirror buffer: 0
Poisoned data on packet read from mcast buffer: 0
Poisoned data on WQE read from mirror buffer: 0
Poisoned data on WQE read from multicast buffer: 0
Poisoned data on NIX_RX_MCE_S read: 0
NIX_AF_RVU:
Unmap Slot Error: 0

Signed-off-by: Sunil Kovvuri Goutham <sgoutham@marvell.com>
Signed-off-by: Jerin Jacob <jerinj@marvell.com>
Signed-off-by: George Cherian <george.cherian@marvell.com>
---
.../marvell/octeontx2/af/rvu_devlink.c | 376 +++++++++++++++++-
.../marvell/octeontx2/af/rvu_devlink.h | 24 ++
.../marvell/octeontx2/af/rvu_struct.h | 10 +
3 files changed, 409 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.c
index 946e751fb544..c2dd2026c7da 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.c
@@ -14,6 +14,7 @@
#define DRV_NAME "octeontx2-af"

void rvu_npa_unregister_interrupts(struct rvu *rvu);
+void rvu_nix_unregister_interrupts(struct rvu *rvu);

int rvu_report_pair_start(struct devlink_fmsg *fmsg, const char *name)
{
@@ -37,6 +38,373 @@ int rvu_report_pair_end(struct devlink_fmsg *fmsg)
return devlink_fmsg_pair_nest_end(fmsg);
}

+irqreturn_t rvu_nix_af_rvu_intr_handler(int irq, void *rvu_irq)
+{
+ struct rvu_nix_event_cnt *nix_event_count;
+ struct rvu_devlink *rvu_dl = rvu_irq;
+ struct rvu *rvu;
+ int blkaddr;
+ u64 intr;
+
+ rvu = rvu_dl->rvu;
+ blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, 0);
+ if (blkaddr < 0)
+ return IRQ_NONE;
+
+ nix_event_count = rvu_dl->nix_event_cnt;
+ intr = rvu_read64(rvu, blkaddr, NIX_AF_RVU_INT);
+
+ if (intr & BIT_ULL(0))
+ nix_event_count->unmap_slot_count++;
+
+ /* Clear interrupts */
+ rvu_write64(rvu, blkaddr, NIX_AF_RVU_INT, intr);
+ return IRQ_HANDLED;
+}
+
+irqreturn_t rvu_nix_af_err_intr_handler(int irq, void *rvu_irq)
+{
+ struct rvu_nix_event_cnt *nix_event_count;
+ struct rvu_devlink *rvu_dl = rvu_irq;
+ struct rvu *rvu;
+ int blkaddr;
+ u64 intr;
+
+ rvu = rvu_dl->rvu;
+ blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, 0);
+ if (blkaddr < 0)
+ return IRQ_NONE;
+
+ nix_event_count = rvu_dl->nix_event_cnt;
+ intr = rvu_read64(rvu, blkaddr, NIX_AF_ERR_INT);
+
+ if (intr & BIT_ULL(14))
+ nix_event_count->aq_inst_count++;
+ if (intr & BIT_ULL(13))
+ nix_event_count->aq_res_count++;
+ if (intr & BIT_ULL(12))
+ nix_event_count->aq_db_count++;
+ if (intr & BIT_ULL(6))
+ nix_event_count->rx_on_unmap_pf_count++;
+ if (intr & BIT_ULL(5))
+ nix_event_count->rx_mcast_repl_count++;
+ if (intr & BIT_ULL(4))
+ nix_event_count->rx_mcast_memfault_count++;
+ if (intr & BIT_ULL(3))
+ nix_event_count->rx_mcast_wqe_memfault_count++;
+ if (intr & BIT_ULL(2))
+ nix_event_count->rx_mirror_wqe_memfault_count++;
+ if (intr & BIT_ULL(1))
+ nix_event_count->rx_mirror_pktw_memfault_count++;
+ if (intr & BIT_ULL(0))
+ nix_event_count->rx_mcast_pktw_memfault_count++;
+
+ /* Clear interrupts */
+ rvu_write64(rvu, blkaddr, NIX_AF_ERR_INT, intr);
+ return IRQ_HANDLED;
+}
+
+irqreturn_t rvu_nix_af_ras_intr_handler(int irq, void *rvu_irq)
+{
+ struct rvu_nix_event_cnt *nix_event_count;
+ struct rvu_devlink *rvu_dl = rvu_irq;
+ struct rvu *rvu;
+ int blkaddr;
+ u64 intr;
+
+ rvu = rvu_dl->rvu;
+ blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, 0);
+ if (blkaddr < 0)
+ return IRQ_NONE;
+
+ nix_event_count = rvu_dl->nix_event_cnt;
+ intr = rvu_read64(rvu, blkaddr, NIX_AF_RAS);
+
+ if (intr & BIT_ULL(34))
+ nix_event_count->poison_aq_inst_count++;
+ if (intr & BIT_ULL(33))
+ nix_event_count->poison_aq_res_count++;
+ if (intr & BIT_ULL(32))
+ nix_event_count->poison_aq_cxt_count++;
+ if (intr & BIT_ULL(4))
+ nix_event_count->rx_mirror_data_poison_count++;
+ if (intr & BIT_ULL(3))
+ nix_event_count->rx_mcast_data_poison_count++;
+ if (intr & BIT_ULL(2))
+ nix_event_count->rx_mirror_wqe_poison_count++;
+ if (intr & BIT_ULL(1))
+ nix_event_count->rx_mcast_wqe_poison_count++;
+ if (intr & BIT_ULL(0))
+ nix_event_count->rx_mce_poison_count++;
+
+ /* Clear interrupts */
+ rvu_write64(rvu, blkaddr, NIX_AF_RAS, intr);
+ return IRQ_HANDLED;
+}
+
+static bool rvu_nix_af_request_irq(struct rvu *rvu, int offset,
+ const char *name, irq_handler_t fn)
+{
+ struct rvu_devlink *rvu_dl = rvu->rvu_dl;
+ int rc;
+
+ WARN_ON(rvu->irq_allocated[offset]);
+ rvu->irq_allocated[offset] = false;
+ sprintf(&rvu->irq_name[offset * NAME_SIZE], name);
+ rc = request_irq(pci_irq_vector(rvu->pdev, offset), fn, 0,
+ &rvu->irq_name[offset * NAME_SIZE], rvu_dl);
+ if (rc)
+ dev_warn(rvu->dev, "Failed to register %s irq\n", name);
+ else
+ rvu->irq_allocated[offset] = true;
+
+ return rvu->irq_allocated[offset];
+}
+
+static int rvu_nix_blk_register_interrupts(struct rvu *rvu,
+ int blkaddr)
+{
+ int base;
+ bool rc;
+
+ /* Get NIX AF MSIX vectors offset. */
+ base = rvu_read64(rvu, blkaddr, NIX_PRIV_AF_INT_CFG) & 0x3ff;
+ if (!base) {
+ dev_warn(rvu->dev,
+ "Failed to get NIX%d NIX_AF_INT vector offsets\n",
+ blkaddr - BLKADDR_NIX0);
+ return 0;
+ }
+ /* Register and enable NIX_AF_RVU_INT interrupt */
+ rc = rvu_nix_af_request_irq(rvu, base + NIX_AF_INT_VEC_RVU,
+ "NIX_AF_RVU_INT",
+ rvu_nix_af_rvu_intr_handler);
+ if (!rc)
+ goto err;
+ rvu_write64(rvu, blkaddr, NIX_AF_RVU_INT_ENA_W1S, ~0ULL);
+
+ /* Register and enable NIX_AF_ERR_INT interrupt */
+ rc = rvu_nix_af_request_irq(rvu, base + NIX_AF_INT_VEC_AF_ERR,
+ "NIX_AF_ERR_INT",
+ rvu_nix_af_err_intr_handler);
+ if (!rc)
+ goto err;
+ rvu_write64(rvu, blkaddr, NIX_AF_ERR_INT_ENA_W1S, ~0ULL);
+
+ /* Register and enable NIX_AF_RAS interrupt */
+ rc = rvu_nix_af_request_irq(rvu, base + NIX_AF_INT_VEC_POISON,
+ "NIX_AF_RAS",
+ rvu_nix_af_ras_intr_handler);
+ if (!rc)
+ goto err;
+ rvu_write64(rvu, blkaddr, NIX_AF_RAS_ENA_W1S, ~0ULL);
+
+ return 0;
+err:
+ rvu_nix_unregister_interrupts(rvu);
+ return -1;
+}
+
+int rvu_nix_register_interrupts(struct rvu *rvu)
+{
+ int blkaddr = 0;
+
+ blkaddr = rvu_get_blkaddr(rvu, blkaddr, 0);
+ if (blkaddr < 0)
+ return blkaddr;
+
+ rvu_nix_blk_register_interrupts(rvu, blkaddr);
+
+ return 0;
+}
+
+static void rvu_nix_blk_unregister_interrupts(struct rvu *rvu,
+ int blkaddr)
+{
+ struct rvu_devlink *rvu_dl = rvu->rvu_dl;
+ int offs, i;
+
+ offs = rvu_read64(rvu, blkaddr, NIX_PRIV_AF_INT_CFG) & 0x3ff;
+ if (!offs)
+ return;
+
+ rvu_write64(rvu, blkaddr, NIX_AF_RVU_INT_ENA_W1C, ~0ULL);
+ rvu_write64(rvu, blkaddr, NIX_AF_ERR_INT_ENA_W1C, ~0ULL);
+ rvu_write64(rvu, blkaddr, NIX_AF_RAS_ENA_W1C, ~0ULL);
+
+ if (rvu->irq_allocated[offs + NIX_AF_INT_VEC_RVU]) {
+ free_irq(pci_irq_vector(rvu->pdev, offs + NIX_AF_INT_VEC_RVU),
+ rvu_dl);
+ rvu->irq_allocated[offs + NIX_AF_INT_VEC_RVU] = false;
+ }
+
+ for (i = NIX_AF_INT_VEC_AF_ERR; i < NIX_AF_INT_VEC_CNT; i++)
+ if (rvu->irq_allocated[offs + i]) {
+ free_irq(pci_irq_vector(rvu->pdev, offs + i), rvu_dl);
+ rvu->irq_allocated[offs + i] = false;
+ }
+}
+
+void rvu_nix_unregister_interrupts(struct rvu *rvu)
+{
+ int blkaddr = 0;
+
+ blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, 0);
+ if (blkaddr < 0)
+ return;
+
+ rvu_nix_blk_unregister_interrupts(rvu, blkaddr);
+}
+
+static int rvu_nix_report_show(struct devlink_fmsg *fmsg, struct rvu *rvu)
+{
+ struct rvu_devlink *rvu_dl = rvu->rvu_dl;
+ struct rvu_nix_event_cnt *nix_event_count = rvu_dl->nix_event_cnt;
+ int err;
+
+ err = rvu_report_pair_start(fmsg, "NIX_AF_GENERAL");
+ if (err)
+ return err;
+ err = devlink_fmsg_u64_pair_put(fmsg, "\tMemory Fault on NIX_AQ_INST_S read",
+ nix_event_count->aq_inst_count);
+ if (err)
+ return err;
+ err = devlink_fmsg_u64_pair_put(fmsg, "\n\tMemory Fault on NIX_AQ_RES_S write",
+ nix_event_count->aq_res_count);
+ if (err)
+ return err;
+ err = devlink_fmsg_u64_pair_put(fmsg, "\n\tAQ Doorbell error",
+ nix_event_count->aq_db_count);
+ if (err)
+ return err;
+ err = devlink_fmsg_u64_pair_put(fmsg, "\n\tRx on unmapped PF_FUNC",
+ nix_event_count->rx_on_unmap_pf_count);
+ if (err)
+ return err;
+ err = devlink_fmsg_u64_pair_put(fmsg, "\n\tRx multicast replication error",
+ nix_event_count->rx_mcast_repl_count);
+ if (err)
+ return err;
+ err = devlink_fmsg_u64_pair_put(fmsg, "\n\tMemory fault on NIX_RX_MCE_S read",
+ nix_event_count->rx_mcast_memfault_count);
+ if (err)
+ return err;
+ err = devlink_fmsg_u64_pair_put(fmsg, "\n\tMemory fault on multicast WQE read",
+ nix_event_count->rx_mcast_wqe_memfault_count);
+ if (err)
+ return err;
+ err = devlink_fmsg_u64_pair_put(fmsg, "\n\tMemory fault on mirror WQE read",
+ nix_event_count->rx_mirror_wqe_memfault_count);
+ if (err)
+ return err;
+ err = devlink_fmsg_u64_pair_put(fmsg, "\n\tMemory fault on mirror pkt write",
+ nix_event_count->rx_mirror_pktw_memfault_count);
+ if (err)
+ return err;
+ err = devlink_fmsg_u64_pair_put(fmsg, "\n\tMemory fault on multicast pkt write",
+ nix_event_count->rx_mcast_pktw_memfault_count);
+ if (err)
+ return err;
+ err = rvu_report_pair_end(fmsg);
+ if (err)
+ return err;
+ err = rvu_report_pair_start(fmsg, "NIX_AF_RAS");
+ if (err)
+ return err;
+ err = devlink_fmsg_u64_pair_put(fmsg, "\tPoisoned data on NIX_AQ_INST_S read",
+ nix_event_count->poison_aq_inst_count);
+ if (err)
+ return err;
+ err = devlink_fmsg_u64_pair_put(fmsg, "\n\tPoisoned data on NIX_AQ_RES_S write",
+ nix_event_count->poison_aq_res_count);
+ if (err)
+ return err;
+ err = devlink_fmsg_u64_pair_put(fmsg, "\n\tPoisoned data on HW context read",
+ nix_event_count->poison_aq_cxt_count);
+ if (err)
+ return err;
+ err = devlink_fmsg_u64_pair_put(fmsg, "\n\tPoisoned data on packet read from mirror buffer",
+ nix_event_count->rx_mirror_data_poison_count);
+ if (err)
+ return err;
+ err = devlink_fmsg_u64_pair_put(fmsg, "\n\tPoisoned data on packet read from mcast buffer",
+ nix_event_count->rx_mcast_data_poison_count);
+ if (err)
+ return err;
+ err = devlink_fmsg_u64_pair_put(fmsg, "\n\tPoisoned data on WQE read from mirror buffer",
+ nix_event_count->rx_mirror_wqe_poison_count);
+ if (err)
+ return err;
+ err = devlink_fmsg_u64_pair_put(fmsg, "\n\tPoisoned data on WQE read from multicast buffer",
+ nix_event_count->rx_mcast_wqe_poison_count);
+ if (err)
+ return err;
+ err = devlink_fmsg_u64_pair_put(fmsg, "\n\tPoisoned data on NIX_RX_MCE_S read",
+ nix_event_count->rx_mce_poison_count);
+ if (err)
+ return err;
+ err = rvu_report_pair_end(fmsg);
+ if (err)
+ return err;
+ err = rvu_report_pair_start(fmsg, "NIX_AF_RVU");
+ if (err)
+ return err;
+ err = devlink_fmsg_u64_pair_put(fmsg, "\tUnmap Slot Error",
+ nix_event_count->unmap_slot_count);
+ if (err)
+ return err;
+ err = rvu_report_pair_end(fmsg);
+ if (err)
+ return err;
+ return 0;
+}
+
+static int rvu_nix_reporter_dump(struct devlink_health_reporter *reporter,
+ struct devlink_fmsg *fmsg, void *ctx,
+ struct netlink_ext_ack *netlink_extack)
+{
+ struct rvu *rvu = devlink_health_reporter_priv(reporter);
+
+ return rvu_nix_report_show(fmsg, rvu);
+}
+
+static const struct devlink_health_reporter_ops rvu_nix_fault_reporter_ops = {
+ .name = "nix",
+ .dump = rvu_nix_reporter_dump,
+};
+
+int rvu_nix_health_reporters_create(struct rvu_devlink *rvu_dl)
+{
+ struct devlink_health_reporter *rvu_nix_health_reporter;
+ struct rvu_nix_event_cnt *nix_event_count;
+ struct rvu *rvu = rvu_dl->rvu;
+
+ nix_event_count = kzalloc(sizeof(*nix_event_count), GFP_KERNEL);
+ if (!nix_event_count)
+ return -ENOMEM;
+
+ rvu_dl->nix_event_cnt = nix_event_count;
+ rvu_nix_health_reporter = devlink_health_reporter_create(rvu_dl->dl,
+ &rvu_nix_fault_reporter_ops,
+ 0, rvu);
+ if (IS_ERR(rvu_nix_health_reporter)) {
+ dev_warn(rvu->dev, "Failed to create nix reporter, err = %ld\n",
+ PTR_ERR(rvu_nix_health_reporter));
+ return PTR_ERR(rvu_nix_health_reporter);
+ }
+
+ rvu_dl->rvu_nix_health_reporter = rvu_nix_health_reporter;
+ return 0;
+}
+
+void rvu_nix_health_reporters_destroy(struct rvu_devlink *rvu_dl)
+{
+ if (!rvu_dl->rvu_nix_health_reporter)
+ return;
+
+ devlink_health_reporter_destroy(rvu_dl->rvu_nix_health_reporter);
+}
+
static irqreturn_t rvu_npa_af_rvu_intr_handler(int irq, void *rvu_irq)
{
struct rvu_npa_event_cnt *npa_event_count;
@@ -420,12 +788,17 @@ static void rvu_npa_health_reporters_destroy(struct rvu_devlink *rvu_dl)
static int rvu_health_reporters_create(struct rvu *rvu)
{
struct rvu_devlink *rvu_dl;
+ int err;

if (!rvu->rvu_dl)
return -EINVAL;

rvu_dl = rvu->rvu_dl;
- return rvu_npa_health_reporters_create(rvu_dl);
+ err = rvu_npa_health_reporters_create(rvu_dl);
+ if (err)
+ return err;
+
+ return rvu_nix_health_reporters_create(rvu_dl);
}

static void rvu_health_reporters_destroy(struct rvu *rvu)
@@ -437,6 +810,7 @@ static void rvu_health_reporters_destroy(struct rvu *rvu)

rvu_dl = rvu->rvu_dl;
rvu_npa_health_reporters_destroy(rvu_dl);
+ rvu_nix_health_reporters_destroy(rvu_dl);
}

static int rvu_devlink_info_get(struct devlink *devlink, struct devlink_info_req *req,
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.h
index b3ce1a8fff57..15724ad2ed44 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.h
@@ -29,11 +29,35 @@ struct rvu_npa_event_cnt {
unsigned long poison_aq_cxt_count;
};

+struct rvu_nix_event_cnt {
+ unsigned long unmap_slot_count;
+ unsigned long aq_inst_count;
+ unsigned long aq_res_count;
+ unsigned long aq_db_count;
+ unsigned long rx_on_unmap_pf_count;
+ unsigned long rx_mcast_repl_count;
+ unsigned long rx_mcast_memfault_count;
+ unsigned long rx_mcast_wqe_memfault_count;
+ unsigned long rx_mirror_wqe_memfault_count;
+ unsigned long rx_mirror_pktw_memfault_count;
+ unsigned long rx_mcast_pktw_memfault_count;
+ unsigned long poison_aq_inst_count;
+ unsigned long poison_aq_res_count;
+ unsigned long poison_aq_cxt_count;
+ unsigned long rx_mirror_data_poison_count;
+ unsigned long rx_mcast_data_poison_count;
+ unsigned long rx_mirror_wqe_poison_count;
+ unsigned long rx_mcast_wqe_poison_count;
+ unsigned long rx_mce_poison_count;
+};
+
struct rvu_devlink {
struct devlink *dl;
struct rvu *rvu;
struct devlink_health_reporter *rvu_npa_health_reporter;
struct rvu_npa_event_cnt *npa_event_cnt;
+ struct devlink_health_reporter *rvu_nix_health_reporter;
+ struct rvu_nix_event_cnt *nix_event_cnt;
};

/* Devlink APIs */
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_struct.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu_struct.h
index 995add5d8bff..b5944199faf5 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_struct.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_struct.h
@@ -74,6 +74,16 @@ enum npa_af_int_vec_e {
NPA_AF_INT_VEC_CNT = 0x5,
};

+/* NIX Admin function Interrupt Vector Enumeration */
+enum nix_af_int_vec_e {
+ NIX_AF_INT_VEC_RVU = 0x0,
+ NIX_AF_INT_VEC_GEN = 0x1,
+ NIX_AF_INT_VEC_AQ_DONE = 0x2,
+ NIX_AF_INT_VEC_AF_ERR = 0x3,
+ NIX_AF_INT_VEC_POISON = 0x4,
+ NIX_AF_INT_VEC_CNT = 0x5,
+};
+
/**
* RVU PF Interrupt Vector Enumeration
*/
--
2.25.1
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