diff options
Diffstat (limited to 'drivers/net/ethernet/microsoft/mana/mana_en.c')
| -rw-r--r-- | drivers/net/ethernet/microsoft/mana/mana_en.c | 105 |
1 files changed, 104 insertions, 1 deletions
diff --git a/drivers/net/ethernet/microsoft/mana/mana_en.c b/drivers/net/ethernet/microsoft/mana/mana_en.c index c47266d1c7c2..57ac732e7707 100644 --- a/drivers/net/ethernet/microsoft/mana/mana_en.c +++ b/drivers/net/ethernet/microsoft/mana/mana_en.c @@ -3,6 +3,7 @@ #include <uapi/linux/bpf.h> +#include <linux/debugfs.h> #include <linux/inetdevice.h> #include <linux/etherdevice.h> #include <linux/ethtool.h> @@ -30,6 +31,21 @@ static void mana_adev_idx_free(int idx) ida_free(&mana_adev_ida, idx); } +static ssize_t mana_dbg_q_read(struct file *filp, char __user *buf, size_t count, + loff_t *pos) +{ + struct gdma_queue *gdma_q = filp->private_data; + + return simple_read_from_buffer(buf, count, pos, gdma_q->queue_mem_ptr, + gdma_q->queue_size); +} + +static const struct file_operations mana_dbg_q_fops = { + .owner = THIS_MODULE, + .open = simple_open, + .read = mana_dbg_q_read, +}; + /* Microsoft Azure Network Adapter (MANA) functions */ static int mana_open(struct net_device *ndev) @@ -721,6 +737,13 @@ static const struct net_device_ops mana_devops = { static void mana_cleanup_port_context(struct mana_port_context *apc) { + /* + * at this point all dir/files under the vport directory + * are already cleaned up. + * We are sure the apc->mana_port_debugfs remove will not + * cause any freed memory access issues + */ + debugfs_remove(apc->mana_port_debugfs); kfree(apc->rxqs); apc->rxqs = NULL; } @@ -943,6 +966,8 @@ static int mana_query_device_cfg(struct mana_context *ac, u32 proto_major_ver, else gc->adapter_mtu = ETH_FRAME_LEN; + debugfs_create_u16("adapter-MTU", 0400, gc->mana_pci_debugfs, &gc->adapter_mtu); + return 0; } @@ -1228,6 +1253,8 @@ static void mana_destroy_eq(struct mana_context *ac) if (!ac->eqs) return; + debugfs_remove_recursive(ac->mana_eqs_debugfs); + for (i = 0; i < gc->max_num_queues; i++) { eq = ac->eqs[i].eq; if (!eq) @@ -1240,6 +1267,18 @@ static void mana_destroy_eq(struct mana_context *ac) ac->eqs = NULL; } +static void mana_create_eq_debugfs(struct mana_context *ac, int i) +{ + struct mana_eq eq = ac->eqs[i]; + char eqnum[32]; + + sprintf(eqnum, "eq%d", i); + eq.mana_eq_debugfs = debugfs_create_dir(eqnum, ac->mana_eqs_debugfs); + debugfs_create_u32("head", 0400, eq.mana_eq_debugfs, &eq.eq->head); + debugfs_create_u32("tail", 0400, eq.mana_eq_debugfs, &eq.eq->tail); + debugfs_create_file("eq_dump", 0400, eq.mana_eq_debugfs, eq.eq, &mana_dbg_q_fops); +} + static int mana_create_eq(struct mana_context *ac) { struct gdma_dev *gd = ac->gdma_dev; @@ -1260,11 +1299,14 @@ static int mana_create_eq(struct mana_context *ac) spec.eq.context = ac->eqs; spec.eq.log2_throttle_limit = LOG2_EQ_THROTTLE; + ac->mana_eqs_debugfs = debugfs_create_dir("EQs", gc->mana_pci_debugfs); + for (i = 0; i < gc->max_num_queues; i++) { spec.eq.msix_index = (i + 1) % gc->num_msix_usable; err = mana_gd_create_mana_eq(gd, &spec, &ac->eqs[i].eq); if (err) goto out; + mana_create_eq_debugfs(ac, i); } return 0; @@ -1871,6 +1913,8 @@ static void mana_destroy_txq(struct mana_port_context *apc) return; for (i = 0; i < apc->num_queues; i++) { + debugfs_remove_recursive(apc->tx_qp[i].mana_tx_debugfs); + napi = &apc->tx_qp[i].tx_cq.napi; if (apc->tx_qp[i].txq.napi_initialized) { napi_synchronize(napi); @@ -1889,6 +1933,31 @@ static void mana_destroy_txq(struct mana_port_context *apc) apc->tx_qp = NULL; } +static void mana_create_txq_debugfs(struct mana_port_context *apc, int idx) +{ + struct mana_tx_qp *tx_qp = &apc->tx_qp[idx]; + char qnum[32]; + + sprintf(qnum, "TX-%d", idx); + tx_qp->mana_tx_debugfs = debugfs_create_dir(qnum, apc->mana_port_debugfs); + debugfs_create_u32("sq_head", 0400, tx_qp->mana_tx_debugfs, + &tx_qp->txq.gdma_sq->head); + debugfs_create_u32("sq_tail", 0400, tx_qp->mana_tx_debugfs, + &tx_qp->txq.gdma_sq->tail); + debugfs_create_u32("sq_pend_skb_qlen", 0400, tx_qp->mana_tx_debugfs, + &tx_qp->txq.pending_skbs.qlen); + debugfs_create_u32("cq_head", 0400, tx_qp->mana_tx_debugfs, + &tx_qp->tx_cq.gdma_cq->head); + debugfs_create_u32("cq_tail", 0400, tx_qp->mana_tx_debugfs, + &tx_qp->tx_cq.gdma_cq->tail); + debugfs_create_u32("cq_budget", 0400, tx_qp->mana_tx_debugfs, + &tx_qp->tx_cq.budget); + debugfs_create_file("txq_dump", 0400, tx_qp->mana_tx_debugfs, + tx_qp->txq.gdma_sq, &mana_dbg_q_fops); + debugfs_create_file("cq_dump", 0400, tx_qp->mana_tx_debugfs, + tx_qp->tx_cq.gdma_cq, &mana_dbg_q_fops); +} + static int mana_create_txq(struct mana_port_context *apc, struct net_device *net) { @@ -2000,6 +2069,8 @@ static int mana_create_txq(struct mana_port_context *apc, gc->cq_table[cq->gdma_id] = cq->gdma_cq; + mana_create_txq_debugfs(apc, i); + netif_napi_add_tx(net, &cq->napi, mana_poll); napi_enable(&cq->napi); txq->napi_initialized = true; @@ -2027,6 +2098,8 @@ static void mana_destroy_rxq(struct mana_port_context *apc, if (!rxq) return; + debugfs_remove_recursive(rxq->mana_rx_debugfs); + napi = &rxq->rx_cq.napi; if (napi_initialized) { @@ -2308,6 +2381,28 @@ out: return NULL; } +static void mana_create_rxq_debugfs(struct mana_port_context *apc, int idx) +{ + struct mana_rxq *rxq; + char qnum[32]; + + rxq = apc->rxqs[idx]; + + sprintf(qnum, "RX-%d", idx); + rxq->mana_rx_debugfs = debugfs_create_dir(qnum, apc->mana_port_debugfs); + debugfs_create_u32("rq_head", 0400, rxq->mana_rx_debugfs, &rxq->gdma_rq->head); + debugfs_create_u32("rq_tail", 0400, rxq->mana_rx_debugfs, &rxq->gdma_rq->tail); + debugfs_create_u32("rq_nbuf", 0400, rxq->mana_rx_debugfs, &rxq->num_rx_buf); + debugfs_create_u32("cq_head", 0400, rxq->mana_rx_debugfs, + &rxq->rx_cq.gdma_cq->head); + debugfs_create_u32("cq_tail", 0400, rxq->mana_rx_debugfs, + &rxq->rx_cq.gdma_cq->tail); + debugfs_create_u32("cq_budget", 0400, rxq->mana_rx_debugfs, &rxq->rx_cq.budget); + debugfs_create_file("rxq_dump", 0400, rxq->mana_rx_debugfs, rxq->gdma_rq, &mana_dbg_q_fops); + debugfs_create_file("cq_dump", 0400, rxq->mana_rx_debugfs, rxq->rx_cq.gdma_cq, + &mana_dbg_q_fops); +} + static int mana_add_rx_queues(struct mana_port_context *apc, struct net_device *ndev) { @@ -2326,6 +2421,8 @@ static int mana_add_rx_queues(struct mana_port_context *apc, u64_stats_init(&rxq->stats.syncp); apc->rxqs[i] = rxq; + + mana_create_rxq_debugfs(apc, i); } apc->default_rxobj = apc->rxqs[0]->rxobj; @@ -2518,14 +2615,19 @@ void mana_query_gf_stats(struct mana_port_context *apc) static int mana_init_port(struct net_device *ndev) { struct mana_port_context *apc = netdev_priv(ndev); + struct gdma_dev *gd = apc->ac->gdma_dev; u32 max_txq, max_rxq, max_queues; int port_idx = apc->port_idx; + struct gdma_context *gc; + char vport[32]; int err; err = mana_init_port_context(apc); if (err) return err; + gc = gd->gdma_context; + err = mana_query_vport_cfg(apc, port_idx, &max_txq, &max_rxq, &apc->indir_table_sz); if (err) { @@ -2542,7 +2644,8 @@ static int mana_init_port(struct net_device *ndev) apc->num_queues = apc->max_queues; eth_hw_addr_set(ndev, apc->mac_addr); - + sprintf(vport, "vport%d", port_idx); + apc->mana_port_debugfs = debugfs_create_dir(vport, gc->mana_pci_debugfs); return 0; reset_apc: |