Merge branch 'dpaa2-eth-add-QBMAN-statistics'
Ioana Ciornei says: ==================== dpaa2-eth: add QBMAN statistics This patch set adds ethtool statistics for pending frames/bytes in Rx/Tx conf FQs and number of buffers in pool. The first patch adds support for the query APIs in the DPIO driver while the latter actually exposes the statistics through ethtool. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>hifive-unleashed-5.1
David S. Miller
commit
8239d57904
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@ -48,6 +48,12 @@ static char dpaa2_ethtool_extras[][ETH_GSTRING_LEN] = {
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"[drv] xdp drop",
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"[drv] xdp tx",
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"[drv] xdp tx errors",
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/* FQ stats */
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"[qbman] rx pending frames",
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"[qbman] rx pending bytes",
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"[qbman] tx conf pending frames",
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"[qbman] tx conf pending bytes",
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"[qbman] buffer count",
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};
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#define DPAA2_ETH_NUM_EXTRA_STATS ARRAY_SIZE(dpaa2_ethtool_extras)
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@ -177,6 +183,10 @@ static void dpaa2_eth_get_ethtool_stats(struct net_device *net_dev,
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int j, k, err;
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int num_cnt;
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union dpni_statistics dpni_stats;
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u32 fcnt, bcnt;
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u32 fcnt_rx_total = 0, fcnt_tx_total = 0;
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u32 bcnt_rx_total = 0, bcnt_tx_total = 0;
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u32 buf_cnt;
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struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
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struct dpaa2_eth_drv_stats *extras;
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struct dpaa2_eth_ch_stats *ch_stats;
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@ -219,6 +229,37 @@ static void dpaa2_eth_get_ethtool_stats(struct net_device *net_dev,
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for (j = 0; j < sizeof(*ch_stats) / sizeof(__u64); j++)
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*((__u64 *)data + i + j) += *((__u64 *)ch_stats + j);
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}
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i += j;
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for (j = 0; j < priv->num_fqs; j++) {
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/* Print FQ instantaneous counts */
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err = dpaa2_io_query_fq_count(NULL, priv->fq[j].fqid,
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&fcnt, &bcnt);
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if (err) {
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netdev_warn(net_dev, "FQ query error %d", err);
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return;
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}
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if (priv->fq[j].type == DPAA2_TX_CONF_FQ) {
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fcnt_tx_total += fcnt;
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bcnt_tx_total += bcnt;
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} else {
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fcnt_rx_total += fcnt;
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bcnt_rx_total += bcnt;
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}
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}
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*(data + i++) = fcnt_rx_total;
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*(data + i++) = bcnt_rx_total;
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*(data + i++) = fcnt_tx_total;
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*(data + i++) = bcnt_tx_total;
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err = dpaa2_io_query_bp_count(NULL, priv->bpid, &buf_cnt);
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if (err) {
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netdev_warn(net_dev, "Buffer count query error %d\n", err);
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return;
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}
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*(data + i++) = buf_cnt;
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}
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static int prep_eth_rule(struct ethhdr *eth_value, struct ethhdr *eth_mask,
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@ -601,3 +601,71 @@ struct dpaa2_dq *dpaa2_io_store_next(struct dpaa2_io_store *s, int *is_last)
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return ret;
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}
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EXPORT_SYMBOL_GPL(dpaa2_io_store_next);
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/**
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* dpaa2_io_query_fq_count() - Get the frame and byte count for a given fq.
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* @d: the given DPIO object.
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* @fqid: the id of frame queue to be queried.
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* @fcnt: the queried frame count.
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* @bcnt: the queried byte count.
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*
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* Knowing the FQ count at run-time can be useful in debugging situations.
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* The instantaneous frame- and byte-count are hereby returned.
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*
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* Return 0 for a successful query, and negative error code if query fails.
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*/
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int dpaa2_io_query_fq_count(struct dpaa2_io *d, u32 fqid,
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u32 *fcnt, u32 *bcnt)
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{
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struct qbman_fq_query_np_rslt state;
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struct qbman_swp *swp;
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unsigned long irqflags;
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int ret;
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d = service_select(d);
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if (!d)
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return -ENODEV;
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swp = d->swp;
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spin_lock_irqsave(&d->lock_mgmt_cmd, irqflags);
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ret = qbman_fq_query_state(swp, fqid, &state);
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spin_unlock_irqrestore(&d->lock_mgmt_cmd, irqflags);
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if (ret)
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return ret;
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*fcnt = qbman_fq_state_frame_count(&state);
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*bcnt = qbman_fq_state_byte_count(&state);
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return 0;
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}
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EXPORT_SYMBOL_GPL(dpaa2_io_query_fq_count);
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/**
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* dpaa2_io_query_bp_count() - Query the number of buffers currently in a
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* buffer pool.
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* @d: the given DPIO object.
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* @bpid: the index of buffer pool to be queried.
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* @num: the queried number of buffers in the buffer pool.
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*
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* Return 0 for a successful query, and negative error code if query fails.
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*/
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int dpaa2_io_query_bp_count(struct dpaa2_io *d, u16 bpid, u32 *num)
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{
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struct qbman_bp_query_rslt state;
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struct qbman_swp *swp;
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unsigned long irqflags;
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int ret;
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d = service_select(d);
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if (!d)
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return -ENODEV;
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swp = d->swp;
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spin_lock_irqsave(&d->lock_mgmt_cmd, irqflags);
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ret = qbman_bp_query(swp, bpid, &state);
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spin_unlock_irqrestore(&d->lock_mgmt_cmd, irqflags);
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if (ret)
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return ret;
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*num = qbman_bp_info_num_free_bufs(&state);
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return 0;
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}
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EXPORT_SYMBOL_GPL(dpaa2_io_query_bp_count);
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@ -1003,3 +1003,99 @@ int qbman_swp_CDAN_set(struct qbman_swp *s, u16 channelid,
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return 0;
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}
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#define QBMAN_RESPONSE_VERB_MASK 0x7f
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#define QBMAN_FQ_QUERY_NP 0x45
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#define QBMAN_BP_QUERY 0x32
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struct qbman_fq_query_desc {
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u8 verb;
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u8 reserved[3];
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__le32 fqid;
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u8 reserved2[56];
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};
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int qbman_fq_query_state(struct qbman_swp *s, u32 fqid,
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struct qbman_fq_query_np_rslt *r)
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{
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struct qbman_fq_query_desc *p;
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void *resp;
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p = (struct qbman_fq_query_desc *)qbman_swp_mc_start(s);
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if (!p)
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return -EBUSY;
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/* FQID is a 24 bit value */
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p->fqid = cpu_to_le32(fqid & 0x00FFFFFF);
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resp = qbman_swp_mc_complete(s, p, QBMAN_FQ_QUERY_NP);
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if (!resp) {
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pr_err("qbman: Query FQID %d NP fields failed, no response\n",
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fqid);
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return -EIO;
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}
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*r = *(struct qbman_fq_query_np_rslt *)resp;
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/* Decode the outcome */
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WARN_ON((r->verb & QBMAN_RESPONSE_VERB_MASK) != QBMAN_FQ_QUERY_NP);
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/* Determine success or failure */
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if (r->rslt != QBMAN_MC_RSLT_OK) {
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pr_err("Query NP fields of FQID 0x%x failed, code=0x%02x\n",
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p->fqid, r->rslt);
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return -EIO;
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}
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return 0;
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}
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u32 qbman_fq_state_frame_count(const struct qbman_fq_query_np_rslt *r)
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{
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return (le32_to_cpu(r->frm_cnt) & 0x00FFFFFF);
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}
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u32 qbman_fq_state_byte_count(const struct qbman_fq_query_np_rslt *r)
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{
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return le32_to_cpu(r->byte_cnt);
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}
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struct qbman_bp_query_desc {
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u8 verb;
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u8 reserved;
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__le16 bpid;
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u8 reserved2[60];
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};
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int qbman_bp_query(struct qbman_swp *s, u16 bpid,
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struct qbman_bp_query_rslt *r)
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{
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struct qbman_bp_query_desc *p;
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void *resp;
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p = (struct qbman_bp_query_desc *)qbman_swp_mc_start(s);
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if (!p)
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return -EBUSY;
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p->bpid = cpu_to_le16(bpid);
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resp = qbman_swp_mc_complete(s, p, QBMAN_BP_QUERY);
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if (!resp) {
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pr_err("qbman: Query BPID %d fields failed, no response\n",
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bpid);
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return -EIO;
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}
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*r = *(struct qbman_bp_query_rslt *)resp;
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/* Decode the outcome */
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WARN_ON((r->verb & QBMAN_RESPONSE_VERB_MASK) != QBMAN_BP_QUERY);
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/* Determine success or failure */
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if (r->rslt != QBMAN_MC_RSLT_OK) {
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pr_err("Query fields of BPID 0x%x failed, code=0x%02x\n",
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bpid, r->rslt);
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return -EIO;
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}
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return 0;
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}
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u32 qbman_bp_info_num_free_bufs(struct qbman_bp_query_rslt *a)
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{
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return le32_to_cpu(a->fill);
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}
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@ -441,4 +441,62 @@ static inline void *qbman_swp_mc_complete(struct qbman_swp *swp, void *cmd,
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return cmd;
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}
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/* Query APIs */
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struct qbman_fq_query_np_rslt {
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u8 verb;
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u8 rslt;
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u8 st1;
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u8 st2;
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u8 reserved[2];
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__le16 od1_sfdr;
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__le16 od2_sfdr;
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__le16 od3_sfdr;
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__le16 ra1_sfdr;
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__le16 ra2_sfdr;
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__le32 pfdr_hptr;
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__le32 pfdr_tptr;
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__le32 frm_cnt;
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__le32 byte_cnt;
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__le16 ics_surp;
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u8 is;
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u8 reserved2[29];
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};
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int qbman_fq_query_state(struct qbman_swp *s, u32 fqid,
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struct qbman_fq_query_np_rslt *r);
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u32 qbman_fq_state_frame_count(const struct qbman_fq_query_np_rslt *r);
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u32 qbman_fq_state_byte_count(const struct qbman_fq_query_np_rslt *r);
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struct qbman_bp_query_rslt {
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u8 verb;
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u8 rslt;
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u8 reserved[4];
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u8 bdi;
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u8 state;
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__le32 fill;
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__le32 hdotr;
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__le16 swdet;
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__le16 swdxt;
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__le16 hwdet;
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__le16 hwdxt;
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__le16 swset;
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__le16 swsxt;
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__le16 vbpid;
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__le16 icid;
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__le64 bpscn_addr;
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__le64 bpscn_ctx;
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__le16 hw_targ;
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u8 dbe;
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u8 reserved2;
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u8 sdcnt;
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u8 hdcnt;
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u8 sscnt;
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u8 reserved3[9];
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};
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int qbman_bp_query(struct qbman_swp *s, u16 bpid,
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struct qbman_bp_query_rslt *r);
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u32 qbman_bp_info_num_free_bufs(struct qbman_bp_query_rslt *a);
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#endif /* __FSL_QBMAN_PORTAL_H */
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@ -116,4 +116,8 @@ struct dpaa2_io_store *dpaa2_io_store_create(unsigned int max_frames,
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void dpaa2_io_store_destroy(struct dpaa2_io_store *s);
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struct dpaa2_dq *dpaa2_io_store_next(struct dpaa2_io_store *s, int *is_last);
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int dpaa2_io_query_fq_count(struct dpaa2_io *d, u32 fqid,
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u32 *fcnt, u32 *bcnt);
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int dpaa2_io_query_bp_count(struct dpaa2_io *d, u16 bpid,
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u32 *num);
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#endif /* __FSL_DPAA2_IO_H */
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