hyperv/hn: Add stat for # of chimney sending tries
MFC after: 1 week Sponsored by: Microsoft OSTC
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0fbe6eaef6
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=298694
@ -1211,6 +1211,7 @@ struct hn_tx_ring {
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u_long hn_send_failed;
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u_long hn_txdma_failed;
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u_long hn_tx_collapsed;
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u_long hn_tx_chimney_tried;
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u_long hn_tx_chimney;
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u_long hn_pkts;
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@ -1004,6 +1004,7 @@ hn_encap(struct hn_tx_ring *txr, struct hn_txdesc *txd, struct mbuf **m_head0)
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netvsc_dev *net_dev = txr->hn_sc->net_dev;
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uint32_t send_buf_section_idx;
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txr->hn_tx_chimney_tried++;
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send_buf_section_idx =
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hv_nv_get_next_send_section(net_dev);
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if (send_buf_section_idx !=
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@ -2595,6 +2596,10 @@ hn_create_tx_data(struct hn_softc *sc, int ring_cnt)
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CTLTYPE_ULONG | CTLFLAG_RW | CTLFLAG_MPSAFE, sc,
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__offsetof(struct hn_tx_ring, hn_tx_chimney),
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hn_tx_stat_ulong_sysctl, "LU", "# of chimney send");
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SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "tx_chimney_tried",
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CTLTYPE_ULONG | CTLFLAG_RW | CTLFLAG_MPSAFE, sc,
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__offsetof(struct hn_tx_ring, hn_tx_chimney_tried),
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hn_tx_stat_ulong_sysctl, "LU", "# of chimney send tries");
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SYSCTL_ADD_INT(ctx, child, OID_AUTO, "txdesc_cnt",
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CTLFLAG_RD, &sc->hn_tx_ring[0].hn_txdesc_cnt, 0,
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"# of total TX descs");
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