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wpi: restore frame header before submitting an mbuf to

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ieee80211_tx_complete()

This change allows to pass packet length to rate control modules and
fixes IFCOUNTER_OBYTES calculation.

Tested with Intel 3945BG, STA mode.
This commit is contained in:
Andriy Voskoboinyk 2016-10-08 20:41:08 +00:00
parent 3f4a7d9c24
commit 3f3d4d6100
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=306878
2 changed files with 10 additions and 1 deletions
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10
sys/dev/wpi/if_wpi.c
View File

@ -527,7 +527,8 @@ wpi_attach(device_t dev)
wpi_radiotap_attach(sc);
/* Setup Tx status flags (constant). */
sc->sc_txs.flags = IEEE80211_RATECTL_STATUS_SHORT_RETRY |
sc->sc_txs.flags = IEEE80211_RATECTL_STATUS_PKTLEN |
IEEE80211_RATECTL_STATUS_SHORT_RETRY |
IEEE80211_RATECTL_STATUS_LONG_RETRY;
callout_init_mtx(&sc->calib_to, &sc->rxon_mtx, 0);
@ -2079,9 +2080,15 @@ wpi_tx_done(struct wpi_softc *sc, struct wpi_rx_desc *desc)
m = data->m, data->m = NULL;
ni = data->ni, data->ni = NULL;
/* Restore frame header. */
KASSERT(M_LEADINGSPACE(m) >= data->hdrlen, ("no frame header!"));
M_PREPEND(m, data->hdrlen, M_NOWAIT);
KASSERT(m != NULL, ("%s: m is NULL\n", __func__));
/*
* Update rate control statistics for the node.
*/
txs->pktlen = m->m_pkthdr.len;
txs->short_retries = stat->rtsfailcnt;
txs->long_retries = stat->ackfailcnt / WPI_NTRIES_DEFAULT;
if (!(status & WPI_TX_STATUS_FAIL))
@ -2721,6 +2728,7 @@ wpi_cmd2(struct wpi_softc *sc, struct wpi_buf *buf)
data->m = buf->m;
data->ni = buf->ni;
data->hdrlen = hdrlen;
DPRINTF(sc, WPI_DEBUG_XMIT, "%s: qid %d idx %d len %d nsegs %d\n",
__func__, ring->qid, cur, totlen, nsegs);

1
sys/dev/wpi/if_wpivar.h
View File

@ -63,6 +63,7 @@ struct wpi_tx_data {
bus_addr_t cmd_paddr;
struct mbuf *m;
struct ieee80211_node *ni;
int hdrlen;
};
struct wpi_tx_ring {