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hyperv/hn: Add TX method for txeof processing.

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Preamble to implement ifnet.if_transmit method.

Reviewed by:	adrian
Approved by:	adrian (mentor)
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D5346
This commit is contained in:
Sepherosa Ziehau 2016-02-22 06:28:18 +00:00
parent 5cb0a42c8c
commit ed3960349b
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=295877
2 changed files with 10 additions and 7 deletions
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3
sys/dev/hyperv/netvsc/hv_net_vsc.h
View File

@ -1026,9 +1026,10 @@ struct hn_tx_ring {
#endif
int hn_txdesc_cnt;
int hn_txdesc_avail;
int hn_txeof;
int hn_has_txeof;
int hn_sched_tx;
void (*hn_txeof)(struct hn_tx_ring *);
struct taskqueue *hn_tx_taskq;
struct task hn_tx_task;
struct task hn_txeof_task;

14
sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c
View File

@ -664,7 +664,7 @@ hn_tx_done(void *xpkt)
packet->compl.send.send_completion_tid;
txr = txd->txr;
txr->hn_txeof = 1;
txr->hn_has_txeof = 1;
hn_txdesc_put(txr, txd);
}
@ -684,11 +684,11 @@ netvsc_channel_rollup(struct hv_device *device_ctx)
}
#endif
if (!txr->hn_txeof)
if (!txr->hn_has_txeof)
return;
txr->hn_txeof = 0;
hn_start_txeof(txr);
txr->hn_has_txeof = 0;
txr->hn_txeof(txr);
}
/*
@ -976,12 +976,12 @@ hn_start_locked(struct hn_tx_ring *txr, int len)
* commands to run? Ask netvsc_channel_rollup()
* to kick start later.
*/
txr->hn_txeof = 1;
txr->hn_has_txeof = 1;
if (!send_failed) {
txr->hn_send_failed++;
send_failed = 1;
/*
* Try sending again after set hn_txeof;
* Try sending again after set hn_has_txeof;
* in case that we missed the last
* netvsc_channel_rollup().
*/
@ -2111,6 +2111,8 @@ hn_create_tx_ring(struct hn_softc *sc, int id)
*/
txr->hn_sched_tx = 1;
txr->hn_txeof = hn_start_txeof; /* TODO: if_transmit */
parent_dtag = bus_get_dma_tag(sc->hn_dev);
/* DMA tag for RNDIS messages. */