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NTB: Add ntb_mw_clear_trans() missed in r289546

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It is just a trivial wrapper around ntb_mw_set_trans().

Authored by:	Allen Hubbe
Obtained from:	Linux (Dual BSD/GPL driver)
Sponsored by:	EMC / Isilon Storage Division
This commit is contained in:
cem 2015-10-19 17:41:22 +00:00
parent 07b8b0c16f
commit f0b66c7c4b
1 changed files with 17 additions and 0 deletions
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17
sys/dev/ntb/ntb_hw/ntb_hw.c
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@ -2117,6 +2117,23 @@ ntb_mw_set_trans(struct ntb_softc *ntb, unsigned idx, bus_addr_t addr,
return (0);
}
/*
* ntb_mw_clear_trans() - clear the translation of a memory window
* @ntb: NTB device context
* @idx: Memory window number
*
* Clear the translation of a memory window. The peer may no longer access
* local memory through the window.
*
* Return: Zero on success, otherwise an error number.
*/
int
ntb_mw_clear_trans(struct ntb_softc *ntb, unsigned mw_idx)
{
return (ntb_mw_set_trans(ntb, mw_idx, 0, 0));
}
/**
* ntb_peer_db_set() - Set the doorbell on the secondary/external side
* @ntb: pointer to ntb_softc instance