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sparc64: skip handshake for LDC channels in RAW mode

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LDC channels in RAW mode does not provide any session management. No
handshake protocol is defined for LDC channels in RAW mode. It's
therefore skipped.

Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Reviewed-by: Liam Merwick <liam.merwick@oracle.com>
Reviewed-by: Shannon Nelson <shannon.nelson@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jag Raman 2017-06-23 14:58:31 -04:00 committed by David S. Miller
parent ac6bb02554
commit 01b7a47138
2 changed files with 15 additions and 1 deletions
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10
arch/sparc/kernel/ldc.c
View File

@ -1347,6 +1347,14 @@ int ldc_bind(struct ldc_channel *lp)
lp->hs_state = LDC_HS_OPEN;
ldc_set_state(lp, LDC_STATE_BOUND);
if (lp->cfg.mode == LDC_MODE_RAW) {
/*
* There is no handshake in RAW mode, so handshake
* is completed.
*/
lp->hs_state = LDC_HS_COMPLETE;
}
spin_unlock_irqrestore(&lp->lock, flags);
return 0;
@ -1460,11 +1468,13 @@ void ldc_set_state(struct ldc_channel *lp, u8 state)
lp->state = state;
}
EXPORT_SYMBOL(ldc_set_state);
int ldc_mode(struct ldc_channel *lp)
{
return lp->cfg.mode;
}
EXPORT_SYMBOL(ldc_mode);
int ldc_rx_reset(struct ldc_channel *lp)
{

6
arch/sparc/kernel/viohs.c
View File

@ -776,7 +776,11 @@ void vio_port_up(struct vio_driver_state *vio)
}
if (!err) {
err = ldc_connect(vio->lp);
if (ldc_mode(vio->lp) == LDC_MODE_RAW)
ldc_set_state(vio->lp, LDC_STATE_CONNECTED);
else
err = ldc_connect(vio->lp);
if (err)
printk(KERN_WARNING "%s: Port %lu connect failed, "
"err=%d\n",