[SPARC64]: Handle reset events in vio_link_state_change().
Signed-off-by: David S. Miller <davem@davemloft.net>
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8a2950cce6
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@ -78,6 +78,23 @@ static int start_handshake(struct vio_driver_state *vio)
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return 0;
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}
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static void flush_rx_dring(struct vio_driver_state *vio)
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{
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struct vio_dring_state *dr;
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u64 ident;
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BUG_ON(!(vio->dr_state & VIO_DR_STATE_RXREG));
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dr = &vio->drings[VIO_DRIVER_RX_RING];
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ident = dr->ident;
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BUG_ON(!vio->desc_buf);
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kfree(vio->desc_buf);
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memset(dr, 0, sizeof(*dr));
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dr->ident = ident;
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}
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void vio_link_state_change(struct vio_driver_state *vio, int event)
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{
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if (event == LDC_EVENT_UP) {
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@ -98,6 +115,16 @@ void vio_link_state_change(struct vio_driver_state *vio, int event)
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break;
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}
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start_handshake(vio);
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} else if (event == LDC_EVENT_RESET) {
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vio->hs_state = VIO_HS_INVALID;
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if (vio->dr_state & VIO_DR_STATE_RXREG)
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flush_rx_dring(vio);
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vio->dr_state = 0x00;
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memset(&vio->ver, 0, sizeof(vio->ver));
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ldc_disconnect(vio->lp);
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}
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}
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EXPORT_SYMBOL(vio_link_state_change);
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@ -396,6 +423,8 @@ static int process_dreg_info(struct vio_driver_state *vio,
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if (vio->dr_state & VIO_DR_STATE_RXREG)
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goto send_nack;
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BUG_ON(vio->desc_buf);
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vio->desc_buf = kzalloc(pkt->descr_size, GFP_ATOMIC);
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if (!vio->desc_buf)
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goto send_nack;
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