[undi] Apply quota only to number of complete received packets
Signed-off-by: Michael Brown <mcb30@ipxe.org>
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779d65222e
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@ -72,8 +72,8 @@ struct undi_nic {
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/** Delay between retries of PXENV_UNDI_INITIALIZE */
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/** Delay between retries of PXENV_UNDI_INITIALIZE */
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#define UNDI_INITIALIZE_RETRY_DELAY_MS 200
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#define UNDI_INITIALIZE_RETRY_DELAY_MS 200
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/** Maximum number of calls to PXENV_UNDI_ISR per poll */
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/** Maximum number of received packets per poll */
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#define UNDI_POLL_QUOTA 4
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#define UNDI_RX_QUOTA 4
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/** Alignment of received frame payload */
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/** Alignment of received frame payload */
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#define UNDI_RX_ALIGN 16
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#define UNDI_RX_ALIGN 16
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@ -331,7 +331,7 @@ static void undinet_poll ( struct net_device *netdev ) {
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struct undi_nic *undinic = netdev->priv;
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struct undi_nic *undinic = netdev->priv;
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struct s_PXENV_UNDI_ISR undi_isr;
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struct s_PXENV_UNDI_ISR undi_isr;
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struct io_buffer *iobuf = NULL;
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struct io_buffer *iobuf = NULL;
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unsigned int quota = UNDI_POLL_QUOTA;
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unsigned int quota = UNDI_RX_QUOTA;
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size_t len;
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size_t len;
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size_t reserve_len;
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size_t reserve_len;
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size_t frag_len;
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size_t frag_len;
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@ -370,7 +370,7 @@ static void undinet_poll ( struct net_device *netdev ) {
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}
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}
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/* Run through the ISR loop */
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/* Run through the ISR loop */
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while ( quota-- ) {
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while ( quota ) {
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profile_start ( &undinet_isr_call_profiler );
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profile_start ( &undinet_isr_call_profiler );
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if ( ( rc = pxeparent_call ( undinet_entry, PXENV_UNDI_ISR,
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if ( ( rc = pxeparent_call ( undinet_entry, PXENV_UNDI_ISR,
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&undi_isr,
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&undi_isr,
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@ -424,6 +424,7 @@ static void undinet_poll ( struct net_device *netdev ) {
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if ( iob_len ( iobuf ) == len ) {
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if ( iob_len ( iobuf ) == len ) {
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/* Whole packet received; deliver it */
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/* Whole packet received; deliver it */
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netdev_rx ( netdev, iob_disown ( iobuf ) );
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netdev_rx ( netdev, iob_disown ( iobuf ) );
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quota--;
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/* Etherboot 5.4 fails to return all packets
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/* Etherboot 5.4 fails to return all packets
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* under mild load; pretend it retriggered.
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* under mild load; pretend it retriggered.
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*/
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*/
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