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Fix e1000 receive tail pointer (RDT) handling 

e1000 should now work in VMware.
pull/1/head
Marty Connor 2007-12-17 13:07:29 -05:00
parent bea8787a03
commit ff476c04e9
2 changed files with 7 additions and 7 deletions
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12
src/drivers/net/e1000/e1000.c
View File

@ -365,7 +365,7 @@ e1000_configure_rx ( struct e1000_adapter *adapter )
rctl = E1000_READ_REG ( hw, RCTL ); rctl = E1000_READ_REG ( hw, RCTL );
E1000_WRITE_REG ( hw, RCTL, rctl & ~E1000_RCTL_EN ); E1000_WRITE_REG ( hw, RCTL, rctl & ~E1000_RCTL_EN );
adapter->rx_tail = 0; adapter->rx_curr = 0;
/* Setup the HW Rx Head and Tail Descriptor Pointers and /* Setup the HW Rx Head and Tail Descriptor Pointers and
* the Base and Length of the Rx Descriptor Ring */ * the Base and Length of the Rx Descriptor Ring */
@ -375,7 +375,7 @@ e1000_configure_rx ( struct e1000_adapter *adapter )
E1000_WRITE_REG ( hw, RDLEN, adapter->rx_ring_size ); E1000_WRITE_REG ( hw, RDLEN, adapter->rx_ring_size );
E1000_WRITE_REG ( hw, RDH, 0 ); E1000_WRITE_REG ( hw, RDH, 0 );
E1000_WRITE_REG ( hw, RDT, NUM_TX_DESC ); E1000_WRITE_REG ( hw, RDT, NUM_RX_DESC - 1 );
/* Enable Receives */ /* Enable Receives */
rctl = ( E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_SZ_2048 | rctl = ( E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_SZ_2048 |
@ -661,7 +661,7 @@ e1000_poll ( struct net_device *netdev )
*/ */
while ( 1 ) { while ( 1 ) {
i = adapter->rx_tail;; i = adapter->rx_curr;
rx_curr_desc = ( void * ) ( adapter->rx_base ) + rx_curr_desc = ( void * ) ( adapter->rx_base ) +
( i * sizeof ( *adapter->rx_base ) ); ( i * sizeof ( *adapter->rx_base ) );
@ -676,7 +676,7 @@ e1000_poll ( struct net_device *netdev )
rx_len = rx_curr_desc->length; rx_len = rx_curr_desc->length;
DBG ( "Received packet, rx_tail: %ld rx_status: %#08lx rx_len: %ld\n", DBG ( "Received packet, rx_curr: %ld rx_status: %#08lx rx_len: %ld\n",
i, rx_status, rx_len ); i, rx_status, rx_len );
rx_err = rx_curr_desc->errors; rx_err = rx_curr_desc->errors;
@ -707,9 +707,9 @@ e1000_poll ( struct net_device *netdev )
memset ( rx_curr_desc, 0, sizeof ( *rx_curr_desc ) ); memset ( rx_curr_desc, 0, sizeof ( *rx_curr_desc ) );
rx_curr_desc->buffer_addr = tmp_buffer_addr; rx_curr_desc->buffer_addr = tmp_buffer_addr;
E1000_WRITE_REG ( hw, RDT, adapter->rx_tail ); E1000_WRITE_REG ( hw, RDT, adapter->rx_curr );
adapter->rx_tail = ( adapter->rx_tail + 1 ) % NUM_RX_DESC; adapter->rx_curr = ( adapter->rx_curr + 1 ) % NUM_RX_DESC;
} }
} }

2
src/drivers/net/e1000/e1000.h
View File

@ -271,7 +271,7 @@ struct e1000_adapter {
uint32_t tx_tail; uint32_t tx_tail;
uint32_t tx_fill_ctr; uint32_t tx_fill_ctr;
uint32_t rx_tail; uint32_t rx_curr;
uint32_t ioaddr; uint32_t ioaddr;
uint32_t irqno; uint32_t irqno;