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Code Issues Releases Activity

- Fix breakage on PAE enabled kernel

Browse Source 
- Don't use vtophys when you can get physical address using bus_dma API

Submitted by:	jake (Jake Burkholder)
This commit is contained in:
Prafulla Deuskar 2003-05-03 07:35:47 +00:00
parent 951fd0d157
commit bc93b4de0e
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=114567
2 changed files with 10 additions and 8 deletions
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16
sys/dev/em/if_em.c
View File

@ -1895,11 +1895,12 @@ em_initialize_transmit_unit(struct adapter * adapter)
{
u_int32_t reg_tctl;
u_int32_t reg_tipg = 0;
u_int64_t bus_addr;
/* Setup the Base and Length of the Tx Descriptor Ring */
E1000_WRITE_REG(&adapter->hw, TDBAL,
vtophys((vm_offset_t) adapter->tx_desc_base));
E1000_WRITE_REG(&adapter->hw, TDBAH, 0);
bus_addr = adapter->txdma.dma_paddr;
E1000_WRITE_REG(&adapter->hw, TDBAL, (u_int32_t)bus_addr);
E1000_WRITE_REG(&adapter->hw, TDBAH, (u_int32_t)(bus_addr >> 32));
E1000_WRITE_REG(&adapter->hw, TDLEN,
adapter->num_tx_desc *
sizeof(struct em_tx_desc));
@ -2170,7 +2171,7 @@ em_get_buf(int i, struct adapter *adapter,
register struct mbuf *mp = nmp;
struct em_buffer *rx_buffer;
struct ifnet *ifp;
u_int32_t paddr;
bus_addr_t paddr;
int error;
ifp = &adapter->interface_data.ac_if;
@ -2317,6 +2318,7 @@ em_initialize_receive_unit(struct adapter * adapter)
u_int32_t reg_rctl;
u_int32_t reg_rxcsum;
struct ifnet *ifp;
u_int64_t bus_addr;
ifp = &adapter->interface_data.ac_if;
@ -2338,9 +2340,9 @@ em_initialize_receive_unit(struct adapter * adapter)
}
/* Setup the Base and Length of the Rx Descriptor Ring */
E1000_WRITE_REG(&adapter->hw, RDBAL,
vtophys((vm_offset_t) adapter->rx_desc_base));
E1000_WRITE_REG(&adapter->hw, RDBAH, 0);
bus_addr = adapter->rxdma.dma_paddr;
E1000_WRITE_REG(&adapter->hw, RDBAL, (u_int32_t)bus_addr);
E1000_WRITE_REG(&adapter->hw, RDBAH, (u_int32_t)(bus_addr >> 32));
E1000_WRITE_REG(&adapter->hw, RDLEN, adapter->num_rx_desc *
sizeof(struct em_rx_desc));

2
sys/dev/em/if_em.h
View File

@ -282,7 +282,7 @@ struct em_q {
* em_dma_malloc and em_dma_free.
*/
struct em_dma_alloc {
u_int32_t dma_paddr;
bus_addr_t dma_paddr;
caddr_t dma_vaddr;
bus_dma_tag_t dma_tag;
bus_dmamap_t dma_map;