diff options
Diffstat (limited to 'sys/dev/pci/if_em.h')
| -rw-r--r-- | sys/dev/pci/if_em.h | 45 |
1 files changed, 30 insertions, 15 deletions
diff --git a/sys/dev/pci/if_em.h b/sys/dev/pci/if_em.h index 1fc3feff912..b3df0df9d18 100644 --- a/sys/dev/pci/if_em.h +++ b/sys/dev/pci/if_em.h @@ -32,7 +32,7 @@ POSSIBILITY OF SUCH DAMAGE. ***************************************************************************/ /* $FreeBSD: if_em.h,v 1.26 2004/09/01 23:22:41 pdeuskar Exp $ */ -/* $OpenBSD: if_em.h,v 1.29 2006/09/17 20:26:14 brad Exp $ */ +/* $OpenBSD: if_em.h,v 1.30 2006/11/06 03:52:37 brad Exp $ */ #ifndef _EM_H_DEFINED_ #define _EM_H_DEFINED_ @@ -127,7 +127,8 @@ POSSIBILITY OF SUCH DAMAGE. #define EM_TIDV 64 /* - * EM_TADV - Transmit Absolute Interrupt Delay Value (Not valid for 82542/82543/82544) + * EM_TADV - Transmit Absolute Interrupt Delay Value + * (Not valid for 82542/82543/82544) * Valid Range: 0-65535 (0=off) * Default Value: 64 * This value, in units of 1.024 microseconds, limits the delay in which a @@ -153,10 +154,10 @@ POSSIBILITY OF SUCH DAMAGE. * * CAUTION: When setting EM_RDTR to a value other than 0, adapters * may hang (stop transmitting) under certain network conditions. - * If this occurs a WATCHDOG message is logged in the system event log. - * In addition, the controller is automatically reset, restoring the - * network connection. To eliminate the potential for the hang - * ensure that EM_RDTR is set to 0. + * If this occurs a WATCHDOG message is logged in the system + * event log. In addition, the controller is automatically reset, + * restoring the network connection. To eliminate the potential + * for the hang ensure that EM_RDTR is set to 0. */ #define EM_RDTR 0 @@ -200,9 +201,10 @@ POSSIBILITY OF SUCH DAMAGE. #define WAIT_FOR_AUTO_NEG_DEFAULT 0 /* - * EM_MASTER_SLAVE is only defined to enable a workaround for a known compatibility issue - * with 82541/82547 devices and some switches. See the "Known Limitations" section of - * the README file for a complete description and a list of affected switches. + * EM_MASTER_SLAVE is only defined to enable a workaround for a known + * compatibility issue with 82541/82547 devices and some switches. + * See the "Known Limitations" section of the README file for a complete + * description and a list of affected switches. * * 0 = Hardware default * 1 = Master mode @@ -213,9 +215,9 @@ POSSIBILITY OF SUCH DAMAGE. /* Tunables -- End */ -#define AUTONEG_ADV_DEFAULT (ADVERTISE_10_HALF | ADVERTISE_10_FULL | \ - ADVERTISE_100_HALF | ADVERTISE_100_FULL | \ - ADVERTISE_1000_FULL) +#define AUTONEG_ADV_DEFAULT (ADVERTISE_10_HALF | ADVERTISE_10_FULL | \ + ADVERTISE_100_HALF | ADVERTISE_100_FULL | \ + ADVERTISE_1000_FULL) #define EM_MMBA 0x0010 /* Mem base address */ #define EM_FLASH 0x0014 /* Flash memory on ICH8 */ @@ -226,6 +228,15 @@ POSSIBILITY OF SUCH DAMAGE. #define MAX_NUM_MULTICAST_ADDRESSES 128 +/* + * TDBA/RDBA should be aligned on 16 byte boundary. But TDLEN/RDLEN should be + * multiple of 128 bytes. So we align TDBA/RDBA on 128 byte boundary. This will + * also optimize cache line size effect. H/W supports up to cache line size 128. + */ +#define EM_DBA_ALIGN 128 + +#define SPEED_MODE_BIT (1<<21) /* On PCI-E MACs only */ + /* Defines for printing debug information */ #define DEBUG_INIT 0 #define DEBUG_IOCTL 0 @@ -248,6 +259,7 @@ POSSIBILITY OF SUCH DAMAGE. #define EM_RXBUFFER_16384 16384 #define EM_MAX_SCATTER 64 +#define EM_TSO_SIZE 65535 struct em_buffer { struct mbuf *m_head; @@ -347,7 +359,6 @@ struct em_softc { u_int32_t txd_cmd; struct em_buffer *tx_buffer_area; bus_dma_tag_t txtag; /* dma tag for tx */ - bus_dmamap_t rx_sparemap; /* * Receive definitions @@ -360,12 +371,16 @@ struct em_softc { struct em_dma_alloc rxdma; /* bus_dma glue for rx desc */ struct em_rx_desc *rx_desc_base; u_int32_t next_rx_desc_to_check; - u_int16_t num_rx_desc; u_int32_t rx_buffer_len; + u_int16_t num_rx_desc; struct em_buffer *rx_buffer_area; bus_dma_tag_t rxtag; + bus_dmamap_t rx_sparemap; - /* Jumbo frame */ + /* + * First/last mbuf pointers, for + * collecting multisegment RX packets. + */ struct mbuf *fmp; struct mbuf *lmp; |