diff options
Diffstat (limited to 'sys/dev/pci/if_em.h')
| -rw-r--r-- | sys/dev/pci/if_em.h | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/sys/dev/pci/if_em.h b/sys/dev/pci/if_em.h index 9ab7672fb41..259c03274d4 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 1.23 2006/03/05 19:55:10 brad Exp $ */ +/* $OpenBSD: if_em.h,v 1.24 2006/07/03 20:55:55 brad Exp $ */ #ifndef _EM_H_DEFINED_ #define _EM_H_DEFINED_ @@ -83,20 +83,23 @@ POSSIBILITY OF SUCH DAMAGE. /* Tunables */ /* - * EM_(MIN/MAX)_TXD: Maximum number of Transmit Descriptors + * EM_TXD: Maximum number of Transmit Descriptors * Valid Range: 80-256 for 82542 and 82543-based adapters * 80-4096 for others * Default Value: 256 * This value is the number of transmit descriptors allocated by the driver. * Increasing this value allows the driver to queue more transmits. Each * descriptor is 16 bytes. + * Since TDLEN should be multiple of 128bytes, the number of transmit + * desscriptors should meet the following condition. + * (num_tx_desc * sizeof(struct em_tx_desc)) % 128 == 0 */ #define EM_MIN_TXD 12 -#define EM_MAX_TXD 256 -#define EM_MAX_TXD_82544 512 +#define EM_MAX_TXD_82543 256 +#define EM_MAX_TXD 512 /* - * EM_(MIN/MAX)_RXD - Maximum number of receive Descriptors + * EM_RXD - Maximum number of receive Descriptors * Valid Range: 80-256 for 82542 and 82543-based adapters * 80-4096 for others * Default Value: 256 @@ -104,7 +107,9 @@ POSSIBILITY OF SUCH DAMAGE. * Increasing this value allows the driver to buffer more incoming packets. * Each descriptor is 16 bytes. A receive buffer is also allocated for each * descriptor. The maximum MTU size is 16110. - * + * Since TDLEN should be multiple of 128bytes, the number of transmit + * desscriptors should meet the following condition. + * (num_tx_desc * sizeof(struct em_tx_desc)) % 128 == 0 */ #define EM_MIN_RXD 12 #define EM_MAX_RXD 256 @@ -213,6 +218,7 @@ POSSIBILITY OF SUCH DAMAGE. ADVERTISE_1000_FULL) #define EM_MMBA 0x0010 /* Mem base address */ +#define EM_FLASH 0x0014 /* Flash memory on ICH8 */ #define EM_ROUNDUP(size, unit) (((size) + (unit) - 1) & ~((unit) - 1)) #define EM_SMARTSPEED_DOWNSHIFT 3 @@ -303,12 +309,6 @@ struct em_softc { void *sc_powerhook; void *sc_shutdownhook; -#ifdef __STRICT_ALIGNMENT - /* Used for carrying forward alignment adjustments */ - unsigned char align_buf[ETHER_ALIGN]; /* tail of unaligned packet */ - u_int8_t align_buf_len; /* bytes in tail */ -#endif /* __STRICT_ALIGNMENT */ - /* Info about the board itself */ u_int32_t part_num; u_int8_t link_active; |