man pages section 9: DDI and DKI Properties and Data Structures

gld_mac_info(9S)

Name

gld_mac_info– Generic LAN Driver MAC info data structure

Synopsis

#include <sys/gld.h>

Interface Level

Solaris architecture specific (Solaris DDI).

Description

The Generic LAN Driver (GLD) Media Access Control (MAC) information (gld_mac_info) structure is the main data interface between the device-specific driver and GLD. It contains data required by GLD and a pointer to an optional additional driver-specific information structure.

The gld_mac_info structure should be allocated using gld_mac_alloc() and deallocated using gld_mac_free(). Drivers can make no assumptions about the length of this structure, which might be different in different releases of Solaris and/or GLD. Structure members private to GLD, not documented here, should not be set or read by the device-specific driver.

Structure Members

caddr_t         gldm_private;            /* Driver private data */
int               (*gldm_reset)();          /* Reset device */
int               (*gldm_start)();          /* Start device */
int               (*gldm_stop)();           /* Stop device */
int               (*gldm_set_mac_addr)();   /* Set device phys addr */
int               (*gldm_set_multicast)();  /* Set/delete */
                                            /* multicast address */
int               (*gldm_set_promiscuous)();/* Set/reset */
                                            /* promiscuous mode */
int               (*gldm_send)();           /* Transmit routine */
u_int             (*gldm_intr)();           /* Interrupt handler */
int               (*gldm_get_stats)();      /* Get device statistics */
int               (*gldm_ioctl)();          /* Driver-specific ioctls */
char             *gldm_ident;               /* Driver identity string */
uint32_t          gldm_type;                /* Device type */
uint32_t          gldm_minpkt;              /* Minimum packet size */
                                            /* accepted by driver */
uint32_t          gldm_maxpkt;              /* Maximum packet size */
                                            /* accepted by driver */
uint32_t          gldm_addrlen;             /* Physical address */
                                            /* length */
int32_t           gldm_saplen;              /* SAP length for */
                                            /* DL_INFO_ACK */
unsigned char    *gldm_broadcast_addr;      /* Physical broadcast */
                                            /* addr */
unsigned char    *gldm_vendor_addr;         /* Factory MAC address */
t_uscalar_t       gldm_ppa;                 /* Physical Point of */
                                            /* Attachment (PPA) number */
dev_info_t       *gldm_devinfo;             /* Pointer to device's */
                                            /* dev_info node */
ddi_iblock_cookie_tgldm_cookie;             /* Device's interrupt */
                                            /* block cookie */
uint32_t          gldm_capabilities;        /* Device capabilities */

Below is a description of the members of the gld_mac_info structure that are visible to the device driver.

gldm_private: This structure member is private to the device-specific driver and is not used or modified by GLD. Conventionally, this is used as a pointer to private data, pointing to a driver-defined and driver-allocated per-instance data structure.

The following group of structure members must be set by the driver before calling gld_register(), and should not thereafter be modified by the driver; gld_register() can use or cache the values of some of these structure members, so changes made by the driver after calling gld_register() might cause unpredicted results.

gldm_reset