int mac_drv_init(struct s_smc *smc)
{
if (sizeof(struct s_smt_fp_rxd) % 16) {
SMT_PANIC(smc,HWM_E0001,HWM_E0001_MSG) ;
}
if (sizeof(struct s_smt_fp_txd) % 16) {
SMT_PANIC(smc,HWM_E0002,HWM_E0002_MSG) ;
}
/*
* get the required memory for the RxDs and TxDs
*/
if (!(smc->os.hwm.descr_p = (union s_fp_descr volatile *)
mac_drv_get_desc_mem(smc,(u_int)
(RXD_TXD_COUNT+1)*sizeof(struct s_smt_fp_txd)))) {
return(1) ; /* no space the hwm modul can't work */
}
/*
* get the memory for the SMT MBufs
*/
#ifndef MB_OUTSIDE_SMC
smc->os.hwm.mbuf_pool.mb_start=(SMbuf *)(&smc->os.hwm.mbuf_pool.mb[0]) ;
#else
#ifndef COMMON_MB_POOL
if (!(smc->os.hwm.mbuf_pool.mb_start = (SMbuf *) mac_drv_get_space(smc,
MAX_MBUF*sizeof(SMbuf)))) {
return(1) ; /* no space the hwm modul can't work */
}
#else
if (!mb_start) {
if (!(mb_start = (SMbuf *) mac_drv_get_space(smc,
MAX_MBUF*sizeof(SMbuf)))) {
return(1) ; /* no space the hwm modul can't work */
}
}
#endif
#endif
return (0) ;
}
void *mac_drv_get_desc_mem(struct s_smc *smc, unsigned int size)
{
char *virt;
pr_debug(KERN_INFO "mac_drv_get_desc_mem\n");
virt = mac_drv_get_space(smc, size);
size = (u_int) (16 - (((unsigned long) virt) & 15UL));
size = size % 16;
pr_debug("Allocate %u bytes alignment gap ", size);
pr_debug("for descriptor memory.\n");
if (!mac_drv_get_space(smc, size)) {
printk("fddi: Unable to align descriptor memory.\n");
return (NULL);
}
return (virt + size);
}
