static ssize_t tcam_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
const char* name = attr->attr.name;
unsigned int v, m;
if (!capable(CAP_NET_ADMIN))
return -EPERM;
if (!strcmp(name, "t_port")) {
tcam_sw_get_port(&te, &v, &m);
return mvOsSPrintf(buf, "value:0x%x mask:0x%x\n", v, m);
}
else if (!strcmp(name, "t_lookup")) {
tcam_sw_get_lookup(&te, &v, &m);
return mvOsSPrintf(buf, "value:0x%x mask:0x%x\n", v, m);
}
else if (!strcmp(name, "sw_dump"))
return tcam_sw_dump(&te, buf);
else if (!strcmp(name, "hw_dump"))
return tcam_hw_dump(0);
else if (!strcmp(name, "hw_dump_all"))
return tcam_hw_dump(1);
else if (!strcmp(name, "hw_regs"))
mvNetaPncRegs();
else if (!strcmp(name, "hw_hits"))
return tcam_hw_hits(buf);
#ifdef CONFIG_MV_ETH_PNC_AGING
else if (!strcmp(name, "age_dump"))
mvPncAgingDump(0);
else if (!strcmp(name, "age_dump_all"))
mvPncAgingDump(1);
else if (!strcmp(name, "age_scan"))
mvPncAgingScannerDump();
else if (!strcmp(name, "age_reset"))
mvPncAgingReset();
#endif /* CONFIG_MV_ETH_PNC_AGING */
else if (!strcmp(name, "help"))
return tcam_help(buf);
return 0;
}
/*
* pnc_mcast_all - Accept all MAC multicast of port
* @port: ingress giga port number.
* @en: 1 - Accept ALL MCAST, 0 - Discard ALL MCAST
*/
int pnc_mcast_all(unsigned int port, int en)
{
struct tcam_entry *te;
unsigned int data, mask;
te = pnc_tcam_entry_get(TE_MAC_MC_ALL);
if (te == NULL) {
mvOsPrintf("%s: MC_ALL entry (tid=%d) is invalid\n", __func__, TE_MAC_MC_ALL);
return 1;
}
/* Update port mask */
tcam_sw_get_port(te, &data, &mask);
mask = pnc_port_mask_update(mask, port, en);
tcam_sw_set_port(te, data, mask);
tcam_sw_text(te, "mcast_all");
tcam_hw_write(te, TE_MAC_MC_ALL);
tcam_sw_free(te);
return 0;
}
/*
* pnc_mcast_me - Add DA MAC address of port
* @mac: Multicast MAC DA or NULL to delete all Multicast DAs for this port
* @port: ingress giga port number
*/
int pnc_mcast_me(unsigned int port, unsigned char *mac)
{
struct tcam_entry *te;
int tid, empty = -1;
unsigned int data, mask;
if (mac == NULL) {
/* Delete all Multicast addresses for this port */
for (tid = (TE_MAC_MC_ALL + 1); tid <= TE_MAC_MC_L; tid++) {
/* Check TCAM entry */
te = pnc_tcam_entry_get(tid);
if (te != NULL) {
/* delete entry if belong specific port */
tcam_sw_get_port(te, &data, &mask);
mask = pnc_port_mask_update(mask, port, 0);
if (mask == PORT_MASK) { /* No valid ports */
tcam_hw_inv(tid);
} else {
tcam_sw_set_port(te, data, mask);
tcam_hw_write(te, tid);
}
tcam_sw_free(te);
}
}
return 0;
}
/* Add new Multicast DA for this port */
for (tid = (TE_MAC_MC_ALL + 1); tid <= TE_MAC_MC_L; tid++) {
te = pnc_tcam_entry_get(tid);
/* Remember first Empty entry */
if (te == NULL) {
if (empty == -1)
empty = tid;
continue;
}
/* Find existing TCAM entry with this DA */
if (tcam_sw_cmp_bytes(te, MV_ETH_MH_SIZE, MV_MAC_ADDR_SIZE, mac) == 0) {
/* check and update port mask */
tcam_sw_get_port(te, &data, &mask);
mask = pnc_port_mask_update(mask, port, 1);
tcam_sw_set_port(te, data, mask);
tcam_hw_write(te, tid);
tcam_sw_free(te);
return 0;
}
tcam_sw_free(te);
}
/* Not found existing entry and no free TCAM entry - Failed */
if (empty == -1)
return 1;
/* Not found existing entry - add to free TCAM entry */
te = pnc_mac_da(mac, MV_MAC_ADDR_SIZE, pnc_port_mask(port), rxq_mac_mc, RI_DA_MC);
tcam_sw_text(te, "mcast_me");
tcam_hw_write(te, empty);
tcam_sw_free(te);
return 0;
}