/* * pnc_mac_da_mask - Add DA MAC address match rule to the MAC section * @da: destination MAC address * @mask: destination mask * @len: destination MAC address length to match on: 0..6 * @port_mask: source port id: 0..1F or ANY * @rxq: rx queue * @rinfo: result info bits to set */ static struct tcam_entry *pnc_mac_da_mask(unsigned char *da, unsigned char *mask, unsigned int len, unsigned int port_mask, int rxq, unsigned int rinfo) { struct tcam_entry *te = NULL; if (len > MV_MAC_ADDR_SIZE) goto out; if (rinfo >= BIT24) goto out; te = tcam_sw_alloc(TCAM_LU_MAC); /* set match on DA */ while (len--) { tcam_sw_set_byte(te, MV_ETH_MH_SIZE + len, da[len]); tcam_sw_set_mask(te, MV_ETH_MH_SIZE + len, mask[len]); } /* port id match */ tcam_sw_set_port(te, 0, port_mask); /* result info bit */ sram_sw_set_rinfo(te, rinfo); /* set rx queue */ sram_sw_set_rxq(te, rxq, 0); /* shift to ethertype */ sram_sw_set_shift_update(te, 0, MV_ETH_MH_SIZE + 2 * MV_MAC_ADDR_SIZE); sram_sw_set_next_lookup(te, TCAM_LU_L2); out: return te; }
/* * pnc_mac_init - GE init phase configuration */ static int pnc_mac_init(void) { struct tcam_entry *te; unsigned char da_mc[6] = { 0x01, 0x00, 0x00, 0x00, 0x00, 0x00 }; unsigned char da_mc_mask[6] = { 0x01, 0x00, 0x00, 0x00, 0x00, 0x00 }; unsigned char da_bc[6] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; PNC_DBG("%s\n", __func__); /* broadcast - for all ports */ te = pnc_mac_da(da_bc, 6, 0, rxq_mac_bc, RI_DA_BC); tcam_sw_text(te, "bcast"); tcam_hw_write(te, TE_MAC_BC); tcam_sw_free(te); /* flow control PAUSE frames - discard for all ports by default */ pnc_mac_fc_drop(); /* All Multicast - no ports by default */ te = pnc_mac_da_mask(da_mc, da_mc_mask, 1, PORT_MASK, rxq_mac_mc, RI_DA_MC); tcam_sw_text(te, "mcast_all"); tcam_hw_write(te, TE_MAC_MC_ALL); tcam_sw_free(te); /* end of section */ te = tcam_sw_alloc(TCAM_LU_MAC); sram_sw_set_flowid(te, FLOWID_EOF_LU_MAC, 0xF); /* Non-promiscous mode - DROP unknown packets */ sram_sw_set_rinfo(te, RI_DROP); sram_sw_set_lookup_done(te, 1); tcam_sw_text(te, "mac_eof"); tcam_hw_write(te, TE_MAC_EOF); tcam_sw_free(te); return 0; }
/* * pnc_mac_fc_drop - Add Flow Control MAC address match rule to the MAC section * to drop PAUSE frames arriving without Marvell Header on all ports */ static void pnc_mac_fc_drop(void) { struct tcam_entry *te = NULL; unsigned char da[6] = { 0x01, 0x80, 0xC2, 0x00, 0x00, 0x01 }; unsigned int len = MV_MAC_ADDR_SIZE; te = tcam_sw_alloc(TCAM_LU_MAC); /* set match on DA */ while (len--) tcam_sw_set_byte(te, len, da[len]); /* port id match */ tcam_sw_set_port(te, 0, 0); /* all ports */ /* result info bit */ sram_sw_set_rinfo(te, RI_DROP); tcam_sw_text(te, "flow control"); sram_sw_set_lookup_done(te, 1); tcam_hw_write(te, TE_MAC_FLOW_CTRL); tcam_sw_free(te); }
static ssize_t tcam_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) { const char* name = attr->attr.name; unsigned int err=0, a=0, b=0; unsigned long flags; if (!capable(CAP_NET_ADMIN)) return -EPERM; sscanf(buf,"%x %x",&a, &b); raw_local_irq_save(flags); if (!strcmp(name, "hw_write")) tcam_hw_write(&te, a); else if (!strcmp(name, "hw_read")) tcam_hw_read(&te, a); else if (!strcmp(name, "hw_debug")) tcam_hw_debug(a); else if (!strcmp(name, "hw_inv")) tcam_hw_inv(a); else if (!strcmp(name, "hw_inv_all")) tcam_hw_inv_all(); else if (!strcmp(name, "hw_hits")) tcam_hw_record(a); #ifdef CONFIG_MV_ETH_PNC_AGING else if (!strcmp(name, "age_clear")) mvPncAgingCntrClear(a); else if (!strcmp(name, "age_cntr")) { b = mvPncAgingCntrRead(a); printk("tid=%d: age_cntr = 0x%08x\n", a, b); } #endif /* CONFIG_MV_ETH_PNC_AGING */ else if (!strcmp(name, "sw_clear")) tcam_sw_clear(&te); else if (!strcmp(name, "sw_text")) { /* Remove last byte (new line) from the buffer */ int len = strlen(buf); char* temp = mvOsMalloc(len + 1); strncpy(temp, buf, len-1); temp[len-1] = 0; tcam_sw_text(&te, temp); mvOsFree(temp); } else if (!strcmp(name, "t_port")) tcam_sw_set_port(&te, a, b); else if (!strcmp(name, "t_lookup")) tcam_sw_set_lookup(&te, a); else if (!strcmp(name, "t_ainfo_0")) tcam_sw_set_ainfo(&te, 0<<a, 1<<a); else if (!strcmp(name, "t_ainfo_1")) tcam_sw_set_ainfo(&te, 1<<a, 1<<a); else if (!strcmp(name, "t_ainfo")) tcam_sw_set_ainfo(&te, a, b); else if (!strcmp(name, "t_offset_byte")) tcam_sw_set_byte(&te, a, b); else if (!strcmp(name, "t_offset_mask")) tcam_sw_set_mask(&te, a, b); else if (!strcmp(name, "s_lookup")) sram_sw_set_next_lookup(&te, a); else if (!strcmp(name, "s_ainfo")) sram_sw_set_ainfo(&te, a, b); else if (!strcmp(name, "s_lookup_done")) sram_sw_set_lookup_done(&te, a); else if (!strcmp(name, "s_next_lookup_shift")) sram_sw_set_next_lookup_shift(&te, a); else if (!strcmp(name, "s_rxq")) sram_sw_set_rxq(&te, a, b); else if (!strcmp(name, "s_shift_update")) sram_sw_set_shift_update(&te,a,b); else if (!strcmp(name, "s_rinfo")) sram_sw_set_rinfo(&te, 1 << a); else if (!strcmp(name, "s_rinfo_extra")) sram_sw_set_rinfo_extra(&te, a << (b & ~1)); else if (!strcmp(name, "s_flowid")) sram_sw_set_flowid(&te, a, b); else if (!strcmp(name, "s_flowid_nibble")) sram_sw_set_flowid_nibble(&te, a, b); #ifdef CONFIG_MV_ETH_PNC_AGING else if (!strcmp(name, "age_gr_set")) mvPncAgingCntrGroupSet(a, b); #endif /* CONFIG_MV_ETH_PNC_AGING */ else { err = 1; printk("%s: illegal operation <%s>\n", __FUNCTION__, attr->attr.name); } raw_local_irq_restore(flags); if (err) printk("%s: <%s>, error %d\n", __FUNCTION__, attr->attr.name, err); return err ? -EINVAL : len; }