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net/enetc: set random MAC in case no MAC for SI

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for SGMII interfaces, there can be 0 value
written on MAC registers.
This patch set the random MAC address for those
interfaces.

Signed-off-by: Gagandeep Singh <g.singh@nxp.com>
This commit is contained in:
Gagandeep Singh 2019-10-23 11:36:00 +05:30 committed by Ferruh Yigit
parent 896d937206
commit 07e29b2e59
2 changed files with 32 additions and 1 deletions
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2
drivers/net/enetc/Makefile
View File

@ -17,7 +17,7 @@ SRCS-$(CONFIG_RTE_LIBRTE_ENETC_PMD) += enetc_ethdev.c
SRCS-$(CONFIG_RTE_LIBRTE_ENETC_PMD) += enetc_rxtx.c
LDLIBS += -lrte_eal -lrte_mbuf -lrte_mempool
LDLIBS += -lrte_ethdev
LDLIBS += -lrte_ethdev -lrte_net
LDLIBS += -lrte_bus_pci
include $(RTE_SDK)/mk/rte.lib.mk

31
drivers/net/enetc/enetc_ethdev.c
View File

@ -4,6 +4,7 @@
#include <stdbool.h>
#include <rte_ethdev_pci.h>
#include <rte_random.h>
#include "enetc_logs.h"
#include "enetc.h"
@ -123,11 +124,22 @@ enetc_link_update(struct rte_eth_dev *dev, int wait_to_complete __rte_unused)
return rte_eth_linkstatus_set(dev, &link);
}
static void
print_ethaddr(const char *name, const struct rte_ether_addr *eth_addr)
{
char buf[RTE_ETHER_ADDR_FMT_SIZE];
rte_ether_format_addr(buf, RTE_ETHER_ADDR_FMT_SIZE, eth_addr);
ENETC_PMD_INFO("%s%s\n", name, buf);
}
static int
enetc_hardware_init(struct enetc_eth_hw *hw)
{
struct enetc_hw *enetc_hw = &hw->hw;
uint32_t *mac = (uint32_t *)hw->mac.addr;
uint32_t high_mac = 0;
uint16_t low_mac = 0;
PMD_INIT_FUNC_TRACE();
/* Calculating and storing the base HW addresses */
@ -138,8 +150,27 @@ enetc_hardware_init(struct enetc_eth_hw *hw)
enetc_wr(enetc_hw, ENETC_SIMR, ENETC_SIMR_EN);
*mac = (uint32_t)enetc_port_rd(enetc_hw, ENETC_PSIPMAR0(0));
high_mac = (uint32_t)*mac;
mac++;
*mac = (uint16_t)enetc_port_rd(enetc_hw, ENETC_PSIPMAR1(0));
low_mac = (uint16_t)*mac;
if ((high_mac | low_mac) == 0) {
char *first_byte;
mac = (uint32_t *)hw->mac.addr;
*mac = (uint32_t)rte_rand();
first_byte = (char *)mac;
*first_byte &= 0xfe; /* clear multicast bit */
*first_byte |= 0x02; /* set local assignment bit (IEEE802) */
enetc_port_wr(enetc_hw, ENETC_PSIPMAR0(0), *mac);
mac++;
*mac = (uint16_t)rte_rand();
enetc_port_wr(enetc_hw, ENETC_PSIPMAR1(0), *mac);
print_ethaddr("New address: ",
(const struct rte_ether_addr *)hw->mac.addr);
}
return 0;
}