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qlcnic: add loopback diagnostic test

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Loopback test (offline) added in ethtool self test.
o Set device in loopback mode
o Send packets
o Process receive packets in qlcnic_process_rcv_ring_diag()
o Compare packets
o Reset device in normal mode.

Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Amit Kumar Salecha 2010-02-01 05:25:00 +00:00 committed by David S. Miller
parent 7eb9855d68
commit cdaff1854f
5 changed files with 225 additions and 10 deletions
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6
drivers/net/qlcnic/qlcnic.h
View File

@ -897,6 +897,7 @@ struct qlcnic_mac_req {
#define __QLCNIC_START_FW 4
#define QLCNIC_INTERRUPT_TEST 1
#define QLCNIC_LOOPBACK_TEST 2
struct qlcnic_adapter {
struct qlcnic_hardware_context ahw;
@ -1066,6 +1067,8 @@ int qlcnic_send_lro_cleanup(struct qlcnic_adapter *adapter);
void qlcnic_update_cmd_producer(struct qlcnic_adapter *adapter,
struct qlcnic_host_tx_ring *tx_ring);
int qlcnic_get_mac_addr(struct qlcnic_adapter *adapter, u64 *mac);
void qlcnic_clear_ilb_mode(struct qlcnic_adapter *adapter);
int qlcnic_set_ilb_mode(struct qlcnic_adapter *adapter);
/* Functions from qlcnic_main.c */
int qlcnic_reset_context(struct qlcnic_adapter *);
@ -1073,6 +1076,9 @@ u32 qlcnic_issue_cmd(struct qlcnic_adapter *adapter,
u32 pci_fn, u32 version, u32 arg1, u32 arg2, u32 arg3, u32 cmd);
void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings);
int qlcnic_diag_alloc_res(struct net_device *netdev, int test);
int qlcnic_check_loopback_buff(unsigned char *data);
netdev_tx_t qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev);
void qlcnic_process_rcv_ring_diag(struct qlcnic_host_sds_ring *sds_ring);
/*
* QLOGIC Board information

82
drivers/net/qlcnic/qlcnic_ethtool.c
View File

@ -66,7 +66,8 @@ static const struct qlcnic_stats qlcnic_gstrings_stats[] = {
static const char qlcnic_gstrings_test[][ETH_GSTRING_LEN] = {
"Register_Test_on_offline",
"Link_Test_on_offline",
"Interrupt_Test_offline"
"Interrupt_Test_offline",
"Loopback_Test_offline"
};
#define QLCNIC_TEST_LEN ARRAY_SIZE(qlcnic_gstrings_test)
@ -614,6 +615,80 @@ static int qlcnic_get_sset_count(struct net_device *dev, int sset)
}
}
#define QLC_ILB_PKT_SIZE 64
static void qlcnic_create_loopback_buff(unsigned char *data)
{
unsigned char random_data[] = {0xa8, 0x06, 0x45, 0x00};
memset(data, 0x4e, QLC_ILB_PKT_SIZE);
memset(data, 0xff, 12);
memcpy(data + 12, random_data, sizeof(random_data));
}
int qlcnic_check_loopback_buff(unsigned char *data)
{
unsigned char buff[QLC_ILB_PKT_SIZE];
qlcnic_create_loopback_buff(buff);
return memcmp(data, buff, QLC_ILB_PKT_SIZE);
}
static int qlcnic_do_ilb_test(struct qlcnic_adapter *adapter)
{
struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
struct qlcnic_host_sds_ring *sds_ring = &recv_ctx->sds_rings[0];
struct sk_buff *skb;
int i;
for (i = 0; i < 16; i++) {
skb = dev_alloc_skb(QLC_ILB_PKT_SIZE);
qlcnic_create_loopback_buff(skb->data);
skb_put(skb, QLC_ILB_PKT_SIZE);
adapter->diag_cnt = 0;
qlcnic_xmit_frame(skb, adapter->netdev);
msleep(5);
qlcnic_process_rcv_ring_diag(sds_ring);
dev_kfree_skb_any(skb);
if (!adapter->diag_cnt)
return -1;
}
return 0;
}
static int qlcnic_loopback_test(struct net_device *netdev)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
int max_sds_rings = adapter->max_sds_rings;
int ret;
if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
return -EIO;
ret = qlcnic_diag_alloc_res(netdev, QLCNIC_LOOPBACK_TEST);
if (ret)
goto clear_it;
ret = qlcnic_set_ilb_mode(adapter);
if (ret)
goto done;
ret = qlcnic_do_ilb_test(adapter);
qlcnic_clear_ilb_mode(adapter);
done:
qlcnic_diag_free_res(netdev, max_sds_rings);
clear_it:
adapter->max_sds_rings = max_sds_rings;
clear_bit(__QLCNIC_RESETTING, &adapter->state);
return ret;
}
static int qlcnic_irq_test(struct net_device *netdev)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
@ -656,6 +731,11 @@ qlcnic_diag_test(struct net_device *dev, struct ethtool_test *eth_test,
data[2] = qlcnic_irq_test(dev);
if (data[2])
eth_test->flags |= ETH_TEST_FL_FAILED;
data[3] = qlcnic_loopback_test(dev);
if (data[3])
eth_test->flags |= ETH_TEST_FL_FAILED;
}
data[0] = qlcnic_reg_test(dev);

52
drivers/net/qlcnic/qlcnic_hw.c
View File

@ -1221,3 +1221,55 @@ int qlcnic_config_led(struct qlcnic_adapter *adapter, u32 state, u32 rate)
return rv;
}
static int qlcnic_set_fw_loopback(struct qlcnic_adapter *adapter, u32 flag)
{
struct qlcnic_nic_req req;
int rv;
u64 word;
memset(&req, 0, sizeof(struct qlcnic_nic_req));
req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
word = QLCNIC_H2C_OPCODE_CONFIG_LOOPBACK |
((u64)adapter->portnum << 16);
req.req_hdr = cpu_to_le64(word);
req.words[0] = cpu_to_le64(flag);
rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
if (rv)
dev_err(&adapter->pdev->dev,
"%sting loopback mode failed.\n",
flag ? "Set" : "Reset");
return rv;
}
int qlcnic_set_ilb_mode(struct qlcnic_adapter *adapter)
{
if (qlcnic_set_fw_loopback(adapter, 1))
return -EIO;
if (qlcnic_nic_set_promisc(adapter,
VPORT_MISS_MODE_ACCEPT_ALL)) {
qlcnic_set_fw_loopback(adapter, 0);
return -EIO;
}
msleep(1000);
return 0;
}
void qlcnic_clear_ilb_mode(struct qlcnic_adapter *adapter)
{
int mode = VPORT_MISS_MODE_DROP;
struct net_device *netdev = adapter->netdev;
qlcnic_set_fw_loopback(adapter, 0);
if (netdev->flags & IFF_PROMISC)
mode = VPORT_MISS_MODE_ACCEPT_ALL;
else if (netdev->flags & IFF_ALLMULTI)
mode = VPORT_MISS_MODE_ACCEPT_MULTI;
qlcnic_nic_set_promisc(adapter, mode);
}

75
drivers/net/qlcnic/qlcnic_init.c
View File

@ -1464,3 +1464,78 @@ qlcnic_post_rx_buffers_nodb(struct qlcnic_adapter *adapter,
spin_unlock(&rds_ring->lock);
}
static struct qlcnic_rx_buffer *
qlcnic_process_rcv_diag(struct qlcnic_adapter *adapter,
struct qlcnic_host_sds_ring *sds_ring,
int ring, u64 sts_data0)
{
struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
struct qlcnic_rx_buffer *buffer;
struct sk_buff *skb;
struct qlcnic_host_rds_ring *rds_ring;
int index, length, cksum, pkt_offset;
if (unlikely(ring >= adapter->max_rds_rings))
return NULL;
rds_ring = &recv_ctx->rds_rings[ring];
index = qlcnic_get_sts_refhandle(sts_data0);
if (unlikely(index >= rds_ring->num_desc))
return NULL;
buffer = &rds_ring->rx_buf_arr[index];
length = qlcnic_get_sts_totallength(sts_data0);
cksum = qlcnic_get_sts_status(sts_data0);
pkt_offset = qlcnic_get_sts_pkt_offset(sts_data0);
skb = qlcnic_process_rxbuf(adapter, rds_ring, index, cksum);
if (!skb)
return buffer;
skb_put(skb, rds_ring->skb_size);
if (pkt_offset)
skb_pull(skb, pkt_offset);
skb->truesize = skb->len + sizeof(struct sk_buff);
if (!qlcnic_check_loopback_buff(skb->data))
adapter->diag_cnt++;
dev_kfree_skb_any(skb);
return buffer;
}
void
qlcnic_process_rcv_ring_diag(struct qlcnic_host_sds_ring *sds_ring)
{
struct qlcnic_adapter *adapter = sds_ring->adapter;
struct status_desc *desc;
struct qlcnic_rx_buffer *rxbuf;
u64 sts_data0;
int opcode, ring, desc_cnt;
u32 consumer = sds_ring->consumer;
desc = &sds_ring->desc_head[consumer];
sts_data0 = le64_to_cpu(desc->status_desc_data[0]);
if (!(sts_data0 & STATUS_OWNER_HOST))
return;
desc_cnt = qlcnic_get_sts_desc_cnt(sts_data0);
opcode = qlcnic_get_sts_opcode(sts_data0);
ring = qlcnic_get_sts_type(sts_data0);
rxbuf = qlcnic_process_rcv_diag(adapter, sds_ring,
ring, sts_data0);
desc->status_desc_data[0] = cpu_to_le64(STATUS_OWNER_PHANTOM);
consumer = get_next_index(consumer, sds_ring->num_desc);
sds_ring->consumer = consumer;
writel(consumer, sds_ring->crb_sts_consumer);
}

20
drivers/net/qlcnic/qlcnic_main.c
View File

@ -65,8 +65,6 @@ static int __devinit qlcnic_probe(struct pci_dev *pdev,
static void __devexit qlcnic_remove(struct pci_dev *pdev);
static int qlcnic_open(struct net_device *netdev);
static int qlcnic_close(struct net_device *netdev);
static netdev_tx_t qlcnic_xmit_frame(struct sk_buff *,
struct net_device *);
static void qlcnic_tx_timeout(struct net_device *netdev);
static void qlcnic_tx_timeout_task(struct work_struct *work);
static void qlcnic_attach_work(struct work_struct *work);
@ -937,9 +935,11 @@ void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings)
struct qlcnic_host_sds_ring *sds_ring;
int ring;
for (ring = 0; ring < adapter->max_sds_rings; ring++) {
sds_ring = &adapter->recv_ctx.sds_rings[ring];
qlcnic_disable_int(sds_ring);
if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
for (ring = 0; ring < adapter->max_sds_rings; ring++) {
sds_ring = &adapter->recv_ctx.sds_rings[ring];
qlcnic_disable_int(sds_ring);
}
}
qlcnic_detach(adapter);
@ -977,9 +977,11 @@ int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
if (ret)
return ret;
for (ring = 0; ring < adapter->max_sds_rings; ring++) {
sds_ring = &adapter->recv_ctx.sds_rings[ring];
qlcnic_enable_int(sds_ring);
if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
for (ring = 0; ring < adapter->max_sds_rings; ring++) {
sds_ring = &adapter->recv_ctx.sds_rings[ring];
qlcnic_enable_int(sds_ring);
}
}
return 0;
@ -1549,7 +1551,7 @@ qlcnic_clear_cmddesc(u64 *desc)
desc[2] = 0ULL;
}
static netdev_tx_t
netdev_tx_t
qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);