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_do_lb_test(struct qlcnic_adapter *adapter, u8 mode)
{
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, loop, cnt = 0;
for (i = 0; i < QLCNIC_NUM_ILB_PKT; i++) {
skb = netdev_alloc_skb(adapter->netdev, QLCNIC_ILB_PKT_SIZE);
qlcnic_create_loopback_buff(skb->data, adapter->mac_addr);
skb_put(skb, QLCNIC_ILB_PKT_SIZE);
adapter->diag_cnt = 0;
qlcnic_xmit_frame(skb, adapter->netdev);
loop = 0;
do {
msleep(1);
qlcnic_process_rcv_ring_diag(sds_ring);
if (loop++ > QLCNIC_ILB_MAX_RCV_LOOP)
break;
} while (!adapter->diag_cnt);
dev_kfree_skb_any(skb);
if (!adapter->diag_cnt)
QLCDB(adapter, DRV,
"LB Test: packet #%d was not received\n", i + 1);
else
cnt++;
}
if (cnt != i) {
dev_warn(&adapter->pdev->dev, "LB Test failed\n");
if (mode != QLCNIC_ILB_MODE) {
dev_warn(&adapter->pdev->dev,
"WARNING: Please make sure external"
"loopback connector is plugged in\n");
}
return -1;
}
return 0;
}
int qlcnic_do_lb_test(struct qlcnic_adapter *adapter, u8 mode)
{
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, loop, cnt = 0;
for (i = 0; i < QLCNIC_NUM_ILB_PKT; i++) {
skb = netdev_alloc_skb(adapter->netdev, QLCNIC_ILB_PKT_SIZE);
qlcnic_create_loopback_buff(skb->data, adapter->mac_addr);
skb_put(skb, QLCNIC_ILB_PKT_SIZE);
adapter->ahw->diag_cnt = 0;
qlcnic_xmit_frame(skb, adapter->netdev);
loop = 0;
do {
msleep(QLCNIC_LB_PKT_POLL_DELAY_MSEC);
qlcnic_process_rcv_ring_diag(sds_ring);
if (loop++ > QLCNIC_LB_PKT_POLL_COUNT)
break;
} while (!adapter->ahw->diag_cnt);
dev_kfree_skb_any(skb);
if (!adapter->ahw->diag_cnt)
dev_warn(&adapter->pdev->dev,
"LB Test: packet #%d was not received\n",
i + 1);
else
cnt++;
}
if (cnt != i) {
dev_err(&adapter->pdev->dev,
"LB Test: failed, TX[%d], RX[%d]\n", i, cnt);
if (mode != QLCNIC_ILB_MODE)
dev_warn(&adapter->pdev->dev,
"WARNING: Please check loopback cable\n");
return -1;
}
return 0;
}
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, loop, cnt = 0;
for (i = 0; i < QLC_NUM_ILB_PKT; 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);
loop = 0;
do {
msleep(1);
qlcnic_process_rcv_ring_diag(sds_ring);
} while (loop++ < QLC_ILB_MAX_RCV_LOOP &&
!adapter->diag_cnt);
dev_kfree_skb_any(skb);
if (!adapter->diag_cnt)
dev_warn(&adapter->pdev->dev, "ILB Test: %dth packet"
" not recevied\n", i + 1);
else
cnt++;
}
if (cnt != i) {
dev_warn(&adapter->pdev->dev, "ILB Test failed\n");
return -1;
}
return 0;
}
int qlcnic_loopback_test(struct net_device *netdev, u8 mode)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
int max_sds_rings = adapter->max_sds_rings;
struct qlcnic_host_sds_ring *sds_ring;
struct qlcnic_hardware_context *ahw = adapter->ahw;
int loop = 0;
int ret;
if (qlcnic_83xx_check(adapter))
return qlcnic_83xx_loopback_test(netdev, mode);
if (!(ahw->capabilities & QLCNIC_FW_CAPABILITY_MULTI_LOOPBACK)) {
dev_info(&adapter->pdev->dev,
"Firmware do not support loopback test\n");
return -EOPNOTSUPP;
}
dev_warn(&adapter->pdev->dev, "%s loopback test in progress\n",
mode == QLCNIC_ILB_MODE ? "internal" : "external");
if (ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
dev_warn(&adapter->pdev->dev,
"Loopback test not supported in nonprivileged mode\n");
return 0;
}
if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
return -EBUSY;
ret = qlcnic_diag_alloc_res(netdev, QLCNIC_LOOPBACK_TEST);
if (ret)
goto clear_it;
sds_ring = &adapter->recv_ctx->sds_rings[0];
ret = qlcnic_set_lb_mode(adapter, mode);
if (ret)
goto free_res;
ahw->diag_cnt = 0;
do {
msleep(500);
qlcnic_process_rcv_ring_diag(sds_ring);
if (loop++ > QLCNIC_ILB_MAX_RCV_LOOP) {
netdev_info(netdev, "firmware didnt respond to loopback"
" configure request\n");
ret = -QLCNIC_FW_NOT_RESPOND;
goto free_res;
} else if (adapter->ahw->diag_cnt) {
ret = adapter->ahw->diag_cnt;
goto free_res;
}
} while (!QLCNIC_IS_LB_CONFIGURED(ahw->loopback_state));
ret = qlcnic_do_lb_test(adapter, mode);
qlcnic_clear_lb_mode(adapter, mode);
free_res:
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;
}