int flush;
int packet_count;
struct sk_buff **skbs;
+
+ /* Checksums are being offloaded */
+ int offload_csum;
+
atomic_t rx_good;
atomic_t rx_bad;
struct efx_loopback_payload payload;
payload = &state->payload;
- received = (struct efx_loopback_payload *)(char *) buf_ptr;
+ received = (struct efx_loopback_payload *) buf_ptr;
received->ip.saddr = payload->ip.saddr;
- received->ip.check = payload->ip.check;
-
+ if (state->offload_csum)
+ received->ip.check = payload->ip.check;
+
/* Check that header exists */
if (pkt_len < sizeof(received->header)) {
EFX_ERR(efx, "saw runt RX packet (length %d) in %s loopback "
smp_wmb();
}
-static int efx_tx_loopback(struct efx_tx_queue *tx_queue)
+static int efx_begin_loopback(struct efx_tx_queue *tx_queue)
{
struct efx_nic *efx = tx_queue->efx;
struct efx_selftest_state *state = efx->loopback_selftest;
* interrupt handler. */
smp_wmb();
- if (NET_DEV_REGISTERED(efx))
+ if (efx_dev_registered(efx))
netif_tx_lock_bh(efx->net_dev);
rc = efx_xmit(efx, tx_queue, skb);
- if (NET_DEV_REGISTERED(efx))
+ if (efx_dev_registered(efx))
netif_tx_unlock_bh(efx->net_dev);
if (rc != NETDEV_TX_OK) {
return 0;
}
-static int efx_rx_loopback(struct efx_tx_queue *tx_queue,
- struct efx_loopback_self_tests *lb_tests)
+static int efx_poll_loopback(struct efx_nic *efx)
+{
+ struct efx_selftest_state *state = efx->loopback_selftest;
+ struct efx_channel *channel;
+
+ /* NAPI polling is not enabled, so process channels
+ * synchronously */
+ efx_for_each_channel_with_interrupt(channel, efx) {
+ if (channel->work_pending)
+ efx_process_channel_now(channel);
+ }
+ return atomic_read(&state->rx_good) == state->packet_count;
+}
+
+static int efx_end_loopback(struct efx_tx_queue *tx_queue,
+ struct efx_loopback_self_tests *lb_tests)
{
struct efx_nic *efx = tx_queue->efx;
struct efx_selftest_state *state = efx->loopback_selftest;
int tx_done = 0, rx_good, rx_bad;
int i, rc = 0;
- if (NET_DEV_REGISTERED(efx))
+ if (efx_dev_registered(efx))
netif_tx_lock_bh(efx->net_dev);
/* Count the number of tx completions, and decrement the refcnt. Any
dev_kfree_skb_any(skb);
}
- if (NET_DEV_REGISTERED(efx))
+ if (efx_dev_registered(efx))
netif_tx_unlock_bh(efx->net_dev);
/* Check TX completion and received packet counts */
{
struct efx_nic *efx = tx_queue->efx;
struct efx_selftest_state *state = efx->loopback_selftest;
- struct efx_channel *channel;
- int i, rc = 0;
+ int i, begin_rc, end_rc;
for (i = 0; i < loopback_test_level; i++) {
/* Determine how many packets to send */
state->packet_count = min(1 << (i << 2), state->packet_count);
state->skbs = kzalloc(sizeof(state->skbs[0]) *
state->packet_count, GFP_KERNEL);
+ if (!state->skbs)
+ return -ENOMEM;
state->flush = 0;
EFX_LOG(efx, "TX queue %d testing %s loopback with %d "
state->packet_count);
efx_iterate_state(efx);
- rc = efx_tx_loopback(tx_queue);
-
- /* NAPI polling is not enabled, so process channels synchronously */
- schedule_timeout_uninterruptible(HZ / 50);
- efx_for_each_channel_with_interrupt(channel, efx) {
- if (channel->work_pending)
- efx_process_channel_now(channel);
+ begin_rc = efx_begin_loopback(tx_queue);
+
+ /* This will normally complete very quickly, but be
+ * prepared to wait up to 100 ms. */
+ msleep(1);
+ if (!efx_poll_loopback(efx)) {
+ msleep(100);
+ efx_poll_loopback(efx);
}
- rc |= efx_rx_loopback(tx_queue, lb_tests);
+ end_rc = efx_end_loopback(tx_queue, lb_tests);
kfree(state->skbs);
- if (rc) {
+ if (begin_rc || end_rc) {
/* Wait a while to ensure there are no packets
* floating around after a failure. */
schedule_timeout_uninterruptible(HZ / 10);
- return rc;
+ return begin_rc ? begin_rc : end_rc;
}
}
"of %d packets\n", tx_queue->queue, LOOPBACK_MODE(efx),
state->packet_count);
- return rc;
+ return 0;
}
static int efx_test_loopbacks(struct efx_nic *efx,
struct ethtool_cmd ecmd, ecmd_loopback;
struct efx_tx_queue *tx_queue;
enum efx_loopback_mode old_mode, mode;
- int count, rc = 0, link_up;
-
+ int count, rc, link_up;
+
rc = efx_ethtool_get_settings(efx->net_dev, &ecmd);
if (rc) {
EFX_ERR(efx, "could not get GMII settings\n");
/* Test every TX queue */
efx_for_each_tx_queue(tx_queue, efx) {
- rc |= efx_test_loopback(tx_queue,
- &tests->loopback[mode]);
+ state->offload_csum = (tx_queue->queue ==
+ EFX_TX_QUEUE_OFFLOAD_CSUM);
+ rc = efx_test_loopback(tx_queue,
+ &tests->loopback[mode]);
if (rc)
goto out;
}
int efx_online_test(struct efx_nic *efx, struct efx_self_tests *tests)
{
struct efx_channel *channel;
- int rc = 0;
+ int rc;
- EFX_LOG(efx, "performing online self-tests\n");
-
- rc |= efx_test_interrupts(efx, tests);
+ rc = efx_test_interrupts(efx, tests);
+ if (rc)
+ return rc;
efx_for_each_channel(channel, efx) {
if (channel->has_interrupt)
- rc |= efx_test_eventq_irq(channel, tests);
+ rc = efx_test_eventq_irq(channel, tests);
else
- rc |= efx_test_eventq(channel, tests);
+ rc = efx_test_eventq(channel, tests);
+ if (rc)
+ return rc;
}
- rc |= efx_test_phy(efx, tests);
-
- if (rc)
- EFX_ERR(efx, "failed online self-tests\n");
-
+ rc = efx_test_phy(efx, tests);
return rc;
}
struct efx_self_tests *tests, unsigned int loopback_modes)
{
struct efx_selftest_state *state;
- int rc = 0;
-
- EFX_LOG(efx, "performing offline self-tests\n");
+ int rc;
/* Create a selftest_state structure to hold state for the test */
state = kzalloc(sizeof(*state), GFP_KERNEL);
- if (state == NULL) {
- rc = -ENOMEM;
- goto out;
- }
+ if (state == NULL)
+ return -ENOMEM;
/* Set the port loopback_selftest member. From this point on
* all received packets will be dropped. Mark the state as
* "flushing" so all inflight packets are dropped */
BUG_ON(efx->loopback_selftest);
state->flush = 1;
- efx->loopback_selftest = (void *)state;
+ efx->loopback_selftest = state;
rc = efx_test_loopbacks(efx, tests, loopback_modes);
wmb();
kfree(state);
- out:
- if (rc)
- EFX_ERR(efx, "failed offline self-tests\n");
-
return rc;
}
projects / deliverable / linux.git / blobdiff