{
struct ixgbevf_adapter *adapter = netdev_priv(netdev);
struct ixgbevf_ring *tx_ring = NULL, *rx_ring = NULL;
- int i, err;
+ int i, err = 0;
u32 new_rx_count, new_tx_count;
- bool need_tx_update = false;
- bool need_rx_update = false;
if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
return -EINVAL;
while (test_and_set_bit(__IXGBEVF_RESETTING, &adapter->state))
msleep(1);
- if (new_tx_count != adapter->tx_ring_count) {
- tx_ring = kcalloc(adapter->num_tx_queues,
- sizeof(struct ixgbevf_ring), GFP_KERNEL);
- if (!tx_ring) {
- err = -ENOMEM;
- goto err_setup;
- }
- memcpy(tx_ring, adapter->tx_ring,
- adapter->num_tx_queues * sizeof(struct ixgbevf_ring));
- for (i = 0; i < adapter->num_tx_queues; i++) {
- tx_ring[i].count = new_tx_count;
- err = ixgbevf_setup_tx_resources(adapter,
- &tx_ring[i]);
- if (err) {
- while (i) {
- i--;
- ixgbevf_free_tx_resources(adapter,
- &tx_ring[i]);
- }
- kfree(tx_ring);
- goto err_setup;
- }
- tx_ring[i].v_idx = adapter->tx_ring[i].v_idx;
- }
- need_tx_update = true;
+ /*
+ * If the adapter isn't up and running then just set the
+ * new parameters and scurry for the exits.
+ */
+ if (!netif_running(adapter->netdev)) {
+ for (i = 0; i < adapter->num_tx_queues; i++)
+ adapter->tx_ring[i].count = new_tx_count;
+ for (i = 0; i < adapter->num_rx_queues; i++)
+ adapter->rx_ring[i].count = new_rx_count;
+ adapter->tx_ring_count = new_tx_count;
+ adapter->rx_ring_count = new_rx_count;
+ goto clear_reset;
}
- if (new_rx_count != adapter->rx_ring_count) {
- rx_ring = kcalloc(adapter->num_rx_queues,
- sizeof(struct ixgbevf_ring), GFP_KERNEL);
- if ((!rx_ring) && (need_tx_update)) {
- err = -ENOMEM;
- goto err_rx_setup;
- }
- memcpy(rx_ring, adapter->rx_ring,
- adapter->num_rx_queues * sizeof(struct ixgbevf_ring));
- for (i = 0; i < adapter->num_rx_queues; i++) {
- rx_ring[i].count = new_rx_count;
- err = ixgbevf_setup_rx_resources(adapter,
- &rx_ring[i]);
- if (err) {
- while (i) {
- i--;
- ixgbevf_free_rx_resources(adapter,
- &rx_ring[i]);
- }
- kfree(rx_ring);
- goto err_rx_setup;
- }
- rx_ring[i].v_idx = adapter->rx_ring[i].v_idx;
- }
- need_rx_update = true;
+ tx_ring = kcalloc(adapter->num_tx_queues,
+ sizeof(struct ixgbevf_ring), GFP_KERNEL);
+ if (!tx_ring) {
+ err = -ENOMEM;
+ goto clear_reset;
}
-err_rx_setup:
- /* if rings need to be updated, here's the place to do it in one shot */
- if (need_tx_update || need_rx_update) {
- if (netif_running(netdev))
- ixgbevf_down(adapter);
+ rx_ring = kcalloc(adapter->num_rx_queues,
+ sizeof(struct ixgbevf_ring), GFP_KERNEL);
+ if (!rx_ring) {
+ err = -ENOMEM;
+ goto err_rx_setup;
}
- /* tx */
- if (need_tx_update) {
- kfree(adapter->tx_ring);
- adapter->tx_ring = tx_ring;
- tx_ring = NULL;
- adapter->tx_ring_count = new_tx_count;
+ ixgbevf_down(adapter);
+
+ memcpy(tx_ring, adapter->tx_ring,
+ adapter->num_tx_queues * sizeof(struct ixgbevf_ring));
+ for (i = 0; i < adapter->num_tx_queues; i++) {
+ tx_ring[i].count = new_tx_count;
+ err = ixgbevf_setup_tx_resources(adapter, &tx_ring[i]);
+ if (err) {
+ while (i) {
+ i--;
+ ixgbevf_free_tx_resources(adapter,
+ &tx_ring[i]);
+ }
+ goto err_tx_ring_setup;
+ }
+ tx_ring[i].v_idx = adapter->tx_ring[i].v_idx;
}
- /* rx */
- if (need_rx_update) {
- kfree(adapter->rx_ring);
- adapter->rx_ring = rx_ring;
- rx_ring = NULL;
- adapter->rx_ring_count = new_rx_count;
+ memcpy(rx_ring, adapter->rx_ring,
+ adapter->num_rx_queues * sizeof(struct ixgbevf_ring));
+ for (i = 0; i < adapter->num_rx_queues; i++) {
+ rx_ring[i].count = new_rx_count;
+ err = ixgbevf_setup_rx_resources(adapter, &rx_ring[i]);
+ if (err) {
+ while (i) {
+ i--;
+ ixgbevf_free_rx_resources(adapter,
+ &rx_ring[i]);
+ }
+ goto err_rx_ring_setup;
+ }
+ rx_ring[i].v_idx = adapter->rx_ring[i].v_idx;
}
+ /*
+ * Only switch to new rings if all the prior allocations
+ * and ring setups have succeeded.
+ */
+ kfree(adapter->tx_ring);
+ adapter->tx_ring = tx_ring;
+ adapter->tx_ring_count = new_tx_count;
+
+ kfree(adapter->rx_ring);
+ adapter->rx_ring = rx_ring;
+ adapter->rx_ring_count = new_rx_count;
+
/* success! */
- err = 0;
- if (netif_running(netdev))
- ixgbevf_up(adapter);
+ ixgbevf_up(adapter);
-err_setup:
+ goto clear_reset;
+
+err_rx_ring_setup:
+ for(i = 0; i < adapter->num_tx_queues; i++)
+ ixgbevf_free_tx_resources(adapter, &tx_ring[i]);
+
+err_tx_ring_setup:
+ kfree(rx_ring);
+
+err_rx_setup:
+ kfree(tx_ring);
+
+clear_reset:
clear_bit(__IXGBEVF_RESETTING, &adapter->state);
return err;
}
#define TABLE64_TEST_HI 6
/* default VF register test */
-static struct ixgbevf_reg_test reg_test_vf[] = {
+static const struct ixgbevf_reg_test reg_test_vf[] = {
{ IXGBE_VFRDBAL(0), 2, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFF80 },
{ IXGBE_VFRDBAH(0), 2, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
{ IXGBE_VFRDLEN(0), 2, PATTERN_TEST, 0x000FFF80, 0x000FFFFF },
{ 0, 0, 0, 0 }
};
+static const u32 register_test_patterns[] = {
+ 0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF
+};
+
#define REG_PATTERN_TEST(R, M, W) \
{ \
u32 pat, val, before; \
- const u32 _test[] = {0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF}; \
- for (pat = 0; pat < ARRAY_SIZE(_test); pat++) { \
+ for (pat = 0; pat < ARRAY_SIZE(register_test_patterns); pat++) { \
before = readl(adapter->hw.hw_addr + R); \
- writel((_test[pat] & W), (adapter->hw.hw_addr + R)); \
+ writel((register_test_patterns[pat] & W), \
+ (adapter->hw.hw_addr + R)); \
val = readl(adapter->hw.hw_addr + R); \
- if (val != (_test[pat] & W & M)) { \
+ if (val != (register_test_patterns[pat] & W & M)) { \
hw_dbg(&adapter->hw, \
"pattern test reg %04X failed: got " \
"0x%08X expected 0x%08X\n", \
- R, val, (_test[pat] & W & M)); \
+ R, val, (register_test_patterns[pat] & W & M)); \
*data = R; \
writel(before, adapter->hw.hw_addr + R); \
return 1; \
static int ixgbevf_reg_test(struct ixgbevf_adapter *adapter, u64 *data)
{
- struct ixgbevf_reg_test *test;
+ const struct ixgbevf_reg_test *test;
u32 i;
test = reg_test_vf;
git.openpandora.org / pandora-kernel.git / blobdiff