@@ -854,6 +854,7 @@ struct i40e_vsi {
u64 rx_buf_failed;
u64 rx_page_failed;
u64 rx_page_reuse;
+ u64 rx_page_alloc;
/* These are containers of ring pointers, allocated at run-time */
struct i40e_ring **rx_rings;
@@ -296,6 +296,7 @@ static const struct i40e_stats i40e_gstrings_misc_stats[] = {
I40E_VSI_STAT("rx_alloc_fail", rx_buf_failed),
I40E_VSI_STAT("rx_pg_alloc_fail", rx_page_failed),
I40E_VSI_STAT("rx_cache_reuse", rx_page_reuse),
+ I40E_VSI_STAT("rx_cache_alloc", rx_page_alloc),
};
/* These PF_STATs might look like duplicates of some NETDEV_STATs,
@@ -812,7 +812,7 @@ static void i40e_update_vsi_stats(struct i40e_vsi *vsi)
struct i40e_eth_stats *es; /* device's eth stats */
u64 tx_restart, tx_busy;
struct i40e_ring *p;
- u64 rx_page, rx_buf, rx_reuse;
+ u64 rx_page, rx_buf, rx_reuse, rx_alloc;
u64 bytes, packets;
unsigned int start;
u64 tx_linearize;
@@ -839,6 +839,7 @@ static void i40e_update_vsi_stats(struct i40e_vsi *vsi)
rx_page = 0;
rx_buf = 0;
rx_reuse = 0;
+ rx_reuse = 0;
rcu_read_lock();
for (q = 0; q < vsi->num_queue_pairs; q++) {
/* locate Tx ring */
@@ -873,6 +874,7 @@ static void i40e_update_vsi_stats(struct i40e_vsi *vsi)
rx_buf += p->rx_stats.alloc_buff_failed;
rx_page += p->rx_stats.alloc_page_failed;
rx_reuse += p->rx_stats.page_reuse_count;
+ rx_alloc += p->rx_stats.page_alloc_count;
if (i40e_enabled_xdp_vsi(vsi)) {
/* locate XDP ring */
@@ -901,6 +903,7 @@ static void i40e_update_vsi_stats(struct i40e_vsi *vsi)
vsi->rx_page_failed = rx_page;
vsi->rx_buf_failed = rx_buf;
vsi->rx_page_reuse = rx_reuse;
+ vsi->rx_page_alloc = rx_alloc;
ns->rx_packets = rx_p;
ns->rx_bytes = rx_b;
@@ -1671,6 +1671,8 @@ static bool i40e_alloc_mapped_page(struct i40e_ring *rx_ring,
if (unlikely(!page)) {
rx_ring->rx_stats.alloc_page_failed++;
return false;
+ } else {
+ rx_ring->rx_stats.page_alloc_count++;
}
/* map page for use */
@@ -299,6 +299,7 @@ struct i40e_rx_queue_stats {
u64 alloc_buff_failed;
u64 page_reuse_count;
u64 realloc_count;
+ u64 page_alloc_count;
};
enum i40e_ring_state_t {
Add a counter for new page allocations in the i40e RX path. This stat is accessible with ethtool. Signed-off-by: Joe Damato <jdamato@fastly.com> --- drivers/net/ethernet/intel/i40e/i40e.h | 1 + drivers/net/ethernet/intel/i40e/i40e_ethtool.c | 1 + drivers/net/ethernet/intel/i40e/i40e_main.c | 5 ++++- drivers/net/ethernet/intel/i40e/i40e_txrx.c | 2 ++ drivers/net/ethernet/intel/i40e/i40e_txrx.h | 1 + 5 files changed, 9 insertions(+), 1 deletion(-)