Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-12-07 03:21:32 +00:00
Code Issues Packages Projects Releases Wiki Activity

i40e: Add a stat tracking new RX page allocations

Browse Source 
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>
Tested-by: Dave Switzer <david.switzer@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
This commit is contained in:
Joe Damato 2021-12-17 11:35:17 -08:00 committed by Tony Nguyen
parent b3936d2767
commit 453f830548
5 changed files with 9 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/net/ethernet/intel/i40e/i40e.h
View File

@ -855,6 +855,7 @@ 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;

1
drivers/net/ethernet/intel/i40e/i40e_ethtool.c
View File

@ -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,

5
drivers/net/ethernet/intel/i40e/i40e_main.c
View File

@ -773,8 +773,8 @@ void i40e_update_veb_stats(struct i40e_veb *veb)
**/
static void i40e_update_vsi_stats(struct i40e_vsi *vsi)
{
u64 rx_page, rx_buf, rx_reuse, rx_alloc;
struct i40e_pf *pf = vsi->back;
u64 rx_page, rx_buf, rx_reuse;
struct rtnl_link_stats64 *ons;
struct rtnl_link_stats64 *ns; /* netdev stats */
struct i40e_eth_stats *oes;
@ -807,6 +807,7 @@ static void i40e_update_vsi_stats(struct i40e_vsi *vsi)
rx_page = 0;
rx_buf = 0;
rx_reuse = 0;
rx_alloc = 0;
rcu_read_lock();
for (q = 0; q < vsi->num_queue_pairs; q++) {
/* locate Tx ring */
@ -841,6 +842,7 @@ 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 */
@ -869,6 +871,7 @@ 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;

2
drivers/net/ethernet/intel/i40e/i40e_txrx.c
View File

@ -1673,6 +1673,8 @@ static bool i40e_alloc_mapped_page(struct i40e_ring *rx_ring,
return false;
}
rx_ring->rx_stats.page_alloc_count++;
/* map page for use */
dma = dma_map_page_attrs(rx_ring->dev, page, 0,
i40e_rx_pg_size(rx_ring),

1
drivers/net/ethernet/intel/i40e/i40e_txrx.h
View File

@ -298,6 +298,7 @@ struct i40e_rx_queue_stats {
u64 alloc_page_failed;
u64 alloc_buff_failed;
u64 page_reuse_count;
u64 page_alloc_count;
};
enum i40e_ring_state_t {