Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-12-08 03:52:16 +00:00
Code Issues Packages Projects Releases Wiki Activity

i40e/i40evf: rename bytes_per_int to bytes_per_usec

Browse Source 
This value is not calculating bytes_per_int, which would actually just
be bytes/ITR_COUNTDOWN_START, but rather it's calculating bytes/usecs.

Rename the variable for clarity so that future developers understand
what the value is actually calculating.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Jacob Keller 2017-07-14 09:10:14 -04:00 committed by Jeff Kirsher
parent fa8fefaa67
commit 2b634bb068
2 changed files with 12 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/net/ethernet/intel/i40e/i40e_txrx.c
View File

@ -960,14 +960,14 @@ static bool i40e_set_new_dynamic_itr(struct i40e_ring_container *rc)
{
enum i40e_latency_range new_latency_range = rc->latency_range;
u32 new_itr = rc->itr;
int bytes_per_int;
int bytes_per_usec;
unsigned int usecs, estimated_usecs;
if (rc->total_packets == 0 || !rc->itr)
return false;
usecs = (rc->itr << 1) * ITR_COUNTDOWN_START;
bytes_per_int = rc->total_bytes / usecs;
bytes_per_usec = rc->total_bytes / usecs;
/* The calculations in this algorithm depend on interrupts actually
* firing at the ITR rate. This may not happen if the packet rate is
@ -993,18 +993,18 @@ static bool i40e_set_new_dynamic_itr(struct i40e_ring_container *rc)
*/
switch (new_latency_range) {
case I40E_LOWEST_LATENCY:
if (bytes_per_int > 10)
if (bytes_per_usec > 10)
new_latency_range = I40E_LOW_LATENCY;
break;
case I40E_LOW_LATENCY:
if (bytes_per_int > 20)
if (bytes_per_usec > 20)
new_latency_range = I40E_BULK_LATENCY;
else if (bytes_per_int <= 10)
else if (bytes_per_usec <= 10)
new_latency_range = I40E_LOWEST_LATENCY;
break;
case I40E_BULK_LATENCY:
default:
if (bytes_per_int <= 20)
if (bytes_per_usec <= 20)
new_latency_range = I40E_LOW_LATENCY;
break;
}

12
drivers/net/ethernet/intel/i40evf/i40e_txrx.c
View File

@ -358,14 +358,14 @@ static bool i40e_set_new_dynamic_itr(struct i40e_ring_container *rc)
{
enum i40e_latency_range new_latency_range = rc->latency_range;
u32 new_itr = rc->itr;
int bytes_per_int;
int bytes_per_usec;
unsigned int usecs, estimated_usecs;
if (rc->total_packets == 0 || !rc->itr)
return false;
usecs = (rc->itr << 1) * ITR_COUNTDOWN_START;
bytes_per_int = rc->total_bytes / usecs;
bytes_per_usec = rc->total_bytes / usecs;
/* The calculations in this algorithm depend on interrupts actually
* firing at the ITR rate. This may not happen if the packet rate is
@ -391,18 +391,18 @@ static bool i40e_set_new_dynamic_itr(struct i40e_ring_container *rc)
*/
switch (new_latency_range) {
case I40E_LOWEST_LATENCY:
if (bytes_per_int > 10)
if (bytes_per_usec > 10)
new_latency_range = I40E_LOW_LATENCY;
break;
case I40E_LOW_LATENCY:
if (bytes_per_int > 20)
if (bytes_per_usec > 20)
new_latency_range = I40E_BULK_LATENCY;
else if (bytes_per_int <= 10)
else if (bytes_per_usec <= 10)
new_latency_range = I40E_LOWEST_LATENCY;
break;
case I40E_BULK_LATENCY:
default:
if (bytes_per_int <= 20)
if (bytes_per_usec <= 20)
new_latency_range = I40E_LOW_LATENCY;
break;
}