diff options
| author | Tirthendu Sarkar <tirthendu.sarkar@intel.com> | 2023-03-09 21:56:13 +0300 |
|---|---|---|
| committer | Tony Nguyen <anthony.l.nguyen@intel.com> | 2023-03-10 00:11:18 +0300 |
| commit | e9031f2da1aef34b0b4c659ead613c335b46ae92 (patch) | |
| tree | aea6a487121e73728678527f9195a7031a6c25e2 /drivers/net/ethernet/intel/i40e/i40e_txrx.h | |
| parent | 2bc0de9aca3ebdf24674f5a2a7890fde6304f5ca (diff) | |
| download | linux-e9031f2da1aef34b0b4c659ead613c335b46ae92.tar.xz | |
i40e: introduce next_to_process to i40e_ring
Add a new field called next_to_process in the i40e_ring that is
advanced for every buffer and change the semantics of next_to_clean to
point to the first buffer of a packet. Driver will use next_to_process
in the same way next_to_clean was used previously.
For the non multi-buffer case, next_to_process and next_to_clean will
always be the same since each packet consists of a single buffer.
Signed-off-by: Tirthendu Sarkar <tirthendu.sarkar@intel.com>
Tested-by: Chandan Kumar Rout <chandanx.rout@intel.com> (A Contingent Worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/i40e/i40e_txrx.h')
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_txrx.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.h b/drivers/net/ethernet/intel/i40e/i40e_txrx.h index eec4a4a99b9c..75888a9ab06d 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_txrx.h +++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.h @@ -337,6 +337,10 @@ struct i40e_ring { u8 dcb_tc; /* Traffic class of ring */ u8 __iomem *tail; + /* Next descriptor to be processed; next_to_clean is updated only on + * processing EOP descriptor + */ + u16 next_to_process; /* high bit set means dynamic, use accessor routines to read/write. * hardware only supports 2us resolution for the ITR registers. * these values always store the USER setting, and must be converted |