diff options
| author | Laura Mihaela Vasilescu <laura.vasilescu@rosedu.org> | 2013-08-01 00:19:54 +0400 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2013-08-22 13:26:27 +0400 |
| commit | ed12cc9a145132f5e59919570adff84b318f6010 (patch) | |
| tree | ae6d7238a3927d368445db24fbe4898bb95a08d0 /drivers/net/ethernet/intel/igb/igb.h | |
| parent | c342b39ea7ca0e46e093cdb346bf52b2b4e71b01 (diff) | |
| download | linux-ed12cc9a145132f5e59919570adff84b318f6010.tar.xz | |
igb: Expose RSS indirection table for ethtool
This patch adds the ethtool callbacks necessary to change the RETA
indirection table from userspace.
In order to achieve this, we add the indirection table field (rss_indir_tbl)
in the board specific data structure (struct igb_adapter) to preserve the
values across hardware resets.
The indirection table must be initialized with default values in the
following cases:
* at module init time
* when the number of RX queues changes.
For this reason we add a new field (rss_indir_tbl_init) in igb_adapter
that keeps track of the number of RX queues. Whenever the number of RX
queues changes, the rss_indir_tbl is modified and initialized with default
values. The rss_indir_tbl_init is updated accordingly.
CC: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Laura Mihaela Vasilescu <laura.vasilescu@rosedu.org>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/igb/igb.h')
| -rw-r--r-- | drivers/net/ethernet/intel/igb/igb.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/igb/igb.h b/drivers/net/ethernet/intel/igb/igb.h index 5a2659bf0c32..c1fae7aa0bd5 100644 --- a/drivers/net/ethernet/intel/igb/igb.h +++ b/drivers/net/ethernet/intel/igb/igb.h @@ -446,6 +446,8 @@ struct igb_adapter { struct i2c_algo_bit_data i2c_algo; struct i2c_adapter i2c_adap; struct i2c_client *i2c_client; + u32 rss_indir_tbl_init; + u8 rss_indir_tbl[IGB_RETA_SIZE]; }; #define IGB_FLAG_HAS_MSI (1 << 0) @@ -482,6 +484,7 @@ extern int igb_up(struct igb_adapter *); extern void igb_down(struct igb_adapter *); extern void igb_reinit_locked(struct igb_adapter *); extern void igb_reset(struct igb_adapter *); +extern void igb_write_rss_indir_tbl(struct igb_adapter *); extern int igb_set_spd_dplx(struct igb_adapter *, u32, u8); extern int igb_setup_tx_resources(struct igb_ring *); extern int igb_setup_rx_resources(struct igb_ring *); |