diff options
| author | John Fastabend <john.r.fastabend@intel.com> | 2011-08-04 05:47:07 +0000 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2011-09-23 09:05:49 -0700 |
| commit | 4c09f3a0674119504af4e5805b327213055c412f (patch) | |
| tree | 645b923b51696deee6066f5a7690b35700729f02 /drivers/net/ethernet/intel/ixgbe/ixgbe_dcb.c | |
| parent | c6bda30a06d925b68d86e61c289d3ce980d4a36c (diff) | |
| download | linux-4c09f3a0674119504af4e5805b327213055c412f.tar.bz2 | |
ixgbe: DCB, do not call set_state() from IEEE mode
The DCB CEE command set_state() will complete successfully
but is misleading because it enables IEEE mode. After
this patch the command is failed.
And IEEE PFC/ETS is managed from ieee paths now instead
of using CEE primitives.
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/ixgbe/ixgbe_dcb.c')
| -rw-r--r-- | drivers/net/ethernet/intel/ixgbe/ixgbe_dcb.c | 36 |
1 files changed, 35 insertions, 1 deletions
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb.c index 9d88c31487bc..83bf7cc3fbf0 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb.c @@ -40,7 +40,8 @@ * hardware. The IEEE 802.1Qaz specification do not use bandwidth * groups so this is much simplified from the CEE case. */ -s32 ixgbe_ieee_credits(__u8 *bw, __u16 *refill, __u16 *max, int max_frame) +static s32 ixgbe_ieee_credits(__u8 *bw, __u16 *refill, + __u16 *max, int max_frame) { int min_percent = 100; int min_credit, multiplier; @@ -291,6 +292,39 @@ s32 ixgbe_dcb_hw_pfc_config(struct ixgbe_hw *hw, u8 pfc_en) return ret; } +s32 ixgbe_dcb_hw_ets(struct ixgbe_hw *hw, struct ieee_ets *ets, int max_frame) +{ + __u16 refill[IEEE_8021QAZ_MAX_TCS], max[IEEE_8021QAZ_MAX_TCS]; + __u8 prio_type[IEEE_8021QAZ_MAX_TCS]; + int i; + + /* naively give each TC a bwg to map onto CEE hardware */ + __u8 bwg_id[IEEE_8021QAZ_MAX_TCS] = {0, 1, 2, 3, 4, 5, 6, 7}; + + /* Map TSA onto CEE prio type */ + for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) { + switch (ets->tc_tsa[i]) { + case IEEE_8021QAZ_TSA_STRICT: + prio_type[i] = 2; + break; + case IEEE_8021QAZ_TSA_ETS: + prio_type[i] = 0; + break; + default: + /* Hardware only supports priority strict or + * ETS transmission selection algorithms if + * we receive some other value from dcbnl + * throw an error + */ + return -EINVAL; + } + } + + ixgbe_ieee_credits(ets->tc_tx_bw, refill, max, max_frame); + return ixgbe_dcb_hw_ets_config(hw, refill, max, + bwg_id, prio_type, ets->prio_tc); +} + s32 ixgbe_dcb_hw_ets_config(struct ixgbe_hw *hw, u16 *refill, u16 *max, u8 *bwg_id, u8 *prio_type, u8 *prio_tc) |