diff options
| author | Yuval Mintz <Yuval.Mintz@qlogic.com> | 2015-08-17 08:28:25 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-08-17 20:27:57 +0300 |
| commit | da3cc2da7c08dc1f4371a4cc2eb83b22a0cf83a8 (patch) | |
| tree | 159f5e9565c5078b331bc46600161fcc00ffaa6e /drivers/net/ethernet | |
| parent | 1e3136789975f03e461798149309034e5213c1b4 (diff) | |
| download | linux-da3cc2da7c08dc1f4371a4cc2eb83b22a0cf83a8.tar.xz | |
bnx2: Fix bandwidth allocation for some MF modes
Management firmware tells driver in case bandwidth configuration for
a specific function exists, but [regretably] the same field has different
meanings depending on the multi-function mode - it can either be
a percentile value or an actual speed.
For newer multi-function modes current logic is incorrect -
driver understands values as actual speeds instead of percentages,
causing the resulting chip configuration to be incorrect.
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet')
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnx2x/bnx2x.h | 4 | ||||
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c | 2 | ||||
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c | 2 |
3 files changed, 6 insertions, 2 deletions
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h index 5762c485ea06..e28c90c15e0b 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h @@ -2571,6 +2571,10 @@ void bnx2x_notify_link_changed(struct bnx2x *bp); (IS_MF_SD_STORAGE_PERSONALITY_ONLY(bp) || \ IS_MF_SI_STORAGE_PERSONALITY_ONLY(bp)) +/* Determines whether BW configuration arrives in 100Mb units or in + * percentages from actual physical link speed. + */ +#define IS_MF_PERCENT_BW(bp) (IS_MF_SI(bp) || IS_MF_UFP(bp) || IS_MF_BD(bp)) #define SET_FLAG(value, mask, flag) \ do {\ diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c index a2bb1f0934d5..44173be5cbf0 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c @@ -1190,7 +1190,7 @@ u16 bnx2x_get_mf_speed(struct bnx2x *bp) /* Calculate the current MAX line speed limit for the MF * devices */ - if (IS_MF_SI(bp)) + if (IS_MF_PERCENT_BW(bp)) line_speed = (line_speed * maxCfg) / 100; else { /* SD mode */ u16 vn_max_rate = maxCfg * 100; diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c index ad73a60de333..eafd25d8142a 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c @@ -2494,7 +2494,7 @@ static void bnx2x_calc_vn_max(struct bnx2x *bp, int vn, else { u32 maxCfg = bnx2x_extract_max_cfg(bp, vn_cfg); - if (IS_MF_SI(bp)) { + if (IS_MF_PERCENT_BW(bp)) { /* maxCfg in percents of linkspeed */ vn_max_rate = (bp->link_vars.line_speed * maxCfg) / 100; } else /* SD modes */ |