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atlantic: Increase delay for fw transactions

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commit aa1dcb5646fdf34a15763facf4bf5e482a2814ca upstream.

The max waiting period (of 1 ms) while reading the data from FW shared
buffer is too small for certain types of data (e.g., stats). There's a
chance that FW could be updating buffer at the same time and driver
would be unsuccessful in reading data. Firmware manual recommends to
have 1 sec timeout to fix this issue.

Fixes: 5cfd54d7dc186 ("net: atlantic: minimal A2 fw_ops")
Signed-off-by: Dmitry Bogdanov <dbezrukov@marvell.com>
Signed-off-by: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Dmitry Bogdanov 2021-11-29 05:28:23 -08:00 committed by Greg Kroah-Hartman
parent e216e02bef
commit da0027b417
1 changed files with 5 additions and 2 deletions
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7
drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2_utils_fw.c
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@ -84,7 +84,7 @@ static int hw_atl2_shared_buffer_read_block(struct aq_hw_s *self,
if (cnt > AQ_A2_FW_READ_TRY_MAX)
return -ETIME;
if (tid1.transaction_cnt_a != tid1.transaction_cnt_b)
udelay(1);
mdelay(1);
} while (tid1.transaction_cnt_a != tid1.transaction_cnt_b);
hw_atl2_mif_shared_buf_read(self, offset, (u32 *)data, dwords);
@ -339,8 +339,11 @@ static int aq_a2_fw_update_stats(struct aq_hw_s *self)
{
struct hw_atl2_priv *priv = (struct hw_atl2_priv *)self->priv;
struct statistics_s stats;
int err;
hw_atl2_shared_buffer_read_safe(self, stats, &stats);
err = hw_atl2_shared_buffer_read_safe(self, stats, &stats);
if (err)
return err;
#define AQ_SDELTA(_N_, _F_) (self->curr_stats._N_ += \
stats.msm._F_ - priv->last_stats.msm._F_)