diff options
| author | Yuval Mintz <Yuval.Mintz@qlogic.com> | 2016-08-22 13:25:11 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-08-22 18:24:52 -0700 |
| commit | d8c2c7e3404e5bcaeae4af78d6935e5b8fcc97ee (patch) | |
| tree | e9beb5dc5d4bf584102e0e96830590ee5e0535cd /drivers/net/ethernet/qlogic/qede/qede_main.c | |
| parent | 11a85d759ea5064c986c47112607681c09cdcdd9 (diff) | |
qed*: Add support for VFs over legacy PFs
Modern VFs can't run on old non-compatible as the fastpath HSI is
slightly changed - but as the HSI is actually very close [basically,
a single bit whose meaning flipped] this can be supported with small
modifications.
The major differences would be in:
- Recognizing that VF is running on top of a legacy PF.
- Returning some slowpath configurations that are no longer needed
on top of modern PFs, but would be required when working over
the legacy ones.
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/qlogic/qede/qede_main.c')
| -rw-r--r-- | drivers/net/ethernet/qlogic/qede/qede_main.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/net/ethernet/qlogic/qede/qede_main.c b/drivers/net/ethernet/qlogic/qede/qede_main.c index a05459f96962..ac126e6067ae 100644 --- a/drivers/net/ethernet/qlogic/qede/qede_main.c +++ b/drivers/net/ethernet/qlogic/qede/qede_main.c @@ -598,6 +598,14 @@ static netdev_tx_t qede_start_xmit(struct sk_buff *skb, 1 << ETH_TX_DATA_1ST_BD_TUNN_FLAG_SHIFT; } + /* Legacy FW had flipped behavior in regard to this bit - + * I.e., needed to set to prevent FW from touching encapsulated + * packets when it didn't need to. + */ + if (unlikely(txq->is_legacy)) + first_bd->data.bitfields ^= + 1 << ETH_TX_DATA_1ST_BD_TUNN_FLAG_SHIFT; + /* If the packet is IPv6 with extension header, indicate that * to FW and pass few params, since the device cracker doesn't * support parsing IPv6 with extension header/s. @@ -2991,6 +2999,8 @@ static void qede_init_fp(struct qede_dev *edev) for (tc = 0; tc < edev->num_tc; tc++) { txq_index = tc * QEDE_RSS_CNT(edev) + rss_id; fp->txqs[tc].index = txq_index; + if (edev->dev_info.is_legacy) + fp->txqs[tc].is_legacy = true; } snprintf(fp->name, sizeof(fp->name), "%s-fp-%d", |