diff options
| author | Sudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com> | 2016-05-05 07:35:16 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-05-06 22:50:33 +0300 |
| commit | 8e0ddc040a87a3b700bdf67394d24fe30a0f1eb9 (patch) | |
| tree | 5b25e88b1755144f7de7d11b2ef7ed7d1526d024 /drivers/net | |
| parent | 1d2f7b2d956e242179aaf4a08f3545f99c81f9a3 (diff) | |
| download | linux-8e0ddc040a87a3b700bdf67394d24fe30a0f1eb9.tar.xz | |
qede: prevent chip hang when increasing channels
qede requires qed to provide enough resources to accommodate 16 combined
channels, but that upper-bound isn't actually being enforced by it.
Instead, qed inform back to qede how many channels can be opened based on
available resources - but that calculation doesn't really take into account
the resources requested by qede; Instead it considers other FW/HW available
resources.
As a result, if a user would increase the number of channels to more than
16 [e.g., using ethtool] the chip would hang.
This change increments the resources requested by qede to 64 combined
channels instead of 16; This value is an upper bound on the possible
available channels [due to other FW/HW resources].
Signed-off-by: Sudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/qlogic/qede/qede_main.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/net/ethernet/qlogic/qede/qede_main.c b/drivers/net/ethernet/qlogic/qede/qede_main.c index 7869465435fa..8d5248c4087f 100644 --- a/drivers/net/ethernet/qlogic/qede/qede_main.c +++ b/drivers/net/ethernet/qlogic/qede/qede_main.c @@ -1938,8 +1938,6 @@ static struct qede_dev *qede_alloc_etherdev(struct qed_dev *cdev, edev->q_num_rx_buffers = NUM_RX_BDS_DEF; edev->q_num_tx_buffers = NUM_TX_BDS_DEF; - DP_INFO(edev, "Allocated netdev with 64 tx queues and 64 rx queues\n"); - SET_NETDEV_DEV(ndev, &pdev->dev); memset(&edev->stats, 0, sizeof(edev->stats)); @@ -2090,9 +2088,9 @@ static void qede_update_pf_params(struct qed_dev *cdev) { struct qed_pf_params pf_params; - /* 16 rx + 16 tx */ + /* 64 rx + 64 tx */ memset(&pf_params, 0, sizeof(struct qed_pf_params)); - pf_params.eth_pf_params.num_cons = 32; + pf_params.eth_pf_params.num_cons = 128; qed_ops->common->update_pf_params(cdev, &pf_params); } |