diff options
| author | Raghu Vatsavayi <rvatsavayi@caviumnetworks.com> | 2016-06-21 22:53:08 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-06-25 12:08:28 -0400 |
| commit | 60441888ec9cf5cdf58e43ecf93f403210cf3383 (patch) | |
| tree | ff357dda924a999af541dbf731ab1de1f17bad52 /drivers/net/ethernet/cavium/liquidio/octeon_nic.c | |
| parent | d3d7e6c65f75de18ced10a98595a847f9f95f0ce (diff) | |
liquidio: New unload state
This patch adds new state so that the ctrl packets are not sent
to firmware during unload time and only rx packets are allowed.
Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com>
Signed-off-by: Satanand Burla <satananda.burla@caviumnetworks.com>
Signed-off-by: Felix Manlunas <felix.manlunas@caviumnetworks.com>
Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com>
Signed-off-by: Raghu Vatsavayi <rvatsavayi@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/cavium/liquidio/octeon_nic.c')
| -rw-r--r-- | drivers/net/ethernet/cavium/liquidio/octeon_nic.c | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/drivers/net/ethernet/cavium/liquidio/octeon_nic.c b/drivers/net/ethernet/cavium/liquidio/octeon_nic.c index 7843b8a05dcf..36f1970a860e 100644 --- a/drivers/net/ethernet/cavium/liquidio/octeon_nic.c +++ b/drivers/net/ethernet/cavium/liquidio/octeon_nic.c @@ -171,20 +171,36 @@ octnet_send_nic_ctrl_pkt(struct octeon_device *oct, int retval; struct octeon_soft_command *sc = NULL; + spin_lock_bh(&oct->cmd_resp_wqlock); + /* Allow only rx ctrl command to stop traffic on the chip + * during offline operations + */ + if ((oct->cmd_resp_state == OCT_DRV_OFFLINE) && + (nctrl->ncmd.s.cmd != OCTNET_CMD_RX_CTL)) { + spin_unlock_bh(&oct->cmd_resp_wqlock); + dev_err(&oct->pci_dev->dev, + "%s cmd:%d not processed since driver offline\n", + __func__, nctrl->ncmd.s.cmd); + return -1; + } + sc = octnic_alloc_ctrl_pkt_sc(oct, nctrl); if (!sc) { dev_err(&oct->pci_dev->dev, "%s soft command alloc failed\n", __func__); + spin_unlock_bh(&oct->cmd_resp_wqlock); return -1; } retval = octeon_send_soft_command(oct, sc); if (retval == IQ_SEND_FAILED) { octeon_free_soft_command(oct, sc); - dev_err(&oct->pci_dev->dev, "%s soft command send failed status: %x\n", - __func__, retval); + dev_err(&oct->pci_dev->dev, "%s soft command:%d send failed status: %x\n", + __func__, nctrl->ncmd.s.cmd, retval); + spin_unlock_bh(&oct->cmd_resp_wqlock); return -1; } + spin_unlock_bh(&oct->cmd_resp_wqlock); return retval; } |