diff options
| author | Krishna Gudipati <kgudipat@brocade.com> | 2011-12-22 13:30:19 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-12-23 16:50:58 -0500 |
| commit | 7afc5dbde09104b023ce04465ba71aaba0fc4346 (patch) | |
| tree | 03109d7dfed9afb5c0e4d1f1c86d307f577f0b6d /drivers/net/ethernet/brocade/bna/bnad.c | |
| parent | 72a9730b3f556e18912f3e1b494a7aee7ae3dd91 (diff) | |
bna: Add debugfs interface.
Change details:
- Add debugfs support to obtain firmware trace, saved firmware trace on
an IOC crash, driver info and read/write to registers.
- debugfs hierarchy:
bna/pci_dev:<pci_name>
where the pci_name corresponds to the one under /sys/bus/pci/drivers/bna
- Following are the new debugfs entries added:
fwtrc: collect current firmware trace.
fwsave: collect last saved fw trace as a result of firmware crash.
regwr: write one word to chip register
regrd: read one or more words from chip register.
drvinfo: collect the driver information.
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/brocade/bna/bnad.c')
| -rw-r--r-- | drivers/net/ethernet/brocade/bna/bnad.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/net/ethernet/brocade/bna/bnad.c b/drivers/net/ethernet/brocade/bna/bnad.c index 741f2e40500..2eddbaa5db4 100644 --- a/drivers/net/ethernet/brocade/bna/bnad.c +++ b/drivers/net/ethernet/brocade/bna/bnad.c @@ -44,6 +44,11 @@ static uint bnad_ioc_auto_recover = 1; module_param(bnad_ioc_auto_recover, uint, 0444); MODULE_PARM_DESC(bnad_ioc_auto_recover, "Enable / Disable auto recovery"); +static uint bna_debugfs_enable = 1; +module_param(bna_debugfs_enable, uint, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(bna_debugfs_enable, "Enables debugfs feature, default=1," + " Range[false:0|true:1]"); + /* * Global variables */ @@ -3312,6 +3317,10 @@ bnad_pci_probe(struct pci_dev *pdev, /* Set link to down state */ netif_carrier_off(netdev); + /* Setup the debugfs node for this bfad */ + if (bna_debugfs_enable) + bnad_debugfs_init(bnad); + /* Get resource requirement form bna */ spin_lock_irqsave(&bnad->bna_lock, flags); bna_res_req(&bnad->res_info[0]); @@ -3433,6 +3442,9 @@ disable_ioceth: res_free: bnad_res_free(bnad, &bnad->res_info[0], BNA_RES_T_MAX); drv_uninit: + /* Remove the debugfs node for this bnad */ + kfree(bnad->regdata); + bnad_debugfs_uninit(bnad); bnad_uninit(bnad); pci_uninit: bnad_pci_uninit(pdev); @@ -3479,6 +3491,9 @@ bnad_pci_remove(struct pci_dev *pdev) mutex_unlock(&bnad->conf_mutex); bnad_remove_from_list(bnad); bnad_lock_uninit(bnad); + /* Remove the debugfs node for this bnad */ + kfree(bnad->regdata); + bnad_debugfs_uninit(bnad); bnad_uninit(bnad); free_netdev(netdev); } |