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>

1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/net/ethernet/brocade/bna/bfa_ioc.h b/drivers/net/ethernet/brocade/bna/bfa_ioc.h
index fc108c7a735e..3b4460fdc148 100644
--- a/drivers/net/ethernet/brocade/bna/bfa_ioc.h
+++ b/drivers/net/ethernet/brocade/bna/bfa_ioc.h
@@ -27,6 +27,8 @@
 #define BFA_IOC_HWSEM_TOV       500     /* msecs */
 #define BFA_IOC_HB_TOV          500     /* msecs */
 #define BFA_IOC_POLL_TOV        200     /* msecs */
+#define BNA_DBG_FWTRC_LEN      (BFI_IOC_TRC_ENTS * BFI_IOC_TRC_ENT_SZ + \
+                                BFI_IOC_TRC_HDR_SZ)
 
 /**
  * PCI device information required by IOC
@@ -306,6 +308,7 @@ void bfa_nw_ioc_disable(struct bfa_ioc *ioc);
 
 void bfa_nw_ioc_error_isr(struct bfa_ioc *ioc);
 bool bfa_nw_ioc_is_disabled(struct bfa_ioc *ioc);
+bool bfa_nw_ioc_is_operational(struct bfa_ioc *ioc);
 void bfa_nw_ioc_get_attr(struct bfa_ioc *ioc, struct bfa_ioc_attr *ioc_attr);
 void bfa_nw_ioc_notify_register(struct bfa_ioc *ioc,
         struct bfa_ioc_notify *notify);
@@ -317,6 +320,9 @@ void bfa_nw_ioc_fwver_get(struct bfa_ioc *ioc,
 bool bfa_nw_ioc_fwver_cmp(struct bfa_ioc *ioc,
                         struct bfi_ioc_image_hdr *fwhdr);
 mac_t bfa_nw_ioc_get_mac(struct bfa_ioc *ioc);
+void bfa_nw_ioc_debug_memclaim(struct bfa_ioc *ioc, void *dbg_fwsave);
+int bfa_nw_ioc_debug_fwtrc(struct bfa_ioc *ioc, void *trcdata, int *trclen);
+int bfa_nw_ioc_debug_fwsave(struct bfa_ioc *ioc, void *trcdata, int *trclen);
 
 /*
  * Timeout APIs