Change details:
 - Add tx_skb counters and NAPI debug counters to ethtool stats.
 - Add rlb stats strings to bnad_net_stats_strings{} array. rlb_stats field
   was added to struct bfi_enet_stats {} but the corresponding name structure
   array for ethtool was not initialized with right strings, even though the
   actual name structure array got expanded. This caused a NULL pointer
   violation and a crash when doing ehtool -S <if_name>.
 - Modify dim timer stop logic to make it dependent on cfg and run flags
 - While setting the ring parameter restore the rx, vlan configuration and
   set rx mode
 - Indentation fix
Signed-off-by: NGurunatha Karaje <gkaraje@brocade.com>
Signed-off-by: NRasesh Mody <rmody@brocade.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Change details:
 - Print log messages when running with reduced number of MSI-X vectors
   and when defaulting to INTx mode.
 - Remove BUG_ONs and header file inclusion that are not needed
 - Comments addition/cleanup
 - Unused code cleanup
 - Add New Line to Print msg in bfa_sm_fault
 - Formatting fix
Signed-off-by: NGurunatha Karaje <gkaraje@brocade.com>
Signed-off-by: NRasesh Mody <rmody@brocade.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Change details:
 - Add bnad_pci_unmap_skb() API to unmap skb from transmit path and update the
   unmap index. Add more checks for illegal skbs in transmit path. Add tx_skb
   counters for dropped skbs.
 - The unmap_cons index used in bnad_free_txbufs() is incorrectly declared as
   u16. It quickly wraps around and accesses null sk_buff ptr. So using u32 to
   handle unmap_array.
 - Disable and enable interrupts from the same polling context to prevent
   reordering in Rx path.
 - Add Rx NAPI debug counters.
 - Make NAPI budget check more generic.
 - Modify dim timer stop logic to make it dependent on cfg and run flags
 - Handle reduced MSI-X vectors case in bnad_enable_msix.
 - Check for single frame TSO skbs and send them out as non-TSO.
 - Put memory barrier after bna_txq_prod_indx_doorbell().
Signed-off-by: NGurunatha Karaje <gkaraje@brocade.com>
Signed-off-by: NRasesh Mody <rmody@brocade.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Change details:
 - Remove unnecessary ccb check from bnad_poll_cq
 - Add bnad pointer to rx_ctrl structure, so that bnad can be accessed directly
   from rx_ctrl in the NAPI poll routines, even if ccb is NULL
 - Validate ccb before referencing to it in bnad_msix_rx and bnad_napi_poll_rx
 - Fix the order of NAPI init / uninit in Tx / Rx setup / teardown path:
   a. Kill bnad tx free tasklet ahead of call to bna_tx_destroy()
   b. Call NAPI disable only after call to Rx free_irq(). This makes sure Rx
      interrupt does not schedule a poll when NAPI is already disabled
 - NAPI poll runs before the h/w has completed configuration. This causes a
   crash. Delay enabling NAPI till after bna_rx_enable(). Split NAPI
   initialization into 2 steps, bnad_napi_init() & bnad_napi_enable().
Signed-off-by: NGurunatha Karaje <gkaraje@brocade.com>
Signed-off-by: NRasesh Mody <rmody@brocade.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Naming changes: rename devid, BNAD_MAX_TXS, BNAD_MAX_RXS,
BNAD_MAX_RXPS_PER_RX to device, BNAD_MAX_TX, BNAD_MAX_RX,
BNAD_MAX_RXP_PER_RX respectively and change all the references.

Macro Fix: Add ioc_isr_mod_set check to bfa_nw_ioc_mbox_regisr macro
Signed-off-by: NGurunatha Karaje <gkaraje@brocade.com>
Signed-off-by: NRasesh Mody <rmody@brocade.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NRasesh Mody <rmody@brocade.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Change details:
This patch contains additional structure and function definition changes
that are required to enable the new msgq/enet/txrx redesign introduced
by the previous 4 patches.
 - structure and function definition changes to header files as a result
   of Ethport, Enet, IOCEth, Tx, Rx redesign.
 - ethtool changes to use new enet function and definitions
 - Set number of Tx and Rx queues bassed on underlying hardware. Define
   separate macros for maximum and supported numbers of Tx and Rx queues
   based on underlying hardware. Take VLAN header into account for MTU
   calculation. Default to INTx mode when pci_enable_msix() fails. Set a
   bit in Rx poll routine, check and wait for that bit to be cleared in
   the cleanup routine before proceeding.
 - The TX and Rx coalesce settings are programmed in steps of 5 us. The value
   that are not divisible by 5 are rounded to the next lower number. This was
   causing the value os 1 to 4 to be rounded to 0, which is an invalid setting.
   When creating Rx and Tx object, we are currently assigning the default
   values of Rx and Tx coalescing_timeo. If these values are changed in the
   driver to a different value, the change is lost during such operations as
   MTU change. In order to avoid that, pass the configured value of
   coalescing_timeo before Rx and Tx object creation. Fix
   bnad_tx_coalescing_timeo_set() so it applies to all the Tx objects.
 - Reorg uninitialization path in case of pci_probe failure.
 - Hardware clock setup changes to pass asic generation, port modes and
   asic mode as part firmware boot parameters to firmware.
 - FW mailbox interface changes to defined asic specific mailbox interfaces.
   h/w mailbox interfaces take 8-bit FIDs and 2-bit port id for owner. Cleaned
   up mailbox definitions and usage for new and old HW. Eliminated usage of
   ASIC ID. MSI-X vector assignment and programming done by firmware. Fixed
   host offsets for CPE/RME queue registers.
 - Implement polling mechanism for FW ready to have poll mechanism replaces
   the current interrupt based FW READY method. The timer based poll routine
   in IOC will query the ioc_fwstate register to see if there is a state
   change in FW, and sends the READY event. Removed infrastructure needed to
   support mbox READY event from fw as well as IOC code.
 - Move FW init to HW init. Handle the case where PCI mapping goes away when
   IOCPF state machine is waiting for semaphore.
 - Add IOC mbox call back to client indicating that the command is sent.
Signed-off-by: NRasesh Mody <rmody@brocade.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Moves the Brocade driver into drivers/net/ethernet/brocade/ and make
the necessary Kconfig and Makefile changes.

CC: Rasesh Mody <rmody@brocade.com>
CC: Debashis Dutt <ddutt@brocade.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Change details:
 - Always set mbox irq index to zero and make corresponding changes in mbox
   irq alloc/sync function and txrx irq index calculation. Add definition of
   BNAD_INTX_TX_IB_BITMASK & BNAD_INTX_RX_IB_BITMASK and update
   bnad_txrx_irq_alloc accordingly.
Signed-off-by: NRasesh Mody <rmody@brocade.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Change details:
 - Driver cleanup as per new checkpatch v0.31
Signed-off-by: NRasesh Mody <rmody@brocade.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

- unify vlan and nonvlan rx path
- kill bnad->vlan_grp and bnad_vlan_rx_register
Signed-off-by: NJiri Pirko <jpirko@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Note: looks like bnad->conf_mutex is duplicating rtnl_lock.
Signed-off-by: NMichał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Use DMA API as PCI equivalents will be deprecated.
Signed-off-by: NIvan Vecera <ivecera@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NDebashis Dutt <ddutt@brocade.com>
Signed-off-by: NRasesh Mody <rmody@brocade.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Change Details:
	- Call netif_wake_queue() if we have freed up sufficient elements
	at the end of completion processing
	- Add netif_queue_stopped counter back to bnad_drv_stats {}
	- Get netif_queue_stopped value from stack
	- Remove BUG_ON() on value returned by pci_unmap_addr()
Signed-off-by: NDebashis Dutt <ddutt@brocade.com>
Signed-off-by: NRasesh Mody <rmody@brocade.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Change Details:
	- Check HW ready condition before accessing h/w register in data-path
	- Postpone clean-up of data buffers to the data-path restart path and
	wait in the cleanup routines for in-flight DMA to complete
	- Separate out Tx completion processing from Rx poll routine
Signed-off-by: NDebashis Dutt <ddutt@brocade.com>
Signed-off-by: NRasesh Mody <rmody@brocade.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

As suggested by Stephen Hemminger:
1) Made functions and data structures static wherever possible.
2) Removed unused code.
Signed-off-by: NDebashis Dutt <ddutt@brocade.com>
Signed-off-by: NRasesh Mody <rmody@brocade.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

get_stats() method incorrectly clears a global array before folding
various stats. This can break SNMP applications.

Switch to 64 bit flavor to work on a user supplied buffer, and provide
64bit counters even on 32bit arches.

Fix a bug in bnad_netdev_hwstats_fill(), for rx_fifo_errors, missing a
folding (only the last counter was taken into account)
Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com>
Acked-by: NRasesh Mody <rmody@brocade.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This is patch 1/6 which contains linux driver source for
Brocade's BR1010/BR1020 10Gb CEE capable ethernet adapter.
Signed-off-by: NDebashis Dutt <ddutt@brocade.com>
Signed-off-by: NRasesh Mody <rmody@brocade.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>