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* drivers/net: remove all references to obsolete Ethernet-HOWTOPaul Gortmaker2015-06-231-3/+1
| | | | | | | | | | | | | | | | | | This howto made sense in the 1990s when users had to manually configure ISA cards with jumpers or vendor utilities, but with the implementation of PCI it became increasingly less and less relevant, to the point where it has been well over a decade since I last updated it. And there is no value in anyone else taking over updating it either. However the references to it continue to spread as boiler plate text from one Kconfig file into the next. We are not doing end users any favours by pointing them at this old document, so lets kill it with fire, once and for all, to hopefully stop any further spread. No code is changed in this commit, just Kconfig help text. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* cxgb4: Add PCI device ID for custom T522 & T520 adapterHariprasad Shenai2015-06-211-0/+2
| | | | | Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* cxgb3: avoid needless buffer copy for firmwareKees Cook2015-06-211-6/+6
| | | | | | | | | There's no reason to perform a buffer copy for the firmware name. This also avoids a (currently impossible with current callers) NULL dereference if there was no matching firmware. Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* cxgb4: Add debugfs entry to dump channel rateHariprasad Shenai2015-06-104-0/+117
| | | | | Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* cxgb4: Add debugfs entry to dump CIM PIF logic analyzer contentsHariprasad Shenai2015-06-105-0/+95
| | | | | Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* cxgb4: Add a debugfs entry to dump CIM MA logic analyzer logsHariprasad Shenai2015-06-105-0/+84
| | | | | Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* cxgb4: Fix static checker warningHariprasad Shenai2015-06-051-1/+1
| | | | | | | | | | | | | | | The patch e85c9a7abfa4: ("cxgb4/cxgb4vf: Add code to calculate T5 BAR2 Offsets for SGE Queue Registers") from Dec 3, 2014, leads to the following static checker warning: drivers/net/ethernet/chelsio/cxgb4/t4_hw.c:5358 t4_bar2_sge_qregs() warn: should '(qid >> qpp_shift) << page_shift' be a 64 bit type? This patch fixes it Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* cxgb4: Use FW LDST cmd to access TP_PIO_{ADDR, DATA} register firstHariprasad Shenai2015-06-052-21/+83
| | | | | | | | | | | The TP_PIO_{ADDR,DATA} registers are are in conflict with the firmware's use of these registers. Added a routine to access it through FW LDST cmd. Access all TP_PIO_{ADDR,DATA} register access through new routine if FW is alive. If firmware is dead, than fall back to indirect access. Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* cxgb4: program pci completion timeoutHariprasad Shenai2015-06-051-0/+19
| | | | | | | Set pci completion timeout to 0xd. Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* cxgb4: Set mac addr from vpd, when we can't contact firmwareHariprasad Shenai2015-06-053-19/+81
| | | | | | | | Grab the Adapter MAC Address out of the VPD and use it for the "debug" network interface when either we can't contact the firmware Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* cxgb4: Rename t4_link_start() to t4_link_l1cfgHariprasad Shenai2015-06-054-6/+6
| | | | | | | | | | | t4_link_start() was completely misnamed. It does _not_ start up the link. It merely does the L1 Configuration for the link. The Link Up process is started automatically by the firmware when the number of enabled Virtual Interfaces on a port goes from 0 to 1. So renaming this routine to t4_link_l1cfg() for better documentation. Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* cxgb4: Add sge ec context flush serviceHariprasad Shenai2015-06-054-5/+33
| | | | | | | | Add function to flush the sge ec context cache, and utilize this new function in the driver Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* cxgb4: Free Virtual Interfaces in remove routineHariprasad Shenai2015-06-053-0/+35
| | | | | | | | Free VI interfaces in remove routine. If we don't do this then the firmware will never drop the physical link to the peer. Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* cxgb4: Remove WOL get/set ethtool supportHariprasad Shenai2015-06-034-137/+0
| | | | | | | | Remove ethtool get/set support for wake on lan, adapter doesn't support it. Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* cxgb4: Add support to dump loopback port statsHariprasad Shenai2015-06-034-1/+92
| | | | | | | Add support in ethtool to dump loopback port statistics Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* cxgb4: Add support in ethtool to dump channel statsHariprasad Shenai2015-06-034-1/+136
| | | | | | | Add support in ethtool to dump adapter channel stats Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* cxgb4: Add ethtool support to get adapter statsHariprasad Shenai2015-06-035-46/+280
| | | | | | | Add ethtool support to get adapter specific hardware statistics Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* cxgb4vf: Adds SRIOV driver changes for T6 adapterHariprasad Shenai2015-06-013-23/+54
| | | | | | | Adds vnic driver register related changes for T6 adapter Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* cxgb4: Adds support for T6 adapterHariprasad Shenai2015-06-0110-149/+524
| | | | | | | | | Adds NIC driver related changes for T6 adapter. Register related changes, MC related changes, VF related changes, doorbell related changes, debugfs changes, etc Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* cxgb4: Add is_t6 macro and T6 register rangesHariprasad Shenai2015-06-012-0/+354
| | | | | | | Adds new macro is_t6 and adds the register address range for T6 adapter Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* cxgb4: remove unused fn to enable/disable db coalescingHariprasad Shenai2015-06-012-21/+0
| | | | | | | | Remove unused function cxgb4_enable_db_coalescing() and cxgb4_disable_db_coalescing() Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* cxgb4/cxgb4vf: function and argument name cleanupHariprasad Shenai2015-05-279-89/+89
| | | | | | | | | | | | | | | | | | This patch changes variable name 'fn' to 'pf' of structure adapter. A 'fn' usually stands for PCI function which could be a PF or a VF. However, the use of this particular variable is explicitly limited to PF only. So, be specific about it in the variable name. Also corrects arguments passed for fn t4_ofld_eq_free, t4_ctrl_eq_free, t4_eth_eq_free, t4_iq_free, t4_alloc_vi, t4_fw_hello, t4_wr_mbox and t4_cfg_pfvf function. Also renames cxgb4_t4_bar2_sge_qregs to t4_bar2_sge_qregs and renames the latter function name in cxgb4vf driver to t4vf_bar2_sge_qregs to avoid conflicts. Also fixes alignment for these function. Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* cxgb4: Add debugfs facility to inject FL starvationHariprasad Shenai2015-05-274-1/+81
| | | | | | | | Add debugfs entry to inject Freelist starvation, used only for debugging purpose. Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* cxgb4: Add PHY firmware support for T420-BT cardsHariprasad Shenai2015-05-254-42/+375
| | | | | | | | | | Add support for flashing 10GBaseT adapter with BCM 84834 PHY and Aquantia AQ1202 PHY. Updating of the PHY firmware must happen before the INITIALIZE_CMD. Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* cxgb4: Update T4/T5 adapter register rangesHariprasad Shenai2015-05-211-31/+44
| | | | | | | Remove some T4/T5 registers that were included incorrectly. Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* cxgb4: Optimize and cleanup setup memory window codeHariprasad Shenai2015-05-213-77/+102
| | | | | Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* cxgb4: replace ntoh{s, l} and hton{s, l} calls with the generic byteorderHariprasad Shenai2015-05-191-182/+217
| | | | | | | | replace ntoh{s,l} and hton{s,l} calls with the generic byteorder in cxgb4/t4_hw.c file Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* cxgb4: Remove dead function t4_read_edc and t4_read_mcHariprasad Shenai2015-05-192-114/+0
| | | | | Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* cxgb4/cxgb4vf: Cleanup macros, add comments and add new MACROSHariprasad Shenai2015-05-129-147/+235
| | | | | | | | | Cleanup few MACROS left out in t4_hw.h to be consistent with the existing ones. Also replace few hardcoded values with MACROS. Also update comments for some code Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* cxgb4: Initialize RSS mode for all PortsHariprasad Shenai2015-05-093-7/+80
| | | | | | | | | | Implements t4_init_rss_mode() to initialize the rss_mode for all the ports. If Tunnel All Lookup isn't specified in the global RSS Configuration, then we need to specify a default Ingress Queue for any ingress packets which aren't hashed. We'll use our first ingress queue. Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* cxgb4: Discard the packet if the length is greater than mtuHariprasad Shenai2015-05-052-2/+16
| | | | | | | | | pktgen sends raw udp packets and bypasses most of the linux networking stack. User can specify different packet sizes. Hence we need to discard the packet if the length is greater than mtu Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* cxgb4: Move SGE Ingress DMA state monitor code to a new routineHariprasad Shenai2015-05-053-79/+156
| | | | | Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* cxgb4: Add device node to ULD infoHariprasad Shenai2015-05-053-1/+3
| | | | | | | | Adds device node to ULD info. Use the node info to alloc_ring() for ctrl TX queues Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* cxgb4: Pass in a Congestion Channel Map to t4_sge_alloc_rxq()Hariprasad Shenai2015-05-053-0/+45
| | | | | | | | | | | | Passes a Congestion Channel Map to t4_sge_alloc_rxq() for the Ethernet RX Queues based on the MPS Buffer Group Map of the TX Channel rather than just the TX Channel Map. Also, in t4_sge_alloc_rxq() for T5, setting up the Congestion Manager values of the new RX Ethernet Queue is done by firmware now. Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* cxgb4: Enable congestion notification from SGE for IQs and FLs.Hariprasad Shenai2015-05-055-13/+28
| | | | | | | | Also changed the name of t4_hw.c:get_mps_bg_map() to t4_get_mps_bg_map() and make it an exported routine with a definition in cxgb4.h. Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* cxgb4: Make sure that Freelist size is larger than Egress Congestion ThresholdHariprasad Shenai2015-05-052-1/+14
| | | | | | | | | We need to make sure that the Free List Size, in pointers, is at least 2 Egress Queue Units (8 pointers/each) larger than the SGE's Egress Congestion Threshold (in pointers). Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* cxgb4: Fix MC1 memory offset calculationHariprasad Shenai2015-04-291-1/+1
| | | | | | | | | | | | Commit 6559a7e8296002b4 ("cxgb4: Cleanup macros so they follow the same style and look consistent") introduced a regression where reading MC1 memory in adapters where MC0 isn't present or MC0 size is not equal to MC1 size caused the adapter to crash due to incorrect computation of memoffset. Fix is to read the size of MC0 instead of MC1 for offset calculation Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'for-linus' of ↵Linus Torvalds2015-04-262-16/+7
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull fourth vfs update from Al Viro: "d_inode() annotations from David Howells (sat in for-next since before the beginning of merge window) + four assorted fixes" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: RCU pathwalk breakage when running into a symlink overmounting something fix I_DIO_WAKEUP definition direct-io: only inc/dec inode->i_dio_count for file systems fs/9p: fix readdir() VFS: assorted d_backing_inode() annotations VFS: fs/inode.c helpers: d_inode() annotations VFS: fs/cachefiles: d_backing_inode() annotations VFS: fs library helpers: d_inode() annotations VFS: assorted weird filesystems: d_inode() annotations VFS: normal filesystems (and lustre): d_inode() annotations VFS: security/: d_inode() annotations VFS: security/: d_backing_inode() annotations VFS: net/: d_inode() annotations VFS: net/unix: d_backing_inode() annotations VFS: kernel/: d_inode() annotations VFS: audit: d_backing_inode() annotations VFS: Fix up some ->d_inode accesses in the chelsio driver VFS: Cachefiles should perform fs modifications on the top layer only VFS: AF_UNIX sockets should call mknod on the top layer only
| * VFS: Fix up some ->d_inode accesses in the chelsio driverDavid Howells2015-04-152-16/+7
| | | | | | | | | | | | | | | | | | | | | | | | Fix up some ->d_inode accesses in the chelsio driver. (1) FILE_DATA() should just be replaced with file_inode(). (2) set_debugfs_file_size() should be removed and debugfs_create_file_size() should be used to create the file. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | cxgb4: drop __GFP_NOFAIL allocationMichal Hocko2015-04-161-3/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | set_filter_wr is requesting __GFP_NOFAIL allocation although it can return ENOMEM without any problems obviously (t4_l2t_set_switching does that already). So the non-failing requirement is too strong without any obvious reason. Drop __GFP_NOFAIL and reorganize the code to have the failure paths easier. The same applies to _c4iw_write_mem_dma_aligned which uses __GFP_NOFAIL and then checks the return value and returns -ENOMEM on failure. This doesn't make any sense what so ever. Either the allocation cannot fail or it can. del_filter_wr seems to be safe as well because the filter entry is not marked as pending and the return value is propagated up the stack up to c4iw_destroy_listen. Signed-off-by: Michal Hocko <mhocko@suse.cz> Cc: David Rientjes <rientjes@google.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Dave Chinner <david@fromorbit.com> Cc: "Theodore Ts'o" <tytso@mit.edu> Cc: Mel Gorman <mgorman@suse.de> Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Cc: "David S. Miller" <davem@davemloft.net> Cc: Hariprasad S <hariprasad@chelsio.com> Cc: Jan Kara <jack@suse.cz> Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | cxgb4: Don't call t4_slow_intr_handler when we're not the Master PFHariprasad Shenai2015-04-142-3/+6
| | | | | | | | | | Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | cxgb4: Add comment for calculate tx flits and sge length codeHariprasad Shenai2015-04-141-1/+35
| | | | | | | | | | | | | | | | Add comment for tx filt and sge length calucaltion code, also remove a hardcoded value Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | cxgb4: Use device node in page allocationHariprasad Shenai2015-04-141-2/+4
| | | | | | | | | | Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | cxgb4: Freelist starving threshold varies from adapter to adapterHariprasad Shenai2015-04-141-10/+16
| | | | | | | | | | | | | | | | fl_starv_thres could be different from adapter to adapter, don't use hardcoded values Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | cxgb4: Increased the value of MAX_IMM_TX_PKT_LEN from 128 to 256 bytesHariprasad Shenai2015-04-141-1/+1
| | | | | | | | | | | | | | | | This allows a significant latency drop for packets of sizes between 128 and 192 bytes Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | cxgb3/4/4vf: Update drivers to use dma_rmb/wmb where appropriateAlexander Duyck2015-04-093-14/+14
| | | | | | | | | | | | | | | | | | | | | | Update the Chelsio Ethernet drivers to use the dma_rmb/wmb calls instead of the full barriers in order to improve performance. Cc: Santosh Raspatur <santosh@chelsio.com> Cc: Hariprasad S <hariprasad@chelsio.com> Cc: Casey Leedom <leedom@chelsio.com> Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | cxgb4: Move ethtool related code to a separate fileHariprasad Shenai2015-04-075-1608/+1702
|/ | | | | Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2015-04-0210-62/+225
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: drivers/net/usb/asix_common.c drivers/net/usb/sr9800.c drivers/net/usb/usbnet.c include/linux/usb/usbnet.h net/ipv4/tcp_ipv4.c net/ipv6/tcp_ipv6.c The TCP conflicts were overlapping changes. In 'net' we added a READ_ONCE() to the socket cached RX route read, whilst in 'net-next' Eric Dumazet touched the surrounding code dealing with how mini sockets are handled. With USB, it's a case of the same bug fix first going into net-next and then I cherry picked it back into net. Signed-off-by: David S. Miller <davem@davemloft.net>
| * cxgb4: Fix to dump devlog, even if FW is crashedHariprasad Shenai2015-04-014-26/+65
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Add new Common Code routines to retrieve Firmware Device Log parameters from PCIE_FW_PF[7]. The firmware initializes its Device Log very early on and stores the parameters for its location/size in that register. Using the parameters from the register allows us to access the Firmware Device Log even when the firmware crashes very early on or we're not attached to the firmware Based on original work by Casey Leedom <leedom@chelsio.com> Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * cxgb4: Firmware macro changes for fw verison 1.13.32.0Hariprasad Shenai2015-04-012-6/+41
| | | | | | | | | | | | | | | | Adds new macro and few macro changes for fw version 1.13.32.0 also changes version string in driver to match 1.13.32.0 Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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