linux/drivers/ntb, branch v5.5

Merge tag 'ntb-5.5' of git://github.com/jonmason/ntb

2019-12-08T02:38:17Z

Pull NTB update from Jon Mason: "Just a simple patch to add a new Hygon Device ID to the AMD NTB device driver" * tag 'ntb-5.5' of git://github.com/jonmason/ntb: NTB: Add Hygon Device ID

NTB: Add Hygon Device ID

2019-12-07T21:29:44Z

Signed-off-by: Jiasen Lin Signed-off-by: Jon Mason

ntb: ntb_pingpong: no need to check the return value of debugfs calls

2019-10-16T13:07:22Z

There is no need to check the return value of debugfs_create_atomic_t as nothing happens with the error. Also, the code will never return NULL, so this check has never caught anything :) Fix this by removing the check entirely. Cc: Jon Mason Cc: Dave Jiang Cc: Allen Hubbe Cc: linux-ntb@googlegroups.com Cc: linux-kernel@vger.kernel.org Link: https://lore.kernel.org/r/20191011131919.GA1174815@kroah.com Signed-off-by: Greg Kroah-Hartman

NTB: fix IDT Kconfig typos/spellos

2019-09-23T21:20:40Z

Fix typos in drivers/ntb/hw/idt/Kconfig. Use consistent spelling and capitalization. Fixes: bf2a952d31d2 ("NTB: Add IDT 89HPESxNTx PCIe-switches support") Signed-off-by: Randy Dunlap Cc: Dave Jiang Cc: Allen Hubbe Cc: Serge Semin Signed-off-by: Jon Mason

ntb_hw_amd: Add memory window support for new AMD hardware

2019-09-23T21:20:40Z

The AMD new hardware uses BAR23 and BAR45 as memory windows as compared to previos where BAR1, BAR23 and BAR45 is used for memory windows. This patch add support for both AMD hardwares. Signed-off-by: Sanjay R Mehta Signed-off-by: Jon Mason

ntb_hw_amd: Add a new NTB PCI device ID

2019-09-23T21:20:40Z

Signed-off-by: Sanjay R Mehta Signed-off-by: Jon Mason

NTB: ntb_transport: remove redundant assignment to rc

2019-09-23T21:20:40Z

Variable rc is initialized to a value that is never read and it is re-assigned later. The initialization is redundant and can be removed. Addresses-Coverity: ("Unused value") Signed-off-by: Colin Ian King Signed-off-by: Jon Mason

ntb_hw_switchtec: make ntb_mw_set_trans() work when addr == 0

2019-09-23T21:20:40Z

On switchtec_ntb_mw_set_trans() call, when (only) address == 0, it acts as ntb_mw_clear_trans(). Fix this, since address == 0 and size != 0 is valid combination for setting translation. Signed-off-by: Alexander Fomichev Reviewed-by: Logan Gunthorpe Signed-off-by: Jon Mason

ntb: point to right memory window index

2019-09-23T21:20:27Z

second parameter of ntb_peer_mw_get_addr is pointing to wrong memory window index by passing "peer gidx" instead of "local gidx". For ex, "local gidx" value is '0' and "peer gidx" value is '1', then on peer side ntb_mw_set_trans() api is used as below with gidx pointing to local side gidx which is '0', so memroy window '0' is chosen and XLAT '0' will be programmed by peer side. ntb_mw_set_trans(perf->ntb, peer->pidx, peer->gidx, peer->inbuf_xlat, peer->inbuf_size); Now, on local side ntb_peer_mw_get_addr() is been used as below with gidx pointing to "peer gidx" which is '1', so pointing to memory window '1' instead of memory window '0'. ntb_peer_mw_get_addr(perf->ntb, peer->gidx, &phys_addr, &peer->outbuf_size); So this patch pass "local gidx" as parameter to ntb_peer_mw_get_addr(). Signed-off-by: Sanjay R Mehta Signed-off-by: Jon Mason

NTB/msi: remove incorrect MODULE defines

2019-08-05T19:42:27Z

msi.c is not a module on its own right and should not have the MODULE_[LICENSE|VERSION|AUTHOR|DESCRIPTION] definitions. This caused a regression noticed by lkp with the following back trace: WARNING: CPU: 0 PID: 1 at kernel/params.c:861 param_sysfs_init+0xb1/0x20a Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc1-00018-g26b3a37b928457 #2 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014 RIP: 0010:param_sysfs_init+0xb1/0x20a Code: 24 38 e8 ec 17 2e fd 49 8b 7c 24 38 e8 76 fe ff ff 48 85 c0 48 89 c5 74 25 31 d2 4c 89 e6 48 89 c7 e8 6d 6f 3c fd 85 c0 74 02 <0f> 0b 48 89 ef 31 f6 e8 5d 70 a7 fe 48 89 ef e8 95 52 a7 fe 48 83 RSP: 0000:ffff88806b0ffe30 EFLAGS: 00010282 RAX: 00000000ffffffef RBX: ffffffff83774220 RCX: ffff88806a85e880 RDX: 00000000ffffffef RSI: ffff88806b000400 RDI: ffff88806a8608c0 RBP: ffff88806b392000 R08: ffffed100d61ff59 R09: ffffed100d61ff59 R10: 0000000000000001 R11: ffffed100d61ff58 R12: ffffffff83974bc0 R13: 0000000000000004 R14: 0000000000000028 R15: 00000000000003b9 FS: 0000000000000000(0000) GS:ffff88806b800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000000380e000 CR4: 00000000000406b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ? file_caps_disable+0x10/0x10 ? locate_module_kobject+0xf2/0xf2 do_one_initcall+0x47/0x1f0 kernel_init_freeable+0x1b1/0x243 ? rest_init+0xd0/0xd0 kernel_init+0xa/0x130 ? calculate_sigpending+0x63/0x80 ? rest_init+0xd0/0xd0 ret_from_fork+0x1f/0x30 ---[ end trace 78201497ae74cc91 ]--- Reported-by: kernel test robot Fixes: 26b3a37b9284 ("NTB: Introduce MSI library") Signed-off-by: Logan Gunthorpe Signed-off-by: Jon Mason