Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma

Pull base rdma updates from Doug Ledford:
 "Round one of 4.8 code: while this is mostly normal, there is a new
  driver in here (the driver was hosted outside the kernel for several
  years and is actually a fairly mature and well coded driver).  It
  amounts to 13,000 of the 16,000 lines of added code in here.

  Summary:

   - Updates/fixes for iw_cxgb4 driver
   - Updates/fixes for mlx5 driver
   - Add flow steering and RSS API
   - Add hardware stats to mlx4 and mlx5 drivers
   - Add firmware version API for RDMA driver use
   - Add the rxe driver (this is a software RoCE driver that makes any
     Ethernet device a RoCE device)
   - Fixes for i40iw driver
   - Support for send only multicast joins in the cma layer
   - Other minor fixes"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (72 commits)
  Soft RoCE driver
  IB/core: Support for CMA multicast join flags
  IB/sa: Add cached attribute containing SM information to SA port
  IB/uverbs: Fix race between uverbs_close and remove_one
  IB/mthca: Clean up error unwind flow in mthca_reset()
  IB/mthca: NULL arg to pci_dev_put is OK
  IB/hfi1: NULL arg to sc_return_credits is OK
  IB/mlx4: Add diagnostic hardware counters
  net/mlx4: Query performance and diagnostics counters
  net/mlx4: Add diagnostic counters capability bit
  Use smaller 512 byte messages for portmapper messages
  IB/ipoib: Report SG feature regardless of HW UD CSUM capability
  IB/mlx4: Don't use GFP_ATOMIC for CQ resize struct
  IB/hfi1: Disable by default
  IB/rdmavt: Disable by default
  IB/mlx5: Fix port counter ID association to QP offset
  IB/mlx5: Fix iteration overrun in GSI qps
  i40iw: Add NULL check for puda buffer
  i40iw: Change dup_ack_thresh to u8
  i40iw: Remove unnecessary check for moving CQ head
  ...

4 files changed, 18 insertions, 2 deletions

diff --git a/drivers/infiniband/hw/hfi1/Kconfig b/drivers/infiniband/hw/hfi1/Kconfig
index a925fb0db706..f846fd51b85b 100644
--- a/drivers/infiniband/hw/hfi1/Kconfig
+++ b/drivers/infiniband/hw/hfi1/Kconfig
@@ -3,7 +3,6 @@ config INFINIBAND_HFI1
 	depends on X86_64 && INFINIBAND_RDMAVT
 	select MMU_NOTIFIER
 	select CRC32
-	default m
 	---help---
 	This is a low-level driver for Intel OPA Gen1 adapter.
 config HFI1_DEBUG_SDMA_ORDER
diff --git a/drivers/infiniband/hw/hfi1/file_ops.c b/drivers/infiniband/hw/hfi1/file_ops.c
index c702a009608f..32c19fad12a4 100644
--- a/drivers/infiniband/hw/hfi1/file_ops.c
+++ b/drivers/infiniband/hw/hfi1/file_ops.c
@@ -228,7 +228,7 @@ static long hfi1_file_ioctl(struct file *fp, unsigned int cmd,
 				    sizeof(struct hfi1_base_info));
 		break;
 	case HFI1_IOCTL_CREDIT_UPD:
-		if (uctxt && uctxt->sc)
+		if (uctxt)
 			sc_return_credits(uctxt->sc);
 		break;
 
diff --git a/drivers/infiniband/hw/hfi1/hfi.h b/drivers/infiniband/hw/hfi1/hfi.h
index 4417a0fd3ef9..49a71e24a8f0 100644
--- a/drivers/infiniband/hw/hfi1/hfi.h
+++ b/drivers/infiniband/hw/hfi1/hfi.h
@@ -1174,6 +1174,8 @@ struct hfi1_devdata {
 
 /* 8051 firmware version helper */
 #define dc8051_ver(a, b) ((a) << 8 | (b))
+#define dc8051_ver_maj(a) ((a & 0xff00) >> 8)
+#define dc8051_ver_min(a)  (a & 0x00ff)
 
 /* f_put_tid types */
 #define PT_EXPECTED 0
diff --git a/drivers/infiniband/hw/hfi1/verbs.c b/drivers/infiniband/hw/hfi1/verbs.c
index 849c4b9399d4..dd4be3c2b225 100644
--- a/drivers/infiniband/hw/hfi1/verbs.c
+++ b/drivers/infiniband/hw/hfi1/verbs.c
@@ -1291,9 +1291,12 @@ int hfi1_verbs_send(struct rvt_qp *qp, struct hfi1_pkt_state *ps)
 static void hfi1_fill_device_attr(struct hfi1_devdata *dd)
 {
 	struct rvt_dev_info *rdi = &dd->verbs_dev.rdi;
+	u16 ver = dd->dc8051_ver;
 
 	memset(&rdi->dparms.props, 0, sizeof(rdi->dparms.props));
 
+	rdi->dparms.props.fw_ver = ((u64)(dc8051_ver_maj(ver)) << 16) |
+				    (u64)dc8051_ver_min(ver);
 	rdi->dparms.props.device_cap_flags = IB_DEVICE_BAD_PKEY_CNTR |
 			IB_DEVICE_BAD_QKEY_CNTR | IB_DEVICE_SHUTDOWN_PORT |
 			IB_DEVICE_SYS_IMAGE_GUID | IB_DEVICE_RC_RNR_NAK_GEN |
@@ -1567,6 +1570,17 @@ static void init_ibport(struct hfi1_pportdata *ppd)
 	RCU_INIT_POINTER(ibp->rvp.qp[1], NULL);
 }
 
+static void hfi1_get_dev_fw_str(struct ib_device *ibdev, char *str,
+				size_t str_len)
+{
+	struct rvt_dev_info *rdi = ib_to_rvt(ibdev);
+	struct hfi1_ibdev *dev = dev_from_rdi(rdi);
+	u16 ver = dd_from_dev(dev)->dc8051_ver;
+
+	snprintf(str, str_len, "%u.%u", dc8051_ver_maj(ver),
+		 dc8051_ver_min(ver));
+}
+
 /**
  * hfi1_register_ib_device - register our device with the infiniband core
  * @dd: the device data structure
@@ -1613,6 +1627,7 @@ int hfi1_register_ib_device(struct hfi1_devdata *dd)
 
 	/* keep process mad in the driver */
 	ibdev->process_mad = hfi1_process_mad;
+	ibdev->get_dev_fw_str = hfi1_get_dev_fw_str;
 
 	strncpy(ibdev->node_desc, init_utsname()->nodename,
 		sizeof(ibdev->node_desc));