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

Pull rdma updates from Jason Gunthorpe:
 "A more active cycle than most of the recent past, with a few large,
  long discussed works this time.

  The RNBD block driver has been posted for nearly two years now, and
  flowing through RDMA due to it also introducing a new ULP.

  The removal of FMR has been a recurring discussion theme for a long
  time.

  And the usual smattering of features and bug fixes.

  Summary:

   - Various small driver bugs fixes in rxe, mlx5, hfi1, and efa

   - Continuing driver cleanups in bnxt_re, hns

   - Big cleanup of mlx5 QP creation flows

   - More consistent use of src port and flow label when LAG is used and
     a mlx5 implementation

   - Additional set of cleanups for IB CM

   - 'RNBD' network block driver and target. This is a network block
     RDMA device specific to ionos's cloud environment. It brings strong
     multipath and resiliency capabilities.

   - Accelerated IPoIB for HFI1

   - QP/WQ/SRQ ioctl migration for uverbs, and support for multiple
     async fds

   - Support for exchanging the new IBTA defiend ECE data during RDMA CM
     exchanges

   - Removal of the very old and insecure FMR interface from all ULPs
     and drivers. FRWR should be preferred for at least a decade now"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (247 commits)
  RDMA/cm: Spurious WARNING triggered in cm_destroy_id()
  RDMA/mlx5: Return ECE DC support
  RDMA/mlx5: Don't rely on FW to set zeros in ECE response
  RDMA/mlx5: Return an error if copy_to_user fails
  IB/hfi1: Use free_netdev() in hfi1_netdev_free()
  RDMA/hns: Uninitialized variable in modify_qp_init_to_rtr()
  RDMA/core: Move and rename trace_cm_id_create()
  IB/hfi1: Fix hfi1_netdev_rx_init() error handling
  RDMA: Remove 'max_map_per_fmr'
  RDMA: Remove 'max_fmr'
  RDMA/core: Remove FMR device ops
  RDMA/rdmavt: Remove FMR memory registration
  RDMA/mthca: Remove FMR support for memory registration
  RDMA/mlx4: Remove FMR support for memory registration
  RDMA/i40iw: Remove FMR leftovers
  RDMA/bnxt_re: Remove FMR leftovers
  RDMA/mlx5: Remove FMR leftovers
  RDMA/core: Remove FMR pool API
  RDMA/rds: Remove FMR support for memory registration
  RDMA/srp: Remove support for FMR memory registration
  ...

1 files changed, 14 insertions, 24 deletions

diff --git a/drivers/infiniband/hw/hfi1/hfi.h b/drivers/infiniband/hw/hfi1/hfi.h
index b06c2594105a..b4c6bff60a4e 100644
--- a/drivers/infiniband/hw/hfi1/hfi.h
+++ b/drivers/infiniband/hw/hfi1/hfi.h
@@ -1,7 +1,7 @@
 #ifndef _HFI1_KERNEL_H
 #define _HFI1_KERNEL_H
 /*
- * Copyright(c) 2015-2018 Intel Corporation.
+ * Copyright(c) 2015-2020 Intel Corporation.
  *
  * This file is provided under a dual BSD/GPLv2 license.  When using or
  * redistributing this file, you may do so under either license.
@@ -233,6 +233,8 @@ struct hfi1_ctxtdata {
 	intr_handler fast_handler;
 	/** slow handler */
 	intr_handler slow_handler;
+	/* napi pointer assiociated with netdev */
+	struct napi_struct *napi;
 	/* verbs rx_stats per rcd */
 	struct hfi1_opcode_stats_perctx *opstats;
 	/* clear interrupt mask */
@@ -383,11 +385,11 @@ struct hfi1_packet {
 	u32 rhqoff;
 	u32 dlid;
 	u32 slid;
+	int numpkt;
 	u16 tlen;
 	s16 etail;
 	u16 pkey;
 	u8 hlen;
-	u8 numpkt;
 	u8 rsize;
 	u8 updegr;
 	u8 etype;
@@ -985,7 +987,7 @@ typedef void (*hfi1_make_req)(struct rvt_qp *qp,
 			      struct hfi1_pkt_state *ps,
 			      struct rvt_swqe *wqe);
 extern const rhf_rcv_function_ptr normal_rhf_rcv_functions[];
-
+extern const rhf_rcv_function_ptr netdev_rhf_rcv_functions[];
 
 /* return values for the RHF receive functions */
 #define RHF_RCV_CONTINUE  0	/* keep going */
@@ -1045,23 +1047,10 @@ struct hfi1_asic_data {
 #define NUM_MAP_ENTRIES	 256
 #define NUM_MAP_REGS      32
 
-/*
- * Number of VNIC contexts used. Ensure it is less than or equal to
- * max queues supported by VNIC (HFI1_VNIC_MAX_QUEUE).
- */
-#define HFI1_NUM_VNIC_CTXT   8
-
-/* Number of VNIC RSM entries */
-#define NUM_VNIC_MAP_ENTRIES 8
-
 /* Virtual NIC information */
 struct hfi1_vnic_data {
-	struct hfi1_ctxtdata *ctxt[HFI1_NUM_VNIC_CTXT];
 	struct kmem_cache *txreq_cache;
-	struct xarray vesws;
 	u8 num_vports;
-	u8 rmt_start;
-	u8 num_ctxt;
 };
 
 struct hfi1_vnic_vport_info;
@@ -1167,8 +1156,8 @@ struct hfi1_devdata {
 	u64 z_send_schedule;
 
 	u64 __percpu *send_schedule;
-	/* number of reserved contexts for VNIC usage */
-	u16 num_vnic_contexts;
+	/* number of reserved contexts for netdev usage */
+	u16 num_netdev_contexts;
 	/* number of receive contexts in use by the driver */
 	u32 num_rcv_contexts;
 	/* number of pio send contexts in use by the driver */
@@ -1417,12 +1406,12 @@ struct hfi1_devdata {
 	struct hfi1_vnic_data vnic;
 	/* Lock to protect IRQ SRC register access */
 	spinlock_t irq_src_lock;
-};
+	int vnic_num_vports;
+	struct net_device *dummy_netdev;
 
-static inline bool hfi1_vnic_is_rsm_full(struct hfi1_devdata *dd, int spare)
-{
-	return (dd->vnic.rmt_start + spare) > NUM_MAP_ENTRIES;
-}
+	/* Keeps track of IPoIB RSM rule users */
+	atomic_t ipoib_rsm_usr_num;
+};
 
 /* 8051 firmware version helper */
 #define dc8051_ver(a, b, c) ((a) << 16 | (b) << 8 | (c))
@@ -1500,6 +1489,8 @@ struct hfi1_ctxtdata *hfi1_rcd_get_by_index(struct hfi1_devdata *dd, u16 ctxt);
 int handle_receive_interrupt(struct hfi1_ctxtdata *rcd, int thread);
 int handle_receive_interrupt_nodma_rtail(struct hfi1_ctxtdata *rcd, int thread);
 int handle_receive_interrupt_dma_rtail(struct hfi1_ctxtdata *rcd, int thread);
+int handle_receive_interrupt_napi_fp(struct hfi1_ctxtdata *rcd, int budget);
+int handle_receive_interrupt_napi_sp(struct hfi1_ctxtdata *rcd, int budget);
 void set_all_slowpath(struct hfi1_devdata *dd);
 
 extern const struct pci_device_id hfi1_pci_tbl[];
@@ -2250,7 +2241,6 @@ extern int num_user_contexts;
 extern unsigned long n_krcvqs;
 extern uint krcvqs[];
 extern int krcvqsset;
-extern uint kdeth_qp;
 extern uint loopback;
 extern uint quick_linkup;
 extern uint rcv_intr_timeout;