hw/rdma: Remove deprecated pvrdma device and rdmacm-mux helper

The whole RDMA subsystem was deprecated in commit e9a54265f5
("hw/rdma: Deprecate the pvrdma device and the rdma subsystem")
released in v8.2.

Remove:
 - PVRDMA device
 - generated vmw_pvrdma/ directory from linux-headers
 - rdmacm-mux tool from contrib/

Cc: Yuval Shaia <yuval.shaia.ml@gmail.com>
Cc: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20240328130255.52257-2-philmd@linaro.org>

1 files changed, 0 insertions, 141 deletions

diff --git a/hw/rdma/vmw/pvrdma_dev_ring.c b/hw/rdma/vmw/pvrdma_dev_ring.c
deleted file mode 100644
index 30ce22a5be..0000000000
--- a/hw/rdma/vmw/pvrdma_dev_ring.c
+++ /dev/null
@@ -1,141 +0,0 @@
-/*
- * QEMU paravirtual RDMA - Device rings
- *
- * Copyright (C) 2018 Oracle
- * Copyright (C) 2018 Red Hat Inc
- *
- * Authors:
- *     Yuval Shaia <yuval.shaia@oracle.com>
- *     Marcel Apfelbaum <marcel@redhat.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- *
- */
-
-#include "qemu/osdep.h"
-#include "hw/pci/pci.h"
-#include "cpu.h"
-#include "qemu/cutils.h"
-
-#include "trace.h"
-
-#include "../rdma_utils.h"
-#include "pvrdma_dev_ring.h"
-
-int pvrdma_ring_init(PvrdmaRing *ring, const char *name, PCIDevice *dev,
-                     PvrdmaRingState *ring_state, uint32_t max_elems,
-                     size_t elem_sz, dma_addr_t *tbl, uint32_t npages)
-{
-    int i;
-    int rc = 0;
-
-    pstrcpy(ring->name, MAX_RING_NAME_SZ, name);
-    ring->dev = dev;
-    ring->ring_state = ring_state;
-    ring->max_elems = max_elems;
-    ring->elem_sz = elem_sz;
-    /* TODO: Give a moment to think if we want to redo driver settings
-    qatomic_set(&ring->ring_state->prod_tail, 0);
-    qatomic_set(&ring->ring_state->cons_head, 0);
-    */
-    ring->npages = npages;
-    ring->pages = g_new0(void *, npages);
-
-    for (i = 0; i < npages; i++) {
-        if (!tbl[i]) {
-            rdma_error_report("npages=%d but tbl[%d] is NULL", npages, i);
-            continue;
-        }
-
-        ring->pages[i] = rdma_pci_dma_map(dev, tbl[i], TARGET_PAGE_SIZE);
-        if (!ring->pages[i]) {
-            rc = -ENOMEM;
-            rdma_error_report("Failed to map to page %d in ring %s", i, name);
-            goto out_free;
-        }
-        memset(ring->pages[i], 0, TARGET_PAGE_SIZE);
-    }
-
-    goto out;
-
-out_free:
-    while (i--) {
-        rdma_pci_dma_unmap(dev, ring->pages[i], TARGET_PAGE_SIZE);
-    }
-    g_free(ring->pages);
-
-out:
-    return rc;
-}
-
-void *pvrdma_ring_next_elem_read(PvrdmaRing *ring)
-{
-    unsigned int idx, offset;
-    const uint32_t tail = qatomic_read(&ring->ring_state->prod_tail);
-    const uint32_t head = qatomic_read(&ring->ring_state->cons_head);
-
-    if (tail & ~((ring->max_elems << 1) - 1) ||
-        head & ~((ring->max_elems << 1) - 1) ||
-        tail == head) {
-        trace_pvrdma_ring_next_elem_read_no_data(ring->name);
-        return NULL;
-    }
-
-    idx = head & (ring->max_elems - 1);
-    offset = idx * ring->elem_sz;
-    return ring->pages[offset / TARGET_PAGE_SIZE] + (offset % TARGET_PAGE_SIZE);
-}
-
-void pvrdma_ring_read_inc(PvrdmaRing *ring)
-{
-    uint32_t idx = qatomic_read(&ring->ring_state->cons_head);
-
-    idx = (idx + 1) & ((ring->max_elems << 1) - 1);
-    qatomic_set(&ring->ring_state->cons_head, idx);
-}
-
-void *pvrdma_ring_next_elem_write(PvrdmaRing *ring)
-{
-    unsigned int idx, offset;
-    const uint32_t tail = qatomic_read(&ring->ring_state->prod_tail);
-    const uint32_t head = qatomic_read(&ring->ring_state->cons_head);
-
-    if (tail & ~((ring->max_elems << 1) - 1) ||
-        head & ~((ring->max_elems << 1) - 1) ||
-        tail == (head ^ ring->max_elems)) {
-        rdma_error_report("CQ is full");
-        return NULL;
-    }
-
-    idx = tail & (ring->max_elems - 1);
-    offset = idx * ring->elem_sz;
-    return ring->pages[offset / TARGET_PAGE_SIZE] + (offset % TARGET_PAGE_SIZE);
-}
-
-void pvrdma_ring_write_inc(PvrdmaRing *ring)
-{
-    uint32_t idx = qatomic_read(&ring->ring_state->prod_tail);
-
-    idx = (idx + 1) & ((ring->max_elems << 1) - 1);
-    qatomic_set(&ring->ring_state->prod_tail, idx);
-}
-
-void pvrdma_ring_free(PvrdmaRing *ring)
-{
-    if (!ring) {
-        return;
-    }
-
-    if (!ring->pages) {
-        return;
-    }
-
-    while (ring->npages--) {
-        rdma_pci_dma_unmap(ring->dev, ring->pages[ring->npages],
-                           TARGET_PAGE_SIZE);
-    }
-
-    g_free(ring->pages);
-    ring->pages = NULL;
-}