2b05705dc8
The control over the RDMA device's GID table is done by updating the device's Ethernet function addresses. Usually the first GID entry is determined by the MAC address, the second by the first IPv6 address and the third by the IPv4 address. Other entries can be added by adding more IP addresses. The opposite is the same, i.e. whenever an address is removed, the corresponding GID entry is removed. The process is done by the network and RDMA stacks. Whenever an address is added the ib_core driver is notified and calls the device driver add_gid function which in turn update the device. To support this in pvrdma device we need to hook into the create_bind and destroy_bind HW commands triggered by pvrdma driver in guest. Whenever a change is made to the pvrdma port's GID table a special QMP message is sent to be processed by libvirt to update the address of the backend Ethernet device. Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com> Reviewed-by: Marcel Apfelbaum<marcel.apfelbaum@gmail.com> Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
67 lines
1.5 KiB
C
67 lines
1.5 KiB
C
/*
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* RDMA device: Debug utilities
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*
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* Copyright (C) 2018 Oracle
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* Copyright (C) 2018 Red Hat Inc
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*
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*
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* Authors:
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* Yuval Shaia <yuval.shaia@oracle.com>
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* Marcel Apfelbaum <marcel@redhat.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*
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*/
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#ifndef RDMA_UTILS_H
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#define RDMA_UTILS_H
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#include "hw/pci/pci.h"
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#include "sysemu/dma.h"
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#include "stdio.h"
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#define pr_info(fmt, ...) \
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fprintf(stdout, "%s: %-20s (%3d): " fmt, "rdma", __func__, __LINE__,\
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## __VA_ARGS__)
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#define pr_err(fmt, ...) \
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fprintf(stderr, "%s: Error at %-20s (%3d): " fmt, "rdma", __func__, \
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__LINE__, ## __VA_ARGS__)
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#ifdef PVRDMA_DEBUG
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extern unsigned long pr_dbg_cnt;
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#define init_pr_dbg(void) \
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{ \
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pr_dbg_cnt = 0; \
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}
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#define pr_dbg(fmt, ...) \
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fprintf(stdout, "%lx %ld: %-20s (%3d): " fmt, pthread_self(), pr_dbg_cnt++, \
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__func__, __LINE__, ## __VA_ARGS__)
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#define pr_dbg_buf(title, buf, len) \
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{ \
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int i; \
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char *b = g_malloc0(len * 3 + 1); \
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char b1[4]; \
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for (i = 0; i < len; i++) { \
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sprintf(b1, "%.2X ", buf[i] & 0x000000FF); \
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strcat(b, b1); \
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} \
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pr_dbg("%s (%d): %s\n", title, len, b); \
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g_free(b); \
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}
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#else
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#define init_pr_dbg(void)
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#define pr_dbg(fmt, ...)
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#define pr_dbg_buf(title, buf, len)
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#endif
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void *rdma_pci_dma_map(PCIDevice *dev, dma_addr_t addr, dma_addr_t plen);
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void rdma_pci_dma_unmap(PCIDevice *dev, void *buffer, dma_addr_t len);
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#endif
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