From 2b05705dc8ad80c09a3aa9cc70c14fb8323b0fd3 Mon Sep 17 00:00:00 2001 From: Yuval Shaia Date: Fri, 21 Dec 2018 16:40:25 +0200 Subject: hw/pvrdma: Add support to allow guest to configure GID table 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 Reviewed-by: Marcel Apfelbaum Signed-off-by: Marcel Apfelbaum --- hw/rdma/rdma_utils.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'hw/rdma/rdma_utils.h') diff --git a/hw/rdma/rdma_utils.h b/hw/rdma/rdma_utils.h index c4f96c4f2a..062e2cd688 100644 --- a/hw/rdma/rdma_utils.h +++ b/hw/rdma/rdma_utils.h @@ -19,6 +19,7 @@ #include "hw/pci/pci.h" #include "sysemu/dma.h" +#include "stdio.h" #define pr_info(fmt, ...) \ fprintf(stdout, "%s: %-20s (%3d): " fmt, "rdma", __func__, __LINE__,\ @@ -39,9 +40,24 @@ extern unsigned long pr_dbg_cnt; #define pr_dbg(fmt, ...) \ fprintf(stdout, "%lx %ld: %-20s (%3d): " fmt, pthread_self(), pr_dbg_cnt++, \ __func__, __LINE__, ## __VA_ARGS__) + +#define pr_dbg_buf(title, buf, len) \ +{ \ + int i; \ + char *b = g_malloc0(len * 3 + 1); \ + char b1[4]; \ + for (i = 0; i < len; i++) { \ + sprintf(b1, "%.2X ", buf[i] & 0x000000FF); \ + strcat(b, b1); \ + } \ + pr_dbg("%s (%d): %s\n", title, len, b); \ + g_free(b); \ +} + #else #define init_pr_dbg(void) #define pr_dbg(fmt, ...) +#define pr_dbg_buf(title, buf, len) #endif void *rdma_pci_dma_map(PCIDevice *dev, dma_addr_t addr, dma_addr_t plen); -- cgit 1.4.1