xsk.c - OpenGrok cross reference for /kernel/linux/linux-5.10/tools/lib/bpf/xsk.c

Lines Matching refs:ctx
78 	struct xsk_ctx *ctx;
359 	struct xsk_ctx *ctx = xsk->ctx;
364 	 * SEC("xdp_sock") int xdp_sock_prog(struct xdp_md *ctx)
366 	 *     int ret, index = ctx->rx_queue_index;
387 		BPF_LD_MAP_FD(BPF_REG_1, ctx->xsks_map_fd),
399 		BPF_LD_MAP_FD(BPF_REG_1, ctx->xsks_map_fd),
411 		BPF_LD_MAP_FD(BPF_REG_1, ctx->xsks_map_fd),
429 	err = bpf_set_link_xdp_fd(xsk->ctx->ifindex, prog_fd,
436 	ctx->prog_fd = prog_fd;
443 	struct xsk_ctx *ctx = xsk->ctx;
452 	memcpy(ifr.ifr_name, ctx->ifname, IFNAMSIZ - 1);
480 	struct xsk_ctx *ctx = xsk->ctx;
493 	ctx->xsks_map_fd = fd;
500 	struct xsk_ctx *ctx = xsk->ctx;
502 	bpf_map_delete_elem(ctx->xsks_map_fd, &ctx->queue_id);
503 	close(ctx->xsks_map_fd);
511 	struct xsk_ctx *ctx = xsk->ctx;
515 	err = bpf_obj_get_info_by_fd(ctx->prog_fd, &prog_info, &prog_len);
529 	err = bpf_obj_get_info_by_fd(ctx->prog_fd, &prog_info, &prog_len);
533 	ctx->xsks_map_fd = -1;
548 			ctx->xsks_map_fd = fd;
556 	if (ctx->xsks_map_fd == -1)
566 	struct xsk_ctx *ctx = xsk->ctx;
568 	return bpf_map_update_elem(ctx->xsks_map_fd, &ctx->queue_id,
574 	struct xsk_ctx *ctx = xsk->ctx;
578 	err = bpf_get_link_xdp_id(ctx->ifindex, &prog_id,
594 		ctx->prog_fd = bpf_prog_get_fd_by_id(prog_id);
595 		if (ctx->prog_fd < 0)
599 			close(ctx->prog_fd);
608 		close(ctx->prog_fd);
618 	struct xsk_ctx *ctx;
623 	list_for_each_entry(ctx, &umem->ctx_list, list) {
624 		if (ctx->ifindex == ifindex && ctx->queue_id == queue_id) {
625 			ctx->refcount++;
626 			return ctx;
633 static void xsk_put_ctx(struct xsk_ctx *ctx, bool unmap)
635 	struct xsk_umem *umem = ctx->umem;
639 	if (--ctx->refcount)
649 	munmap(ctx->fill->ring - off.fr.desc, off.fr.desc + umem->config.fill_size *
651 	munmap(ctx->comp->ring - off.cr.desc, off.cr.desc + umem->config.comp_size *
655 	list_del(&ctx->list);
656 	free(ctx);
665 	struct xsk_ctx *ctx;
668 	ctx = calloc(1, sizeof(*ctx));
669 	if (!ctx)
675 			free(ctx);
684 	ctx->ifindex = ifindex;
685 	ctx->refcount = 1;
686 	ctx->umem = umem;
687 	ctx->queue_id = queue_id;
688 	memcpy(ctx->ifname, ifname, IFNAMSIZ - 1);
689 	ctx->ifname[IFNAMSIZ - 1] = '\0';
691 	ctx->fill = fill;
692 	ctx->comp = comp;
693 	list_add(&ctx->list, &umem->ctx_list);
694 	return ctx;
711 	struct xsk_ctx *ctx;
746 	ctx = xsk_get_ctx(umem, ifindex, queue_id);
747 	if (!ctx) {
753 		ctx = xsk_create_ctx(xsk, umem, ifindex, ifname, queue_id,
755 		if (!ctx) {
760 	xsk->ctx = ctx;
837 	sxdp.sxdp_ifindex = ctx->ifindex;
838 	sxdp.sxdp_queue_id = ctx->queue_id;
872 	xsk_put_ctx(ctx, unmap);
924 	struct xsk_ctx *ctx;
930 	ctx = xsk->ctx;
931 	umem = ctx->umem;
933 	if (ctx->refcount == 1) {
935 		close(ctx->prog_fd);
938 	xsk_put_ctx(ctx, true);