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[192.55.54.38]) by smtp.gmail.com with ESMTPSA id y8sm6161629pfe.33.2020.11.12.03.41.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 12 Nov 2020 03:41:54 -0800 (PST) From: =?utf-8?b?QmrDtnJuIFTDtnBlbA==?= To: netdev@vger.kernel.org, bpf@vger.kernel.org Cc: =?utf-8?b?QmrDtnJuIFTDtnBlbA==?= , magnus.karlsson@intel.com, ast@kernel.org, daniel@iogearbox.net, maciej.fijalkowski@intel.com, sridhar.samudrala@intel.com, jesse.brandeburg@intel.com, qi.z.zhang@intel.com, kuba@kernel.org, edumazet@google.com, jonathan.lemon@gmail.com, maximmi@nvidia.com Subject: [PATCH bpf-next 7/9] samples/bpf: use recvfrom() in xdpsock Date: Thu, 12 Nov 2020 12:40:39 +0100 Message-Id: <20201112114041.131998-8-bjorn.topel@gmail.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20201112114041.131998-1-bjorn.topel@gmail.com> References: <20201112114041.131998-1-bjorn.topel@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Björn Töpel Start using recvfrom() the rxdrop scenario. Signed-off-by: Björn Töpel --- samples/bpf/xdpsock_user.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/samples/bpf/xdpsock_user.c b/samples/bpf/xdpsock_user.c index 1149e94ca32f..96d0b6482ac4 100644 --- a/samples/bpf/xdpsock_user.c +++ b/samples/bpf/xdpsock_user.c @@ -1172,7 +1172,7 @@ static inline void complete_tx_only(struct xsk_socket_info *xsk, } } -static void rx_drop(struct xsk_socket_info *xsk, struct pollfd *fds) +static void rx_drop(struct xsk_socket_info *xsk) { unsigned int rcvd, i; u32 idx_rx = 0, idx_fq = 0; @@ -1182,7 +1182,7 @@ static void rx_drop(struct xsk_socket_info *xsk, struct pollfd *fds) if (!rcvd) { if (xsk_ring_prod__needs_wakeup(&xsk->umem->fq)) { xsk->app_stats.rx_empty_polls++; - ret = poll(fds, num_socks, opt_timeout); + recvfrom(xsk_socket__fd(xsk->xsk), NULL, 0, MSG_DONTWAIT, NULL, NULL); } return; } @@ -1193,7 +1193,7 @@ static void rx_drop(struct xsk_socket_info *xsk, struct pollfd *fds) exit_with_error(-ret); if (xsk_ring_prod__needs_wakeup(&xsk->umem->fq)) { xsk->app_stats.fill_fail_polls++; - ret = poll(fds, num_socks, opt_timeout); + recvfrom(xsk_socket__fd(xsk->xsk), NULL, 0, MSG_DONTWAIT, NULL, NULL); } ret = xsk_ring_prod__reserve(&xsk->umem->fq, rcvd, &idx_fq); } @@ -1235,7 +1235,7 @@ static void rx_drop_all(void) } for (i = 0; i < num_socks; i++) - rx_drop(xsks[i], fds); + rx_drop(xsks[i]); if (benchmark_done) break;