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[204.195.96.226]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-481a5e2ba7asm4819435e9.20.2026.01.29.12.26.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 29 Jan 2026 12:26:42 -0800 (PST) From: Stephen Hemminger To: dev@dpdk.org Cc: Stephen Hemminger , stable@dpdk.org, Tetsuya Mukawa , Bernard Iremonger Subject: [PATCH v9 1/5] net/null: cleanup info response Date: Thu, 29 Jan 2026 12:25:27 -0800 Message-ID: <20260129202635.173530-2-stephen@networkplumber.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260129202635.173530-1-stephen@networkplumber.org> References: <20260104222523.329760-1-stephen@networkplumber.org> <20260129202635.173530-1-stephen@networkplumber.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org The info_get callback doesn't need to check its args since already done by ethdev. The null driver generates fake packets of configured packet_size. The mbuf pool passed when setting up Rx queue must have space to hold the requested packet size; otherwise eth_null_copy_rx() would generate invalid mbufs. Setting min_rx_bufsize to packet_size enables the existing validation in rte_eth_rx_queue_setup() to reject undersized pools. Fixes: c743e50c475f ("null: new poll mode driver") Cc: stable@dpdk.org Signed-off-by: Stephen Hemminger --- drivers/net/null/rte_eth_null.c | 10 +++------- 1 file changed, 3 insertions(+), 7 deletions(-) diff --git a/drivers/net/null/rte_eth_null.c b/drivers/net/null/rte_eth_null.c index 46e7e7bd8c..ba87c82a73 100644 --- a/drivers/net/null/rte_eth_null.c +++ b/drivers/net/null/rte_eth_null.c @@ -298,17 +298,13 @@ static int eth_dev_info(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info) { - struct pmd_internals *internals; - - if ((dev == NULL) || (dev_info == NULL)) - return -EINVAL; + struct pmd_internals *internals = dev->data->dev_private; - internals = dev->data->dev_private; dev_info->max_mac_addrs = 1; - dev_info->max_rx_pktlen = (uint32_t)-1; + dev_info->max_rx_pktlen = UINT32_MAX; dev_info->max_rx_queues = RTE_DIM(internals->rx_null_queues); dev_info->max_tx_queues = RTE_DIM(internals->tx_null_queues); - dev_info->min_rx_bufsize = 0; + dev_info->min_rx_bufsize = internals->packet_size; dev_info->tx_offload_capa = RTE_ETH_TX_OFFLOAD_MULTI_SEGS | RTE_ETH_TX_OFFLOAD_MT_LOCKFREE; dev_info->reta_size = internals->reta_size; -- 2.51.0