Signed-off-by: Hemant Agrawal <hemant.agra...@nxp.com>
Acked-by: Shreyansh Jain <shreyansh.j...@nxp.com>
---
drivers/net/dpaa/dpaa_ethdev.c | 75 +++++++++++++++++++++++++++++++++++++-----
drivers/net/dpaa/dpaa_ethdev.h | 3 +-
drivers/net/dpaa/dpaa_rxtx.c | 4 +--
drivers/net/dpaa/dpaa_rxtx.h | 2 --
4 files changed, 70 insertions(+), 14 deletions(-)
diff --git a/drivers/net/dpaa/dpaa_ethdev.c b/drivers/net/dpaa/dpaa_ethdev.c
index 5c0aafb..c49d3a5 100644
--- a/drivers/net/dpaa/dpaa_ethdev.c
+++ b/drivers/net/dpaa/dpaa_ethdev.c
@@ -47,7 +47,8 @@
/* Supported Rx offloads */
static uint64_t dev_rx_offloads_sup =
- DEV_RX_OFFLOAD_JUMBO_FRAME;
+ DEV_RX_OFFLOAD_JUMBO_FRAME |
+ DEV_RX_OFFLOAD_SCATTER;
/* Rx offloads which cannot be disabled */
static uint64_t dev_rx_offloads_nodis =
@@ -55,8 +56,7 @@ static uint64_t dev_rx_offloads_nodis =
DEV_RX_OFFLOAD_UDP_CKSUM |
DEV_RX_OFFLOAD_TCP_CKSUM |
DEV_RX_OFFLOAD_OUTER_IPV4_CKSUM |
- DEV_RX_OFFLOAD_CRC_STRIP |
- DEV_RX_OFFLOAD_SCATTER;
+ DEV_RX_OFFLOAD_CRC_STRIP;
/* Supported Tx offloads */
static uint64_t dev_tx_offloads_sup;
@@ -148,11 +148,30 @@ dpaa_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
struct dpaa_if *dpaa_intf = dev->data->dev_private;
uint32_t frame_size = mtu + ETHER_HDR_LEN + ETHER_CRC_LEN
+ VLAN_TAG_SIZE;
+ uint32_t buffsz = dev->data->min_rx_buf_size - RTE_PKTMBUF_HEADROOM;
PMD_INIT_FUNC_TRACE();
if (mtu < ETHER_MIN_MTU || frame_size > DPAA_MAX_RX_PKT_LEN)
return -EINVAL;
+ /*
+ * Refuse mtu that requires the support of scattered packets
+ * when this feature has not been enabled before.
+ */
+ if (dev->data->min_rx_buf_size &&
+ !dev->data->scattered_rx && frame_size > buffsz) {
+ DPAA_PMD_ERR("SG not enabled, will not fit in one buffer");
+ return -EINVAL;
+ }
+
+ /* check <seg size> * <max_seg> >= max_frame */
+ if (dev->data->min_rx_buf_size && dev->data->scattered_rx &&
+ (frame_size > buffsz * DPAA_SGT_MAX_ENTRIES)) {
+ DPAA_PMD_ERR("Too big to fit for Max SG list %d",
+ buffsz * DPAA_SGT_MAX_ENTRIES);
+ return -EINVAL;
+ }
+
if (frame_size > ETHER_MAX_LEN)
dev->data->dev_conf.rxmode.offloads &=
DEV_RX_OFFLOAD_JUMBO_FRAME;
@@ -196,13 +215,24 @@ dpaa_eth_dev_configure(struct rte_eth_dev *dev)
if (rx_offloads & DEV_RX_OFFLOAD_JUMBO_FRAME) {
if (dev->data->dev_conf.rxmode.max_rx_pkt_len <=
DPAA_MAX_RX_PKT_LEN) {
+ DPAA_PMD_DEBUG("enabling jumbo");
fman_if_set_maxfrm(dpaa_intf->fif,
dev->data->dev_conf.rxmode.max_rx_pkt_len);
- return 0;
+ dev->data->mtu =
+ dev->data->dev_conf.rxmode.max_rx_pkt_len -
+ ETHER_HDR_LEN - ETHER_CRC_LEN - VLAN_TAG_SIZE;
} else {
- return -1;
+ DPAA_PMD_ERR("enabling jumbo err conf max len=%d "
+ "supported is %d",
+ dev->data->dev_conf.rxmode.max_rx_pkt_len,
+ DPAA_MAX_RX_PKT_LEN);
}
}
+ if (rx_offloads & DEV_RX_OFFLOAD_JUMBO_FRAME) {
+ DPAA_PMD_DEBUG("enabling scatter mode");
+ fman_if_set_sg(dpaa_intf->fif, 1);
+ dev->data->scattered_rx = 1;
+ }
return 0;
}
@@ -300,7 +330,6 @@ static void dpaa_eth_dev_info(struct rte_eth_dev *dev,
dev_info->max_rx_queues = dpaa_intf->nb_rx_queues;
dev_info->max_tx_queues = dpaa_intf->nb_tx_queues;
- dev_info->min_rx_bufsize = DPAA_MIN_RX_BUF_SIZE;
dev_info->max_rx_pktlen = DPAA_MAX_RX_PKT_LEN;
dev_info->max_mac_addrs = DPAA_MAX_MAC_FILTER;
dev_info->max_hash_mac_addrs = 0;
@@ -514,6 +543,7 @@ int dpaa_eth_rx_queue_setup(struct rte_eth_dev *dev,
uint16_t queue_idx,
struct qm_mcc_initfq opts = {0};
u32 flags = 0;
int ret;
+ u32 buffsz = rte_pktmbuf_data_room_size(mp) - RTE_PKTMBUF_HEADROOM;
PMD_INIT_FUNC_TRACE();
@@ -527,6 +557,27 @@ int dpaa_eth_rx_queue_setup(struct rte_eth_dev *dev,
uint16_t queue_idx,
DPAA_PMD_INFO("Rx queue setup for queue index: %d fq_id (0x%x)",
queue_idx, rxq->fqid);
+ /* Max packet can fit in single buffer */
+ if (dev->data->dev_conf.rxmode.max_rx_pkt_len <= buffsz) {
+ ;
+ } else if (dev->data->dev_conf.rxmode.enable_scatter) {
+ if (dev->data->dev_conf.rxmode.max_rx_pkt_len >
+ buffsz * DPAA_SGT_MAX_ENTRIES) {
+ DPAA_PMD_ERR("max RxPkt size %d too big to fit "
+ "MaxSGlist %d",
+ dev->data->dev_conf.rxmode.max_rx_pkt_len,
+ buffsz * DPAA_SGT_MAX_ENTRIES);
+ rte_errno = EOVERFLOW;
+ return -rte_errno;
+ }
+ } else {
+ DPAA_PMD_WARN("The requested maximum Rx packet size (%u) is"
+ " larger than a single mbuf (%u) and scattered"
+ " mode has not been requested",
+ dev->data->dev_conf.rxmode.max_rx_pkt_len,
+ buffsz - RTE_PKTMBUF_HEADROOM);
+ }
+
if (!dpaa_intf->bp_info || dpaa_intf->bp_info->mp != mp) {
struct fman_if_ic_params icp;
uint32_t fd_offset;
@@ -553,10 +604,13 @@ int dpaa_eth_rx_queue_setup(struct rte_eth_dev *dev,
uint16_t queue_idx,
fman_if_set_bp(dpaa_intf->fif, mp->size,
dpaa_intf->bp_info->bpid, bp_size);
dpaa_intf->valid = 1;
- DPAA_PMD_INFO("if =%s - fd_offset = %d offset = %d",
- dpaa_intf->name, fd_offset,
- fman_if_get_fdoff(dpaa_intf->fif));
+ DPAA_PMD_DEBUG("if:%s fd_offset = %d offset = %d",
+ dpaa_intf->name, fd_offset,
+ fman_if_get_fdoff(dpaa_intf->fif));
}
+ DPAA_PMD_DEBUG("if:%s sg_on = %d, max_frm =%d", dpaa_intf->name,
+ fman_if_get_sg_enable(dpaa_intf->fif),
+ dev->data->dev_conf.rxmode.max_rx_pkt_len);
/* checking if push mode only, no error check for now */
if (dpaa_push_mode_max_queue > dpaa_push_queue_idx) {
dpaa_push_queue_idx++;
@@ -1304,6 +1358,9 @@ dpaa_dev_init(struct rte_eth_dev *eth_dev)
fman_if_reset_mcast_filter_table(fman_intf);
/* Reset interface statistics */
fman_if_stats_reset(fman_intf);
+ /* Disable SG by default */
+ fman_if_set_sg(fman_intf, 0);
+ fman_if_set_maxfrm(fman_intf, ETHER_MAX_LEN + VLAN_TAG_SIZE);
return 0;
diff --git a/drivers/net/dpaa/dpaa_ethdev.h b/drivers/net/dpaa/dpaa_ethdev.h
index c79b9f8..1e7a656 100644
--- a/drivers/net/dpaa/dpaa_ethdev.h
+++ b/drivers/net/dpaa/dpaa_ethdev.h
@@ -39,9 +39,10 @@
/* Alignment to use for cpu-local structs to avoid coherency problems. */
#define MAX_CACHELINE 64
-#define DPAA_MIN_RX_BUF_SIZE 512
#define DPAA_MAX_RX_PKT_LEN 10240
+#define DPAA_SGT_MAX_ENTRIES 16 /* maximum number of entries in SG Table */
+
/* RX queue tail drop threshold (CGR Based) in frame count */
#define CGR_RX_PERFQ_THRESH 256
diff --git a/drivers/net/dpaa/dpaa_rxtx.c b/drivers/net/dpaa/dpaa_rxtx.c
index 168b77e..6e96a80 100644
--- a/drivers/net/dpaa/dpaa_rxtx.c
+++ b/drivers/net/dpaa/dpaa_rxtx.c
@@ -306,8 +306,6 @@ dpaa_eth_sg_to_mbuf(const struct qm_fd *fd, uint32_t ifid)
int i = 0;
uint8_t fd_offset = fd->offset;
- DPAA_DP_LOG(DEBUG, "Received an SG frame");
-
vaddr = DPAA_MEMPOOL_PTOV(bp_info, qm_fd_addr(fd));
if (!vaddr) {
DPAA_PMD_ERR("unable to convert physical address");
@@ -349,6 +347,8 @@ dpaa_eth_sg_to_mbuf(const struct qm_fd *fd, uint32_t ifid)
}
prev_seg = cur_seg;
}
+ DPAA_DP_LOG(DEBUG, "Received an SG frame len =%d, num_sg =%d",
+ first_seg->pkt_len, first_seg->nb_segs);
dpaa_eth_packet_info(first_seg, vaddr);
rte_pktmbuf_free_seg(temp);
diff --git a/drivers/net/dpaa/dpaa_rxtx.h b/drivers/net/dpaa/dpaa_rxtx.h
index d3e6351..6de70a7 100644
--- a/drivers/net/dpaa/dpaa_rxtx.h
+++ b/drivers/net/dpaa/dpaa_rxtx.h
@@ -32,8 +32,6 @@
/* L4 Type field: TCP */
#define DPAA_L4_PARSE_RESULT_TCP 0x20
-#define DPAA_SGT_MAX_ENTRIES 16 /* maximum number of entries in SG Table */
-
#define DPAA_MAX_DEQUEUE_NUM_FRAMES 63
/** <Maximum number of frames to be dequeued in a single rx call*/
--
2.7.4
