@@ -38,6 +38,13 @@ TX MAC Interface
- ``ptp_good_ts``: packets successfully routed to MAC with PTP request bit set
- ``ptp_bad_ts``: packets destined for MAC with PTP request bit set but aborted because of some error (e.g., DMA read error)
+TX Extension (TEI) Interface (TTI)
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+ - ``tti_cm_drop``: control messages dropped at the TX Extension (TEI) Interface because of credit starvation
+ - ``tti_frame_drop``: packets dropped at the TX Extension (TEI) Interface because of credit starvation
+ - ``tti_tbi_drop``: packets dropped at the TX BMC Interface (TBI) because of credit starvation
+
RXB (RX Buffer) Enqueue
~~~~~~~~~~~~~~~~~~~~~~~
@@ -397,6 +397,15 @@ enum {
#define FBNIC_TCE_DROP_CTRL_TTI_FRM_DROP_EN CSR_BIT(1)
#define FBNIC_TCE_DROP_CTRL_TTI_TBI_DROP_EN CSR_BIT(2)
+#define FBNIC_TCE_TTI_CM_DROP_PKTS 0x0403e /* 0x100f8 */
+#define FBNIC_TCE_TTI_CM_DROP_BYTE_L 0x0403f /* 0x100fc */
+#define FBNIC_TCE_TTI_CM_DROP_BYTE_H 0x04040 /* 0x10100 */
+#define FBNIC_TCE_TTI_FRAME_DROP_PKTS 0x04041 /* 0x10104 */
+#define FBNIC_TCE_TTI_FRAME_DROP_BYTE_L 0x04042 /* 0x10108 */
+#define FBNIC_TCE_TTI_FRAME_DROP_BYTE_H 0x04043 /* 0x1010c */
+#define FBNIC_TCE_TBI_DROP_PKTS 0x04044 /* 0x10110 */
+#define FBNIC_TCE_TBI_DROP_BYTE_L 0x04045 /* 0x10114 */
+
#define FBNIC_TCE_TCAM_IDX2DEST_MAP 0x0404A /* 0x10128 */
#define FBNIC_TCE_TCAM_IDX2DEST_MAP_DEST_ID_0 CSR_GENMASK(3, 0)
enum {
@@ -27,6 +27,14 @@ struct fbnic_stat {
FBNIC_STAT_FIELDS(fbnic_hw_stats, name, stat)
static const struct fbnic_stat fbnic_gstrings_hw_stats[] = {
+ /* TTI */
+ FBNIC_HW_STAT("tti_cm_drop_frames", tti.cm_drop.frames),
+ FBNIC_HW_STAT("tti_cm_drop_bytes", tti.cm_drop.bytes),
+ FBNIC_HW_STAT("tti_frame_drop_frames", tti.frame_drop.frames),
+ FBNIC_HW_STAT("tti_frame_drop_bytes", tti.frame_drop.bytes),
+ FBNIC_HW_STAT("tti_tbi_drop_frames", tti.tbi_drop.frames),
+ FBNIC_HW_STAT("tti_tbi_drop_bytes", tti.tbi_drop.bytes),
+
/* TMI */
FBNIC_HW_STAT("ptp_illegal_req", tmi.ptp_illegal_req),
FBNIC_HW_STAT("ptp_good_ts", tmi.ptp_good_ts),
@@ -101,6 +101,69 @@ static void fbnic_get_tmi_stats(struct fbnic_dev *fbd,
fbnic_hw_stat_rd64(fbd, FBNIC_TMI_DROP_BYTE_L, 1, &tmi->drop.bytes);
}
+static void fbnic_reset_tti_stats(struct fbnic_dev *fbd,
+ struct fbnic_tti_stats *tti)
+{
+ fbnic_hw_stat_rst32(fbd,
+ FBNIC_TCE_TTI_CM_DROP_PKTS,
+ &tti->cm_drop.frames);
+ fbnic_hw_stat_rst64(fbd,
+ FBNIC_TCE_TTI_CM_DROP_BYTE_L,
+ 1,
+ &tti->cm_drop.bytes);
+
+ fbnic_hw_stat_rst32(fbd,
+ FBNIC_TCE_TTI_FRAME_DROP_PKTS,
+ &tti->frame_drop.frames);
+ fbnic_hw_stat_rst64(fbd,
+ FBNIC_TCE_TTI_FRAME_DROP_BYTE_L,
+ 1,
+ &tti->frame_drop.bytes);
+
+ fbnic_hw_stat_rst32(fbd,
+ FBNIC_TCE_TBI_DROP_PKTS,
+ &tti->tbi_drop.frames);
+ fbnic_hw_stat_rst64(fbd,
+ FBNIC_TCE_TBI_DROP_BYTE_L,
+ 1,
+ &tti->tbi_drop.bytes);
+}
+
+static void fbnic_get_tti_stats32(struct fbnic_dev *fbd,
+ struct fbnic_tti_stats *tti)
+{
+ fbnic_hw_stat_rd32(fbd,
+ FBNIC_TCE_TTI_CM_DROP_PKTS,
+ &tti->cm_drop.frames);
+
+ fbnic_hw_stat_rd32(fbd,
+ FBNIC_TCE_TTI_FRAME_DROP_PKTS,
+ &tti->frame_drop.frames);
+
+ fbnic_hw_stat_rd32(fbd,
+ FBNIC_TCE_TBI_DROP_PKTS,
+ &tti->tbi_drop.frames);
+}
+
+static void fbnic_get_tti_stats(struct fbnic_dev *fbd,
+ struct fbnic_tti_stats *tti)
+{
+ fbnic_hw_stat_rd64(fbd,
+ FBNIC_TCE_TTI_CM_DROP_BYTE_L,
+ 1,
+ &tti->cm_drop.bytes);
+
+ fbnic_hw_stat_rd64(fbd,
+ FBNIC_TCE_TTI_FRAME_DROP_BYTE_L,
+ 1,
+ &tti->frame_drop.bytes);
+
+ fbnic_hw_stat_rd64(fbd,
+ FBNIC_TCE_TBI_DROP_BYTE_L,
+ 1,
+ &tti->tbi_drop.bytes);
+}
+
static void fbnic_reset_rpc_stats(struct fbnic_dev *fbd,
struct fbnic_rpc_stats *rpc)
{
@@ -451,6 +514,7 @@ void fbnic_reset_hw_stats(struct fbnic_dev *fbd)
{
spin_lock(&fbd->hw_stats_lock);
fbnic_reset_tmi_stats(fbd, &fbd->hw_stats.tmi);
+ fbnic_reset_tti_stats(fbd, &fbd->hw_stats.tti);
fbnic_reset_rpc_stats(fbd, &fbd->hw_stats.rpc);
fbnic_reset_rxb_stats(fbd, &fbd->hw_stats.rxb);
fbnic_reset_hw_rxq_stats(fbd, fbd->hw_stats.hw_q);
@@ -461,6 +525,7 @@ void fbnic_reset_hw_stats(struct fbnic_dev *fbd)
static void __fbnic_get_hw_stats32(struct fbnic_dev *fbd)
{
fbnic_get_tmi_stats32(fbd, &fbd->hw_stats.tmi);
+ fbnic_get_tti_stats32(fbd, &fbd->hw_stats.tti);
fbnic_get_rpc_stats32(fbd, &fbd->hw_stats.rpc);
fbnic_get_rxb_stats32(fbd, &fbd->hw_stats.rxb);
fbnic_get_hw_rxq_stats32(fbd, fbd->hw_stats.hw_q);
@@ -479,6 +544,7 @@ void fbnic_get_hw_stats(struct fbnic_dev *fbd)
__fbnic_get_hw_stats32(fbd);
fbnic_get_tmi_stats(fbd, &fbd->hw_stats.tmi);
+ fbnic_get_tti_stats(fbd, &fbd->hw_stats.tti);
fbnic_get_rxb_stats(fbd, &fbd->hw_stats.rxb);
fbnic_get_pcie_stats_asic64(fbd, &fbd->hw_stats.pcie);
spin_unlock(&fbd->hw_stats_lock);
@@ -47,6 +47,10 @@ struct fbnic_tmi_stats {
struct fbnic_stat_counter ptp_illegal_req, ptp_good_ts, ptp_bad_ts;
};
+struct fbnic_tti_stats {
+ struct fbnic_hw_stat cm_drop, frame_drop, tbi_drop;
+};
+
struct fbnic_rpc_stats {
struct fbnic_stat_counter unkn_etype, unkn_ext_hdr;
struct fbnic_stat_counter ipv4_frag, ipv6_frag, ipv4_esp, ipv6_esp;
@@ -94,6 +98,7 @@ struct fbnic_pcie_stats {
struct fbnic_hw_stats {
struct fbnic_mac_stats mac;
struct fbnic_tmi_stats tmi;
+ struct fbnic_tti_stats tti;
struct fbnic_rpc_stats rpc;
struct fbnic_rxb_stats rxb;
struct fbnic_hw_q_stats hw_q[FBNIC_MAX_QUEUES];
@@ -424,7 +424,10 @@ static void fbnic_get_stats64(struct net_device *dev,
stats64->tx_dropped = tx_dropped;
/* Record drops from Tx HW Datapath */
- tx_dropped += fbd->hw_stats.tmi.drop.frames.value;
+ tx_dropped += fbd->hw_stats.tmi.drop.frames.value +
+ fbd->hw_stats.tti.frame_drop.frames.value +
+ fbd->hw_stats.tti.tbi_drop.frames.value +
+ fbd->hw_stats.tmi.drop.frames.value;
for (i = 0; i < fbn->num_tx_queues; i++) {
struct fbnic_ring *txr = fbn->tx[i];