[dpdk-dev] [PATCH 2/3] ixgbe: refactor xstats queue handling

2015-11-06 Thread Harry van Haaren
This patch refactors the queue handling. Generic queue stats are
handled by rte_eth_xstats_get() and the ixgbe_xstats_get() exposes
only the extra stats.

Signed-off-by: Harry van Haaren 
---
 drivers/net/ixgbe/ixgbe_ethdev.c | 132 ---
 1 file changed, 53 insertions(+), 79 deletions(-)

diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c
index 0b0bbcf..19ddb52 100644
--- a/drivers/net/ixgbe/ixgbe_ethdev.c
+++ b/drivers/net/ixgbe/ixgbe_ethdev.c
@@ -613,11 +613,25 @@ static const struct rte_ixgbe_xstats_name_off 
rte_ixgbe_stats_strings[] = {
   sizeof(rte_ixgbe_stats_strings[0]))

 /* Per-queue statistics */
-#define IXBGE_NB_8_PER_Q_STATS (8 * 7)
-#define IXBGE_NB_16_PER_Q_STATS (16 * 5)
-#define IXGBE_NB_Q_STATS (IXBGE_NB_8_PER_Q_STATS + IXBGE_NB_16_PER_Q_STATS)
+static const struct rte_ixgbe_xstats_name_off rte_ixgbe_rxq_strings[] = {
+   {"mbuf_allocation_errors", offsetof(struct ixgbe_hw_stats, rnbc)},
+   {"dropped", offsetof(struct ixgbe_hw_stats, mpc)},
+   {"xon_packets", offsetof(struct ixgbe_hw_stats, pxonrxc)},
+   {"xoff_packets", offsetof(struct ixgbe_hw_stats, pxoffrxc)},
+};
+
+#define IXGBE_NB_RXQ_PRIO_STATS (sizeof(rte_ixgbe_rxq_strings) / \
+  sizeof(rte_ixgbe_rxq_strings[0]))
+
+static const struct rte_ixgbe_xstats_name_off rte_ixgbe_txq_strings[] = {
+   {"xon_packets", offsetof(struct ixgbe_hw_stats, pxontxc)},
+   {"xoff_packets", offsetof(struct ixgbe_hw_stats, pxofftxc)},
+   {"xon_to_xoff_packets", offsetof(struct ixgbe_hw_stats,
+   pxon2offc)},
+};

-#define IXGBE_NB_XSTATS (IXGBE_NB_HW_STATS + IXGBE_NB_Q_STATS)
+#define IXGBE_NB_TXQ_PRIO_STATS (sizeof(rte_ixgbe_txq_strings) / \
+  sizeof(rte_ixgbe_txq_strings[0]))

 static const struct rte_ixgbe_xstats_name_off rte_ixgbevf_stats_strings[] = {
{"rx_multicast_packets", offsetof(struct ixgbevf_hw_stats, vfmprc)},
@@ -2513,6 +2527,13 @@ ixgbe_dev_stats_reset(struct rte_eth_dev *dev)
memset(stats, 0, sizeof(*stats));
 }

+/* This function calculates the number of xstats based on the current config */
+static unsigned
+ixgbe_xstats_calc_num(void) {
+   return IXGBE_NB_HW_STATS + (IXGBE_NB_RXQ_PRIO_STATS * 8) +
+   (IXGBE_NB_TXQ_PRIO_STATS * 8);
+}
+
 static int
 ixgbe_dev_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstats *xstats,
 unsigned n)
@@ -2522,7 +2543,9 @@ ixgbe_dev_xstats_get(struct rte_eth_dev *dev, struct 
rte_eth_xstats *xstats,
struct ixgbe_hw_stats *hw_stats =
IXGBE_DEV_PRIVATE_TO_STATS(dev->data->dev_private);
uint64_t total_missed_rx, total_qbrc, total_qprc, total_qprdc;
-   unsigned i, count = IXGBE_NB_XSTATS;
+   unsigned i, stat, count = 0;
+
+   count = ixgbe_xstats_calc_num();

if (n < count)
return count;
@@ -2551,81 +2574,30 @@ ixgbe_dev_xstats_get(struct rte_eth_dev *dev, struct 
rte_eth_xstats *xstats,
count++;
}

-   /* Per-Q stats, with 8 queues available */
-   for (i = 0; i < 8; i++) {
-   snprintf(xstats[count].name, sizeof(xstats[count].name),
-"rx_q%u_mbuf_allocation_errors", i);
-   xstats[count].value = *(uint64_t *)(((char *)hw_stats) +
-   offsetof(struct ixgbe_hw_stats, rnbc[i]));
-   count++;
-
-   snprintf(xstats[count].name, sizeof(xstats[count].name),
-"rx_q%u_missed_packets", i);
-   xstats[count].value = *(uint64_t *)(((char *)hw_stats) +
-   offsetof(struct ixgbe_hw_stats, mpc[i]));
-   count++;
-
-   snprintf(xstats[count].name, sizeof(xstats[count].name),
-"rx_q%u_xon_priority_packets", i);
-   xstats[count].value = *(uint64_t *)(((char *)hw_stats) +
-   offsetof(struct ixgbe_hw_stats, pxonrxc[i]));
-   count++;
-
-   snprintf(xstats[count].name, sizeof(xstats[count].name),
-"tx_q%u_xon_priority_packets", i);
-   xstats[count].value = *(uint64_t *)(((char *)hw_stats) +
-   offsetof(struct ixgbe_hw_stats, pxontxc[i]));
-   count++;
-
-   snprintf(xstats[count].name, sizeof(xstats[count].name),
-"rx_q%u_xoff_priority_packets", i);
-   xstats[count].value = *(uint64_t *)(((char *)hw_stats) +
-   offsetof(struct ixgbe_hw_stats, pxoffrxc[i]));
-   count++;
-
-   snprintf(xstats[count].name, sizeof(xstats[count].name),
-"tx_q%u_xoff_priority_packets", i);
-   xstats[count].value = *(uint64_t *)(((char *)hw_stats) +
-   offsetof(str

[dpdk-dev] [PATCH 2/3] ixgbe: refactor xstats queue handling

2015-11-08 Thread Tahhan, Maryam
> From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Harry van Haaren
> Sent: Friday, November 6, 2015 2:13 PM
> To: dev at dpdk.org
> Subject: [dpdk-dev] [PATCH 2/3] ixgbe: refactor xstats queue handling
> 
> This patch refactors the queue handling. Generic queue stats are handled by
> rte_eth_xstats_get() and the ixgbe_xstats_get() exposes only the extra stats.
> 
> Signed-off-by: Harry van Haaren 
> ---
Acked-by: Maryam Tahhan