]> git.baikalelectronics.ru Git - kernel.git/commitdiff
octeontx2-af: cn10k: Add RPM Rx/Tx stats support
authorHariprasad Kelam <hkelam@marvell.com>
Thu, 11 Feb 2021 15:58:33 +0000 (21:28 +0530)
committerDavid S. Miller <davem@davemloft.net>
Thu, 11 Feb 2021 22:55:04 +0000 (14:55 -0800)
RPM supports below list of counters as an extension to existing counters
 *  class based flow control pause frames
 *  vlan/jabber/fragmented packets
 *  fcs/alignment/oversized error packets

This patch adds support to display supported RPM counters via debugfs
and define new mbox rpm_stats to read all support counters.

Signed-off-by: Hariprasad Kelam <hkelam@marvell.com>
Signed-off-by: Geetha sowjanya <gakula@marvell.com>
Signed-off-by: Sunil Kovvuri Goutham <Sunil.Goutham@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/marvell/octeontx2/af/cgx.c
drivers/net/ethernet/marvell/octeontx2/af/cgx.h
drivers/net/ethernet/marvell/octeontx2/af/lmac_common.h
drivers/net/ethernet/marvell/octeontx2/af/mbox.h
drivers/net/ethernet/marvell/octeontx2/af/rpm.c
drivers/net/ethernet/marvell/octeontx2/af/rpm.h
drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c
drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c

index 88203a2635efc6c6ed141f1955616d0f55a721a4..0368d762bcff30a35b39053736553052bfc4c419 100644 (file)
@@ -331,10 +331,8 @@ void cgx_lmac_enadis_rx_pause_fwding(void *cgxd, int lmac_id, bool enable)
 
 int cgx_get_rx_stats(void *cgxd, int lmac_id, int idx, u64 *rx_stat)
 {
-       struct mac_ops *mac_ops;
        struct cgx *cgx = cgxd;
 
-       mac_ops = cgx->mac_ops;
        if (!is_lmac_valid(cgx, lmac_id))
                return -ENODEV;
        *rx_stat =  cgx_read(cgx, lmac_id, CGXX_CMRX_RX_STAT0 + (idx * 8));
@@ -343,10 +341,8 @@ int cgx_get_rx_stats(void *cgxd, int lmac_id, int idx, u64 *rx_stat)
 
 int cgx_get_tx_stats(void *cgxd, int lmac_id, int idx, u64 *tx_stat)
 {
-       struct mac_ops *mac_ops;
        struct cgx *cgx = cgxd;
 
-       mac_ops = cgx->mac_ops;
        if (!is_lmac_valid(cgx, lmac_id))
                return -ENODEV;
        *tx_stat = cgx_read(cgx, lmac_id, CGXX_CMRX_TX_STAT0 + (idx * 8));
@@ -1303,7 +1299,11 @@ static struct mac_ops    cgx_mac_ops    = {
        .int_ena_bit    =       FW_CGX_INT,
        .lmac_fwi       =       CGX_LMAC_FWI,
        .non_contiguous_serdes_lane = false,
+       .rx_stats_cnt   =       9,
+       .tx_stats_cnt   =       18,
        .get_nr_lmacs   =       cgx_get_nr_lmacs,
+       .mac_get_rx_stats  =    cgx_get_rx_stats,
+       .mac_get_tx_stats  =    cgx_get_tx_stats,
        .mac_enadis_rx_pause_fwding =   cgx_lmac_enadis_rx_pause_fwding,
        .mac_get_pause_frm_status =     cgx_lmac_get_pause_frm_status,
        .mac_enadis_pause_frm =         cgx_lmac_enadis_pause_frm,
@@ -1376,6 +1376,8 @@ static int cgx_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 
        cgx_populate_features(cgx);
 
+       mutex_init(&cgx->lock);
+
        err = cgx_lmac_init(cgx);
        if (err)
                goto err_release_lmac;
index 33ba235e14d06c5802f9c893718e441d16fddc85..12521262164af56681385d7058c615d164db32f4 100644 (file)
@@ -41,7 +41,7 @@
 #define FW_CGX_INT                     BIT_ULL(1)
 #define CGXX_CMRX_INT_ENA_W1S          0x058
 #define CGXX_CMRX_RX_ID_MAP            0x060
-#define CGXX_CMRX_RX_STAT0             (0x070 + mac_ops->csr_offset)
+#define CGXX_CMRX_RX_STAT0             0x070
 #define CGXX_CMRX_RX_LMACS             0x128
 #define CGXX_CMRX_RX_DMAC_CTL0         (0x1F8 + mac_ops->csr_offset)
 #define CGX_DMAC_CTL0_CAM_ENABLE       BIT_ULL(3)
@@ -52,7 +52,7 @@
 #define CGX_DMAC_CAM_ADDR_ENABLE       BIT_ULL(48)
 #define CGXX_CMRX_RX_DMAC_CAM1         0x400
 #define CGX_RX_DMAC_ADR_MASK           GENMASK_ULL(47, 0)
-#define CGXX_CMRX_TX_STAT0             (0x700 + mac_ops->csr_offset)
+#define CGXX_CMRX_TX_STAT0             0x700
 #define CGXX_SCRATCH0_REG              0x1050
 #define CGXX_SCRATCH1_REG              0x1058
 #define CGX_CONST                      0x2000
index b4eb337ccbddd3a3bd48fc4cbdac6daf92e3f5e2..fea2303937824d90681458916cd8bfb9981a5860 100644 (file)
@@ -63,15 +63,25 @@ struct mac_ops {
        u8                      lmac_fwi;
        u32                     fifo_len;
        bool                    non_contiguous_serdes_lane;
+       /* RPM & CGX differs in number of Receive/transmit stats */
+       u8                      rx_stats_cnt;
+       u8                      tx_stats_cnt;
        /* Incase of RPM get number of lmacs from RPMX_CMR_RX_LMACS[LMAC_EXIST]
         * number of setbits in lmac_exist tells number of lmacs
         */
        int                     (*get_nr_lmacs)(void *cgx);
 
+       /* Register Stats related functions */
+       int                     (*mac_get_rx_stats)(void *cgx, int lmac_id,
+                                                   int idx, u64 *rx_stat);
+       int                     (*mac_get_tx_stats)(void *cgx, int lmac_id,
+                                                   int idx, u64 *tx_stat);
+
        /* Enable LMAC Pause Frame Configuration */
        void                    (*mac_enadis_rx_pause_fwding)(void *cgxd,
                                                              int lmac_id,
                                                              bool enable);
+
        int                     (*mac_get_pause_frm_status)(void *cgxd,
                                                            int lmac_id,
                                                            u8 *tx_pause,
@@ -81,10 +91,10 @@ struct mac_ops {
                                                        int lmac_id,
                                                        u8 tx_pause,
                                                        u8 rx_pause);
+
        void                    (*mac_pause_frm_config)(void  *cgxd,
                                                        int lmac_id,
                                                        bool enable);
-
 };
 
 struct cgx {
@@ -99,6 +109,10 @@ struct cgx {
        u64                     hw_features;
        struct mac_ops          *mac_ops;
        unsigned long           lmac_bmap; /* bitmap of enabled lmacs */
+       /* Lock to serialize read/write of global csrs like
+        * RPMX_MTI_STAT_DATA_HI_CDC etc
+        */
+       struct mutex            lock;
 };
 
 typedef struct cgx rpm_t;
index af4057b204152acc52d0f6b11418f20ebda148e6..ea456099b33c7ce95f5941478198e49023dabbac 100644 (file)
@@ -161,6 +161,7 @@ M(CGX_SET_LINK_MODE,        0x214, cgx_set_link_mode, cgx_set_link_mode_req,\
                               cgx_set_link_mode_rsp)   \
 M(CGX_FEATURES_GET,    0x215, cgx_features_get, msg_req,               \
                               cgx_features_info_msg)                   \
+M(RPM_STATS,           0x216, rpm_stats, msg_req, rpm_stats_rsp)       \
  /* NPA mbox IDs (range 0x400 - 0x5FF) */                              \
 /* NPA mbox IDs (range 0x400 - 0x5FF) */                               \
 M(NPA_LF_ALLOC,                0x400, npa_lf_alloc,                            \
@@ -490,14 +491,22 @@ struct cgx_set_link_mode_rsp {
 #define RVU_LMAC_FEAT_FC               BIT_ULL(0) /* pause frames */
 #define RVU_LMAC_FEAT_PTP              BIT_ULL(1) /* precison time protocol */
 #define RVU_MAC_VERSION                        BIT_ULL(2)
-#define RVU_MAC_CGX                    0
-#define RVU_MAC_RPM                    1
+#define RVU_MAC_CGX                    BIT_ULL(3)
+#define RVU_MAC_RPM                    BIT_ULL(4)
 
 struct cgx_features_info_msg {
        struct mbox_msghdr hdr;
        u64    lmac_features;
 };
 
+struct rpm_stats_rsp {
+       struct mbox_msghdr hdr;
+#define RPM_RX_STATS_COUNT             43
+#define RPM_TX_STATS_COUNT             34
+       u64 rx_stats[RPM_RX_STATS_COUNT];
+       u64 tx_stats[RPM_TX_STATS_COUNT];
+};
+
 /* NPA mbox message formats */
 
 /* NPA mailbox error codes
index 8a4241abaa2a97ffd1e36337d83c70165e93359d..3870cd4366839bc1214e5325f401d87e3429f56d 100644 (file)
@@ -18,7 +18,11 @@ static struct mac_ops        rpm_mac_ops   = {
        .int_ena_bit    =       BIT_ULL(0),
        .lmac_fwi       =       RPM_LMAC_FWI,
        .non_contiguous_serdes_lane = true,
+       .rx_stats_cnt   =       43,
+       .tx_stats_cnt   =       34,
        .get_nr_lmacs   =       rpm_get_nr_lmacs,
+       .mac_get_rx_stats  =    rpm_get_rx_stats,
+       .mac_get_tx_stats  =    rpm_get_tx_stats,
        .mac_enadis_rx_pause_fwding =   rpm_lmac_enadis_rx_pause_fwding,
        .mac_get_pause_frm_status =     rpm_lmac_get_pause_frm_status,
        .mac_enadis_pause_frm =         rpm_lmac_enadis_pause_frm,
@@ -49,7 +53,7 @@ int rpm_get_nr_lmacs(void *rpmd)
 
 void rpm_lmac_enadis_rx_pause_fwding(void *rpmd, int lmac_id, bool enable)
 {
-       struct cgx *rpm = rpmd;
+       rpm_t *rpm = rpmd;
        u64 cfg;
 
        if (!rpm)
@@ -171,3 +175,54 @@ void rpm_lmac_pause_frm_config(void *rpmd, int lmac_id, bool enable)
                rpm_write(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG, cfg);
        }
 }
+
+int rpm_get_rx_stats(void *rpmd, int lmac_id, int idx, u64 *rx_stat)
+{
+       rpm_t *rpm = rpmd;
+       u64 val_lo, val_hi;
+
+       if (!rpm || lmac_id >= rpm->lmac_count)
+               return -ENODEV;
+
+       mutex_lock(&rpm->lock);
+
+       /* Update idx to point per lmac Rx statistics page */
+       idx += lmac_id * rpm->mac_ops->rx_stats_cnt;
+
+       /* Read lower 32 bits of counter */
+       val_lo = rpm_read(rpm, 0, RPMX_MTI_STAT_RX_STAT_PAGES_COUNTERX +
+                         (idx * 8));
+
+       /* upon read of lower 32 bits, higher 32 bits are written
+        * to RPMX_MTI_STAT_DATA_HI_CDC
+        */
+       val_hi = rpm_read(rpm, 0, RPMX_MTI_STAT_DATA_HI_CDC);
+
+       *rx_stat = (val_hi << 32 | val_lo);
+
+       mutex_unlock(&rpm->lock);
+       return 0;
+}
+
+int rpm_get_tx_stats(void *rpmd, int lmac_id, int idx, u64 *tx_stat)
+{
+       rpm_t *rpm = rpmd;
+       u64 val_lo, val_hi;
+
+       if (!rpm || lmac_id >= rpm->lmac_count)
+               return -ENODEV;
+
+       mutex_lock(&rpm->lock);
+
+       /* Update idx to point per lmac Tx statistics page */
+       idx += lmac_id * rpm->mac_ops->tx_stats_cnt;
+
+       val_lo = rpm_read(rpm, 0, RPMX_MTI_STAT_TX_STAT_PAGES_COUNTERX +
+                           (idx * 8));
+       val_hi = rpm_read(rpm, 0, RPMX_MTI_STAT_DATA_HI_CDC);
+
+       *tx_stat = (val_hi << 32 | val_lo);
+
+       mutex_unlock(&rpm->lock);
+       return 0;
+}
index 0e8b4560b3c39402009e243be5f42f96366fdf92..c939302308b5dfbe9d6a44d66ab861e12c32c711 100644 (file)
@@ -18,6 +18,7 @@
 #define RPMX_CMRX_SW_INT_W1S            0x188
 #define RPMX_CMRX_SW_INT_ENA_W1S        0x198
 #define RPMX_CMRX_LINK_CFG             0x1070
+#define RPMX_MTI_LPCSX_CONTROL(id)     (0x30000 | ((id) * 0x100))
 
 #define RPMX_CMRX_LINK_RANGE_MASK      GENMASK_ULL(19, 16)
 #define RPMX_CMRX_LINK_BASE_MASK       GENMASK_ULL(11, 0)
 #define RPMX_CMR_RX_OVR_BP             0x4120
 #define RPMX_CMR_RX_OVR_BP_EN(x)       BIT_ULL((x) + 8)
 #define RPMX_CMR_RX_OVR_BP_BP(x)       BIT_ULL((x) + 4)
+#define RPMX_MTI_STAT_RX_STAT_PAGES_COUNTERX 0x12000
+#define RPMX_MTI_STAT_TX_STAT_PAGES_COUNTERX 0x13000
+#define RPMX_MTI_STAT_DATA_HI_CDC            0x10038
+
 #define RPM_LMAC_FWI                   0xa
 
 /* Function Declarations */
+int rpm_get_nr_lmacs(void *rpmd);
 void rpm_lmac_enadis_rx_pause_fwding(void *rpmd, int lmac_id, bool enable);
 int rpm_lmac_get_pause_frm_status(void *cgxd, int lmac_id, u8 *tx_pause,
                                  u8 *rx_pause);
 void rpm_lmac_pause_frm_config(void *rpmd, int lmac_id, bool enable);
 int rpm_lmac_enadis_pause_frm(void *rpmd, int lmac_id, u8 tx_pause,
                              u8 rx_pause);
-int rpm_get_nr_lmacs(void *cgxd);
+int rpm_get_tx_stats(void *rpmd, int lmac_id, int idx, u64 *tx_stat);
+int rpm_get_rx_stats(void *rpmd, int lmac_id, int idx, u64 *rx_stat);
 #endif /* RPM_H */
index ca8d7be01264691e955b6480018f908b9f224d2a..0667ab3cfdae658387c3ab263226700886306182 100644 (file)
@@ -453,10 +453,11 @@ int rvu_mbox_handler_cgx_stop_rxtx(struct rvu *rvu, struct msg_req *req,
        return 0;
 }
 
-int rvu_mbox_handler_cgx_stats(struct rvu *rvu, struct msg_req *req,
-                              struct cgx_stats_rsp *rsp)
+static int rvu_lmac_get_stats(struct rvu *rvu, struct msg_req *req,
+                             void *rsp)
 {
        int pf = rvu_get_pf(req->hdr.pcifunc);
+       struct mac_ops *mac_ops;
        int stat = 0, err = 0;
        u64 tx_stat, rx_stat;
        u8 cgx_idx, lmac;
@@ -467,28 +468,47 @@ int rvu_mbox_handler_cgx_stats(struct rvu *rvu, struct msg_req *req,
 
        rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_idx, &lmac);
        cgxd = rvu_cgx_pdata(cgx_idx, rvu);
+       mac_ops = get_mac_ops(cgxd);
 
        /* Rx stats */
-       while (stat < CGX_RX_STATS_COUNT) {
-               err = cgx_get_rx_stats(cgxd, lmac, stat, &rx_stat);
+       while (stat < mac_ops->rx_stats_cnt) {
+               err = mac_ops->mac_get_rx_stats(cgxd, lmac, stat, &rx_stat);
                if (err)
                        return err;
-               rsp->rx_stats[stat] = rx_stat;
+               if (mac_ops->rx_stats_cnt == RPM_RX_STATS_COUNT)
+                       ((struct rpm_stats_rsp *)rsp)->rx_stats[stat] = rx_stat;
+               else
+                       ((struct cgx_stats_rsp *)rsp)->rx_stats[stat] = rx_stat;
                stat++;
        }
 
        /* Tx stats */
        stat = 0;
-       while (stat < CGX_TX_STATS_COUNT) {
-               err = cgx_get_tx_stats(cgxd, lmac, stat, &tx_stat);
+       while (stat < mac_ops->tx_stats_cnt) {
+               err = mac_ops->mac_get_tx_stats(cgxd, lmac, stat, &tx_stat);
                if (err)
                        return err;
-               rsp->tx_stats[stat] = tx_stat;
+               if (mac_ops->tx_stats_cnt == RPM_TX_STATS_COUNT)
+                       ((struct rpm_stats_rsp *)rsp)->tx_stats[stat] = tx_stat;
+               else
+                       ((struct cgx_stats_rsp *)rsp)->tx_stats[stat] = tx_stat;
                stat++;
        }
        return 0;
 }
 
+int rvu_mbox_handler_cgx_stats(struct rvu *rvu, struct msg_req *req,
+                              struct cgx_stats_rsp *rsp)
+{
+       return rvu_lmac_get_stats(rvu, req, (void *)rsp);
+}
+
+int rvu_mbox_handler_rpm_stats(struct rvu *rvu, struct msg_req *req,
+                              struct rpm_stats_rsp *rsp)
+{
+       return rvu_lmac_get_stats(rvu, req, (void *)rsp);
+}
+
 int rvu_mbox_handler_cgx_fec_stats(struct rvu *rvu,
                                   struct msg_req *req,
                                   struct cgx_fec_stats_rsp *rsp)
index 96ae6f79568ddec04689756e0875ee3f48be3867..dfeea587a27eaac2dc97d8915ffedfb8163ed879 100644 (file)
@@ -110,6 +110,89 @@ static char *cgx_tx_stats_fields[] = {
        [CGX_STAT17]    = "Control/PAUSE packets sent",
 };
 
+static char *rpm_rx_stats_fields[] = {
+       "Octets of received packets",
+       "Octets of received packets with out error",
+       "Received packets with alignment errors",
+       "Control/PAUSE packets received",
+       "Packets received with Frame too long Errors",
+       "Packets received with a1nrange length Errors",
+       "Received packets",
+       "Packets received with FrameCheckSequenceErrors",
+       "Packets received with VLAN header",
+       "Error packets",
+       "Packets recievd with unicast DMAC",
+       "Packets received with multicast DMAC",
+       "Packets received with broadcast DMAC",
+       "Dropped packets",
+       "Total frames received on interface",
+       "Packets received with an octet count < 64",
+       "Packets received with an octet count == 64",
+       "Packets received with an octet count of 65â\80\93127",
+       "Packets received with an octet count of 128-255",
+       "Packets received with an octet count of 256-511",
+       "Packets received with an octet count of 512-1023",
+       "Packets received with an octet count of 1024-1518",
+       "Packets received with an octet count of > 1518",
+       "Oversized Packets",
+       "Jabber Packets",
+       "Fragmented Packets",
+       "CBFC(class based flow control) pause frames received for class 0",
+       "CBFC pause frames received for class 1",
+       "CBFC pause frames received for class 2",
+       "CBFC pause frames received for class 3",
+       "CBFC pause frames received for class 4",
+       "CBFC pause frames received for class 5",
+       "CBFC pause frames received for class 6",
+       "CBFC pause frames received for class 7",
+       "CBFC pause frames received for class 8",
+       "CBFC pause frames received for class 9",
+       "CBFC pause frames received for class 10",
+       "CBFC pause frames received for class 11",
+       "CBFC pause frames received for class 12",
+       "CBFC pause frames received for class 13",
+       "CBFC pause frames received for class 14",
+       "CBFC pause frames received for class 15",
+       "MAC control packets received",
+};
+
+static char *rpm_tx_stats_fields[] = {
+       "Total octets sent on the interface",
+       "Total octets transmitted OK",
+       "Control/Pause frames sent",
+       "Total frames transmitted OK",
+       "Total frames sent with VLAN header",
+       "Error Packets",
+       "Packets sent to unicast DMAC",
+       "Packets sent to the multicast DMAC",
+       "Packets sent to a broadcast DMAC",
+       "Packets sent with an octet count == 64",
+       "Packets sent with an octet count of 65â\80\93127",
+       "Packets sent with an octet count of 128-255",
+       "Packets sent with an octet count of 256-511",
+       "Packets sent with an octet count of 512-1023",
+       "Packets sent with an octet count of 1024-1518",
+       "Packets sent with an octet count of > 1518",
+       "CBFC(class based flow control) pause frames transmitted for class 0",
+       "CBFC pause frames transmitted for class 1",
+       "CBFC pause frames transmitted for class 2",
+       "CBFC pause frames transmitted for class 3",
+       "CBFC pause frames transmitted for class 4",
+       "CBFC pause frames transmitted for class 5",
+       "CBFC pause frames transmitted for class 6",
+       "CBFC pause frames transmitted for class 7",
+       "CBFC pause frames transmitted for class 8",
+       "CBFC pause frames transmitted for class 9",
+       "CBFC pause frames transmitted for class 10",
+       "CBFC pause frames transmitted for class 11",
+       "CBFC pause frames transmitted for class 12",
+       "CBFC pause frames transmitted for class 13",
+       "CBFC pause frames transmitted for class 14",
+       "CBFC pause frames transmitted for class 15",
+       "MAC control packets sent",
+       "Total frames sent on the interface"
+};
+
 enum cpt_eng_type {
        CPT_AE_TYPE = 1,
        CPT_SE_TYPE = 2,
@@ -1676,23 +1759,34 @@ static int cgx_print_stats(struct seq_file *s, int lmac_id)
 
        /* Rx stats */
        seq_printf(s, "\n=======%s RX_STATS======\n\n", mac_ops->name);
-       while (stat < CGX_RX_STATS_COUNT) {
-               err = cgx_get_rx_stats(cgxd, lmac_id, stat, &rx_stat);
+       while (stat < mac_ops->rx_stats_cnt) {
+               err = mac_ops->mac_get_rx_stats(cgxd, lmac_id, stat, &rx_stat);
                if (err)
                        return err;
-               seq_printf(s, "%s: %llu\n", cgx_rx_stats_fields[stat], rx_stat);
+               if (is_rvu_otx2(rvu))
+                       seq_printf(s, "%s: %llu\n", cgx_rx_stats_fields[stat],
+                                  rx_stat);
+               else
+                       seq_printf(s, "%s: %llu\n", rpm_rx_stats_fields[stat],
+                                  rx_stat);
                stat++;
        }
 
        /* Tx stats */
        stat = 0;
        seq_printf(s, "\n=======%s TX_STATS======\n\n", mac_ops->name);
-       while (stat < CGX_TX_STATS_COUNT) {
-               err = cgx_get_tx_stats(cgxd, lmac_id, stat, &tx_stat);
+       while (stat < mac_ops->tx_stats_cnt) {
+               err = mac_ops->mac_get_tx_stats(cgxd, lmac_id, stat, &tx_stat);
                if (err)
                        return err;
-               seq_printf(s, "%s: %llu\n", cgx_tx_stats_fields[stat], tx_stat);
-               stat++;
+
+       if (is_rvu_otx2(rvu))
+               seq_printf(s, "%s: %llu\n", cgx_tx_stats_fields[stat],
+                          tx_stat);
+       else
+               seq_printf(s, "%s: %llu\n", rpm_tx_stats_fields[stat],
+                          tx_stat);
+       stat++;
        }
 
        return err;