1 /*
   2  * CDDL HEADER START
   3  *
   4  * Copyright(c) 2007-2009 Intel Corporation. All rights reserved.
   5  * The contents of this file are subject to the terms of the
   6  * Common Development and Distribution License (the "License").
   7  * You may not use this file except in compliance with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 
  23 /*
  24  * Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
  25  * Use is subject to license terms.
  26  */
  27 /*
  28  * Copyright 2014 Pluribus Networks Inc.
  29  */
  30 
  31 #include "igb_sw.h"
  32 
  33 /*
  34  * Update driver private statistics.
  35  */
  36 static int
  37 igb_update_stats(kstat_t *ks, int rw)
  38 {
  39         igb_t *igb;
  40         struct e1000_hw *hw;
  41         igb_stat_t *igb_ks;
  42         uint32_t val_low, val_high;
  43 #ifdef IGB_DEBUG
  44         int i;
  45 #endif
  46 
  47         if (rw == KSTAT_WRITE)
  48                 return (EACCES);
  49 
  50         igb = (igb_t *)ks->ks_private;
  51         igb_ks = (igb_stat_t *)ks->ks_data;
  52         hw = &igb->hw;
  53 
  54         mutex_enter(&igb->gen_lock);
  55 
  56         /*
  57          * Basic information.
  58          */
  59         igb_ks->reset_count.value.ui64 = igb->reset_count;
  60         igb_ks->dout_sync.value.ui64 = igb->dout_sync;
  61 
  62 #ifdef IGB_DEBUG
  63         igb_ks->rx_frame_error.value.ui64 = 0;
  64         igb_ks->rx_cksum_error.value.ui64 = 0;
  65         igb_ks->rx_exceed_pkt.value.ui64 = 0;
  66         for (i = 0; i < igb->num_rx_rings; i++) {
  67                 igb_ks->rx_frame_error.value.ui64 +=
  68                     igb->rx_rings[i].stat_frame_error;
  69                 igb_ks->rx_cksum_error.value.ui64 +=
  70                     igb->rx_rings[i].stat_cksum_error;
  71                 igb_ks->rx_exceed_pkt.value.ui64 +=
  72                     igb->rx_rings[i].stat_exceed_pkt;
  73         }
  74 
  75         igb_ks->tx_overload.value.ui64 = 0;
  76         igb_ks->tx_fail_no_tbd.value.ui64 = 0;
  77         igb_ks->tx_fail_no_tcb.value.ui64 = 0;
  78         igb_ks->tx_fail_dma_bind.value.ui64 = 0;
  79         igb_ks->tx_reschedule.value.ui64 = 0;
  80         for (i = 0; i < igb->num_tx_rings; i++) {
  81                 igb_ks->tx_overload.value.ui64 +=
  82                     igb->tx_rings[i].stat_overload;
  83                 igb_ks->tx_fail_no_tbd.value.ui64 +=
  84                     igb->tx_rings[i].stat_fail_no_tbd;
  85                 igb_ks->tx_fail_no_tcb.value.ui64 +=
  86                     igb->tx_rings[i].stat_fail_no_tcb;
  87                 igb_ks->tx_fail_dma_bind.value.ui64 +=
  88                     igb->tx_rings[i].stat_fail_dma_bind;
  89                 igb_ks->tx_reschedule.value.ui64 +=
  90                     igb->tx_rings[i].stat_reschedule;
  91         }
  92 
  93         /*
  94          * Hardware calculated statistics.
  95          */
  96         igb_ks->gprc.value.ul += E1000_READ_REG(hw, E1000_GPRC);
  97         igb_ks->gptc.value.ul += E1000_READ_REG(hw, E1000_GPTC);
  98         igb_ks->prc64.value.ul += E1000_READ_REG(hw, E1000_PRC64);
  99         igb_ks->prc127.value.ul += E1000_READ_REG(hw, E1000_PRC127);
 100         igb_ks->prc255.value.ul += E1000_READ_REG(hw, E1000_PRC255);
 101         igb_ks->prc511.value.ul += E1000_READ_REG(hw, E1000_PRC511);
 102         igb_ks->prc1023.value.ul += E1000_READ_REG(hw, E1000_PRC1023);
 103         igb_ks->prc1522.value.ul += E1000_READ_REG(hw, E1000_PRC1522);
 104         igb_ks->ptc64.value.ul += E1000_READ_REG(hw, E1000_PTC64);
 105         igb_ks->ptc127.value.ul += E1000_READ_REG(hw, E1000_PTC127);
 106         igb_ks->ptc255.value.ul += E1000_READ_REG(hw, E1000_PTC255);
 107         igb_ks->ptc511.value.ul += E1000_READ_REG(hw, E1000_PTC511);
 108         igb_ks->ptc1023.value.ul += E1000_READ_REG(hw, E1000_PTC1023);
 109         igb_ks->ptc1522.value.ul += E1000_READ_REG(hw, E1000_PTC1522);
 110 
 111         /*
 112          * The 64-bit register will reset whenever the upper
 113          * 32 bits are read. So we need to read the lower
 114          * 32 bits first, then read the upper 32 bits.
 115          */
 116         val_low = E1000_READ_REG(hw, E1000_GORCL);
 117         val_high = E1000_READ_REG(hw, E1000_GORCH);
 118         igb_ks->gor.value.ui64 += (uint64_t)val_high << 32 | (uint64_t)val_low;
 119 
 120         val_low = E1000_READ_REG(hw, E1000_GOTCL);
 121         val_high = E1000_READ_REG(hw, E1000_GOTCH);
 122         igb_ks->got.value.ui64 += (uint64_t)val_high << 32 | (uint64_t)val_low;
 123 #endif
 124         igb_ks->symerrs.value.ui64 += E1000_READ_REG(hw, E1000_SYMERRS);
 125         igb_ks->mpc.value.ui64 += E1000_READ_REG(hw, E1000_MPC);
 126         igb_ks->rlec.value.ui64 += E1000_READ_REG(hw, E1000_RLEC);
 127         igb_ks->fcruc.value.ui64 += E1000_READ_REG(hw, E1000_FCRUC);
 128         igb_ks->rfc.value.ul += E1000_READ_REG(hw, E1000_RFC);
 129         igb_ks->tncrs.value.ul += E1000_READ_REG(hw, E1000_TNCRS);
 130         igb_ks->tsctc.value.ul += E1000_READ_REG(hw, E1000_TSCTC);
 131         igb_ks->tsctfc.value.ul += E1000_READ_REG(hw, E1000_TSCTFC);
 132         igb_ks->xonrxc.value.ui64 += E1000_READ_REG(hw, E1000_XONRXC);
 133         igb_ks->xontxc.value.ui64 += E1000_READ_REG(hw, E1000_XONTXC);
 134         igb_ks->xoffrxc.value.ui64 += E1000_READ_REG(hw, E1000_XOFFRXC);
 135         igb_ks->xofftxc.value.ui64 += E1000_READ_REG(hw, E1000_XOFFTXC);
 136 
 137         mutex_exit(&igb->gen_lock);
 138 
 139         if (igb_check_acc_handle(igb->osdep.reg_handle) != DDI_FM_OK) {
 140                 ddi_fm_service_impact(igb->dip, DDI_SERVICE_DEGRADED);
 141                 return (EIO);
 142         }
 143 
 144         return (0);
 145 }
 146 
 147 /*
 148  * Create and initialize the driver private statistics.
 149  */
 150 int
 151 igb_init_stats(igb_t *igb)
 152 {
 153         kstat_t *ks;
 154         igb_stat_t *igb_ks;
 155 
 156         /*
 157          * Create and init kstat
 158          */
 159         ks = kstat_create(MODULE_NAME, ddi_get_instance(igb->dip),
 160             "statistics", "net", KSTAT_TYPE_NAMED,
 161             sizeof (igb_stat_t) / sizeof (kstat_named_t), 0);
 162 
 163         if (ks == NULL) {
 164                 igb_error(igb,
 165                     "Could not create kernel statistics");
 166                 return (IGB_FAILURE);
 167         }
 168 
 169         igb->igb_ks = ks;
 170 
 171         igb_ks = (igb_stat_t *)ks->ks_data;
 172 
 173         /*
 174          * Initialize all the statistics.
 175          */
 176         kstat_named_init(&igb_ks->reset_count, "reset_count",
 177             KSTAT_DATA_UINT64);
 178         kstat_named_init(&igb_ks->dout_sync, "DMA_out_sync",
 179             KSTAT_DATA_UINT64);
 180 
 181 #ifdef IGB_DEBUG
 182         kstat_named_init(&igb_ks->rx_frame_error, "rx_frame_error",
 183             KSTAT_DATA_UINT64);
 184         kstat_named_init(&igb_ks->rx_cksum_error, "rx_cksum_error",
 185             KSTAT_DATA_UINT64);
 186         kstat_named_init(&igb_ks->rx_exceed_pkt, "rx_exceed_pkt",
 187             KSTAT_DATA_UINT64);
 188         kstat_named_init(&igb_ks->tx_overload, "tx_overload",
 189             KSTAT_DATA_UINT64);
 190         kstat_named_init(&igb_ks->tx_fail_no_tbd, "tx_fail_no_tbd",
 191             KSTAT_DATA_UINT64);
 192         kstat_named_init(&igb_ks->tx_fail_no_tcb, "tx_fail_no_tcb",
 193             KSTAT_DATA_UINT64);
 194         kstat_named_init(&igb_ks->tx_fail_dma_bind, "tx_fail_dma_bind",
 195             KSTAT_DATA_UINT64);
 196         kstat_named_init(&igb_ks->tx_reschedule, "tx_reschedule",
 197             KSTAT_DATA_UINT64);
 198 
 199         kstat_named_init(&igb_ks->gprc, "good_pkts_recvd",
 200             KSTAT_DATA_UINT64);
 201         kstat_named_init(&igb_ks->gptc, "good_pkts_xmitd",
 202             KSTAT_DATA_UINT64);
 203         kstat_named_init(&igb_ks->gor, "good_octets_recvd",
 204             KSTAT_DATA_UINT64);
 205         kstat_named_init(&igb_ks->got, "good_octets_xmitd",
 206             KSTAT_DATA_UINT64);
 207         kstat_named_init(&igb_ks->prc64, "pkts_recvd_(  64b)",
 208             KSTAT_DATA_UINT64);
 209         kstat_named_init(&igb_ks->prc127, "pkts_recvd_(  65- 127b)",
 210             KSTAT_DATA_UINT64);
 211         kstat_named_init(&igb_ks->prc255, "pkts_recvd_( 127- 255b)",
 212             KSTAT_DATA_UINT64);
 213         kstat_named_init(&igb_ks->prc511, "pkts_recvd_( 256- 511b)",
 214             KSTAT_DATA_UINT64);
 215         kstat_named_init(&igb_ks->prc1023, "pkts_recvd_( 511-1023b)",
 216             KSTAT_DATA_UINT64);
 217         kstat_named_init(&igb_ks->prc1522, "pkts_recvd_(1024-1522b)",
 218             KSTAT_DATA_UINT64);
 219         kstat_named_init(&igb_ks->ptc64, "pkts_xmitd_(  64b)",
 220             KSTAT_DATA_UINT64);
 221         kstat_named_init(&igb_ks->ptc127, "pkts_xmitd_(  65- 127b)",
 222             KSTAT_DATA_UINT64);
 223         kstat_named_init(&igb_ks->ptc255, "pkts_xmitd_( 128- 255b)",
 224             KSTAT_DATA_UINT64);
 225         kstat_named_init(&igb_ks->ptc511, "pkts_xmitd_( 255- 511b)",
 226             KSTAT_DATA_UINT64);
 227         kstat_named_init(&igb_ks->ptc1023, "pkts_xmitd_( 512-1023b)",
 228             KSTAT_DATA_UINT64);
 229         kstat_named_init(&igb_ks->ptc1522, "pkts_xmitd_(1024-1522b)",
 230             KSTAT_DATA_UINT64);
 231 #endif
 232 
 233         kstat_named_init(&igb_ks->symerrs, "recv_symbol_errors",
 234             KSTAT_DATA_UINT64);
 235         kstat_named_init(&igb_ks->mpc, "recv_missed_packets",
 236             KSTAT_DATA_UINT64);
 237         kstat_named_init(&igb_ks->rlec, "recv_length_errors",
 238             KSTAT_DATA_UINT64);
 239         kstat_named_init(&igb_ks->fcruc, "recv_unsupport_FC_pkts",
 240             KSTAT_DATA_UINT64);
 241         kstat_named_init(&igb_ks->rfc, "recv_frag",
 242             KSTAT_DATA_UINT64);
 243         kstat_named_init(&igb_ks->tncrs, "xmit_with_no_CRS",
 244             KSTAT_DATA_UINT64);
 245         kstat_named_init(&igb_ks->tsctc, "xmit_TCP_seg_contexts",
 246             KSTAT_DATA_UINT64);
 247         kstat_named_init(&igb_ks->tsctfc, "xmit_TCP_seg_contexts_fail",
 248             KSTAT_DATA_UINT64);
 249         kstat_named_init(&igb_ks->xonrxc, "XONs_recvd",
 250             KSTAT_DATA_UINT64);
 251         kstat_named_init(&igb_ks->xontxc, "XONs_xmitd",
 252             KSTAT_DATA_UINT64);
 253         kstat_named_init(&igb_ks->xoffrxc, "XOFFs_recvd",
 254             KSTAT_DATA_UINT64);
 255         kstat_named_init(&igb_ks->xofftxc, "XOFFs_xmitd",
 256             KSTAT_DATA_UINT64);
 257 
 258         /*
 259          * Function to provide kernel stat update on demand
 260          */
 261         ks->ks_update = igb_update_stats;
 262 
 263         ks->ks_private = (void *)igb;
 264 
 265         /*
 266          * Add kstat to systems kstat chain
 267          */
 268         kstat_install(ks);
 269 
 270         return (IGB_SUCCESS);
 271 }
 272 
 273 /*
 274  * Retrieve a value for one of the statistics for a particular rx ring
 275  */
 276 int
 277 igb_rx_ring_stat(mac_ring_driver_t rh, uint_t stat, uint64_t *val)
 278 {
 279         igb_rx_ring_t *rx_ring = (igb_rx_ring_t *)rh;
 280 
 281         switch (stat) {
 282         case MAC_STAT_RBYTES:
 283                 *val = rx_ring->rx_bytes;
 284                 break;
 285 
 286         case MAC_STAT_IPACKETS:
 287                 *val = rx_ring->rx_pkts;
 288                 break;
 289 
 290         default:
 291                 *val = 0;
 292                 return (ENOTSUP);
 293         }
 294 
 295         return (0);
 296 }
 297 
 298 /*
 299  * Retrieve a value for one of the statistics for a particular tx ring
 300  */
 301 int
 302 igb_tx_ring_stat(mac_ring_driver_t rh, uint_t stat, uint64_t *val)
 303 {
 304         igb_tx_ring_t *tx_ring = (igb_tx_ring_t *)rh;
 305 
 306         switch (stat) {
 307         case MAC_STAT_OBYTES:
 308                 *val = tx_ring->tx_bytes;
 309                 break;
 310 
 311         case MAC_STAT_OPACKETS:
 312                 *val = tx_ring->tx_pkts;
 313                 break;
 314 
 315         default:
 316                 *val = 0;
 317                 return (ENOTSUP);
 318         }
 319 
 320         return (0);
 321 }