drivers/net/ehea/ehea_hw.h

   1 /*
   2  *  linux/drivers/net/ehea/ehea_hw.h
   3  *
   4  *  eHEA ethernet device driver for IBM eServer System p
   5  *
   6  *  (C) Copyright IBM Corp. 2006
   7  *
   8  *  Authors:
   9  *       Christoph Raisch <raisch@de.ibm.com>
  10  *       Jan-Bernd Themann <themann@de.ibm.com>
  11  *       Thomas Klein <tklein@de.ibm.com>
  12  *
  13  *
  14  * This program is free software; you can redistribute it and/or modify
  15  * it under the terms of the GNU General Public License as published by
  16  * the Free Software Foundation; either version 2, or (at your option)
  17  * any later version.
  18  *
  19  * This program is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  * GNU General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU General Public License
  25  * along with this program; if not, write to the Free Software
  26  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  27  */
  28
  29 #ifndef __EHEA_HW_H__
  30 #define __EHEA_HW_H__
  31
  32 #define QPX_SQA_VALUE   EHEA_BMASK_IBM(48,63)
  33 #define QPX_RQ1A_VALUE  EHEA_BMASK_IBM(48,63)
  34 #define QPX_RQ2A_VALUE  EHEA_BMASK_IBM(48,63)
  35 #define QPX_RQ3A_VALUE  EHEA_BMASK_IBM(48,63)
  36
  37 #define QPTEMM_OFFSET(x) offsetof(struct ehea_qptemm, x)
  38
  39 struct ehea_qptemm {
  40         u64 qpx_hcr;
  41         u64 qpx_c;
  42         u64 qpx_herr;
  43         u64 qpx_aer;
  44         u64 qpx_sqa;
  45         u64 qpx_sqc;
  46         u64 qpx_rq1a;
  47         u64 qpx_rq1c;
  48         u64 qpx_st;
  49         u64 qpx_aerr;
  50         u64 qpx_tenure;
  51         u64 qpx_reserved1[(0x098 - 0x058) / 8];
  52         u64 qpx_portp;
  53         u64 qpx_reserved2[(0x100 - 0x0A0) / 8];
  54         u64 qpx_t;
  55         u64 qpx_sqhp;
  56         u64 qpx_sqptp;
  57         u64 qpx_reserved3[(0x140 - 0x118) / 8];
  58         u64 qpx_sqwsize;
  59         u64 qpx_reserved4[(0x170 - 0x148) / 8];
  60         u64 qpx_sqsize;
  61         u64 qpx_reserved5[(0x1B0 - 0x178) / 8];
  62         u64 qpx_sigt;
  63         u64 qpx_wqecnt;
  64         u64 qpx_rq1hp;
  65         u64 qpx_rq1ptp;
  66         u64 qpx_rq1size;
  67         u64 qpx_reserved6[(0x220 - 0x1D8) / 8];
  68         u64 qpx_rq1wsize;
  69         u64 qpx_reserved7[(0x240 - 0x228) / 8];
  70         u64 qpx_pd;
  71         u64 qpx_scqn;
  72         u64 qpx_rcqn;
  73         u64 qpx_aeqn;
  74         u64 reserved49;
  75         u64 qpx_ram;
  76         u64 qpx_reserved8[(0x300 - 0x270) / 8];
  77         u64 qpx_rq2a;
  78         u64 qpx_rq2c;
  79         u64 qpx_rq2hp;
  80         u64 qpx_rq2ptp;
  81         u64 qpx_rq2size;
  82         u64 qpx_rq2wsize;
  83         u64 qpx_rq2th;
  84         u64 qpx_rq3a;
  85         u64 qpx_rq3c;
  86         u64 qpx_rq3hp;
  87         u64 qpx_rq3ptp;
  88         u64 qpx_rq3size;
  89         u64 qpx_rq3wsize;
  90         u64 qpx_rq3th;
  91         u64 qpx_lpn;
  92         u64 qpx_reserved9[(0x400 - 0x378) / 8];
  93         u64 reserved_ext[(0x500 - 0x400) / 8];
  94         u64 reserved2[(0x1000 - 0x500) / 8];
  95 };
  96
  97 #define MRx_HCR_LPARID_VALID EHEA_BMASK_IBM(0, 0)
  98
  99 #define MRMWMM_OFFSET(x) offsetof(struct ehea_mrmwmm, x)
 100
 101 struct ehea_mrmwmm {
 102         u64 mrx_hcr;
 103         u64 mrx_c;
 104         u64 mrx_herr;
 105         u64 mrx_aer;
 106         u64 mrx_pp;
 107         u64 reserved1;
 108         u64 reserved2;
 109         u64 reserved3;
 110         u64 reserved4[(0x200 - 0x40) / 8];
 111         u64 mrx_ctl[64];
 112 };
 113
 114 #define QPEDMM_OFFSET(x) offsetof(struct ehea_qpedmm, x)
 115
 116 struct ehea_qpedmm {
 117
 118         u64 reserved0[(0x400) / 8];
 119         u64 qpedx_phh;
 120         u64 qpedx_ppsgp;
 121         u64 qpedx_ppsgu;
 122         u64 qpedx_ppdgp;
 123         u64 qpedx_ppdgu;
 124         u64 qpedx_aph;
 125         u64 qpedx_apsgp;
 126         u64 qpedx_apsgu;
 127         u64 qpedx_apdgp;
 128         u64 qpedx_apdgu;
 129         u64 qpedx_apav;
 130         u64 qpedx_apsav;
 131         u64 qpedx_hcr;
 132         u64 reserved1[4];
 133         u64 qpedx_rrl0;
 134         u64 qpedx_rrrkey0;
 135         u64 qpedx_rrva0;
 136         u64 reserved2;
 137         u64 qpedx_rrl1;
 138         u64 qpedx_rrrkey1;
 139         u64 qpedx_rrva1;
 140         u64 reserved3;
 141         u64 qpedx_rrl2;
 142         u64 qpedx_rrrkey2;
 143         u64 qpedx_rrva2;
 144         u64 reserved4;
 145         u64 qpedx_rrl3;
 146         u64 qpedx_rrrkey3;
 147         u64 qpedx_rrva3;
 148 };
 149
 150 #define CQX_FECADDER EHEA_BMASK_IBM(32, 63)
 151 #define CQX_FEC_CQE_CNT EHEA_BMASK_IBM(32, 63)
 152 #define CQX_N1_GENERATE_COMP_EVENT EHEA_BMASK_IBM(0, 0)
 153 #define CQX_EP_EVENT_PENDING EHEA_BMASK_IBM(0, 0)
 154
 155 #define CQTEMM_OFFSET(x) offsetof(struct ehea_cqtemm, x)
 156
 157 struct ehea_cqtemm {
 158         u64 cqx_hcr;
 159         u64 cqx_c;
 160         u64 cqx_herr;
 161         u64 cqx_aer;
 162         u64 cqx_ptp;
 163         u64 cqx_tp;
 164         u64 cqx_fec;
 165         u64 cqx_feca;
 166         u64 cqx_ep;
 167         u64 cqx_eq;
 168         u64 reserved1;
 169         u64 cqx_n0;
 170         u64 cqx_n1;
 171         u64 reserved2[(0x1000 - 0x60) / 8];
 172 };
 173
 174 #define EQTEMM_OFFSET(x) offsetof(struct ehea_eqtemm, x)
 175
 176 struct ehea_eqtemm {
 177         u64 eqx_hcr;
 178         u64 eqx_c;
 179         u64 eqx_herr;
 180         u64 eqx_aer;
 181         u64 eqx_ptp;
 182         u64 eqx_tp;
 183         u64 eqx_ssba;
 184         u64 eqx_psba;
 185         u64 eqx_cec;
 186         u64 eqx_meql;
 187         u64 eqx_xisbi;
 188         u64 eqx_xisc;
 189         u64 eqx_it;
 190 };
 191
 192 /*
 193  * These access functions will be changed when the dissuccsion about
 194  * the new access methods for POWER has settled.
 195  */
 196
 197 static inline u64 epa_load(struct h_epa epa, u32 offset)
 198 {
 199         return __raw_readq((void __iomem *)(epa.addr + offset));
 200 }
 201
 202 static inline void epa_store(struct h_epa epa, u32 offset, u64 value)
 203 {
 204         __raw_writeq(value, (void __iomem *)(epa.addr + offset));
 205         epa_load(epa, offset);  /* synchronize explicitly to eHEA */
 206 }
 207
 208 static inline void epa_store_acc(struct h_epa epa, u32 offset, u64 value)
 209 {
 210         __raw_writeq(value, (void __iomem *)(epa.addr + offset));
 211 }
 212
 213 #define epa_store_eq(epa, offset, value)\
 214         epa_store(epa, EQTEMM_OFFSET(offset), value)
 215 #define epa_load_eq(epa, offset)\
 216         epa_load(epa, EQTEMM_OFFSET(offset))
 217
 218 #define epa_store_cq(epa, offset, value)\
 219         epa_store(epa, CQTEMM_OFFSET(offset), value)
 220 #define epa_load_cq(epa, offset)\
 221         epa_load(epa, CQTEMM_OFFSET(offset))
 222
 223 #define epa_store_qp(epa, offset, value)\
 224         epa_store(epa, QPTEMM_OFFSET(offset), value)
 225 #define epa_load_qp(epa, offset)\
 226         epa_load(epa, QPTEMM_OFFSET(offset))
 227
 228 #define epa_store_qped(epa, offset, value)\
 229         epa_store(epa, QPEDMM_OFFSET(offset), value)
 230 #define epa_load_qped(epa, offset)\
 231         epa_load(epa, QPEDMM_OFFSET(offset))
 232
 233 #define epa_store_mrmw(epa, offset, value)\
 234         epa_store(epa, MRMWMM_OFFSET(offset), value)
 235 #define epa_load_mrmw(epa, offset)\
 236         epa_load(epa, MRMWMM_OFFSET(offset))
 237
 238 #define epa_store_base(epa, offset, value)\
 239         epa_store(epa, HCAGR_OFFSET(offset), value)
 240 #define epa_load_base(epa, offset)\
 241         epa_load(epa, HCAGR_OFFSET(offset))
 242
 243 static inline void ehea_update_sqa(struct ehea_qp *qp, u16 nr_wqes)
 244 {
 245         struct h_epa epa = qp->epas.kernel;
 246         epa_store_acc(epa, QPTEMM_OFFSET(qpx_sqa),
 247                       EHEA_BMASK_SET(QPX_SQA_VALUE, nr_wqes));
 248 }
 249
 250 static inline void ehea_update_rq3a(struct ehea_qp *qp, u16 nr_wqes)
 251 {
 252         struct h_epa epa = qp->epas.kernel;
 253         epa_store_acc(epa, QPTEMM_OFFSET(qpx_rq3a),
 254                       EHEA_BMASK_SET(QPX_RQ1A_VALUE, nr_wqes));
 255 }
 256
 257 static inline void ehea_update_rq2a(struct ehea_qp *qp, u16 nr_wqes)
 258 {
 259         struct h_epa epa = qp->epas.kernel;
 260         epa_store_acc(epa, QPTEMM_OFFSET(qpx_rq2a),
 261                       EHEA_BMASK_SET(QPX_RQ2A_VALUE, nr_wqes));
 262 }
 263
 264 static inline void ehea_update_rq1a(struct ehea_qp *qp, u16 nr_wqes)
 265 {
 266         struct h_epa epa = qp->epas.kernel;
 267         epa_store_acc(epa, QPTEMM_OFFSET(qpx_rq1a),
 268                       EHEA_BMASK_SET(QPX_RQ3A_VALUE, nr_wqes));
 269 }
 270
 271 static inline void ehea_update_feca(struct ehea_cq *cq, u32 nr_cqes)
 272 {
 273         struct h_epa epa = cq->epas.kernel;
 274         epa_store_acc(epa, CQTEMM_OFFSET(cqx_feca),
 275                       EHEA_BMASK_SET(CQX_FECADDER, nr_cqes));
 276 }
 277
 278 static inline void ehea_reset_cq_n1(struct ehea_cq *cq)
 279 {
 280         struct h_epa epa = cq->epas.kernel;
 281         epa_store_cq(epa, cqx_n1,
 282                      EHEA_BMASK_SET(CQX_N1_GENERATE_COMP_EVENT, 1));
 283 }
 284
 285 static inline void ehea_reset_cq_ep(struct ehea_cq *my_cq)
 286 {
 287         struct h_epa epa = my_cq->epas.kernel;
 288         epa_store_acc(epa, CQTEMM_OFFSET(cqx_ep),
 289                       EHEA_BMASK_SET(CQX_EP_EVENT_PENDING, 0));
 290 }
 291
 292 #endif  /* __EHEA_HW_H__ */