linux/drivers/net/ethernet/ibm/ehea/ehea_hw.h
<<
>>
Prefs
   1/* SPDX-License-Identifier: GPL-2.0-or-later */
   2/*
   3 *  linux/drivers/net/ethernet/ibm/ehea/ehea_hw.h
   4 *
   5 *  eHEA ethernet device driver for IBM eServer System p
   6 *
   7 *  (C) Copyright IBM Corp. 2006
   8 *
   9 *  Authors:
  10 *       Christoph Raisch <raisch@de.ibm.com>
  11 *       Jan-Bernd Themann <themann@de.ibm.com>
  12 *       Thomas Klein <tklein@de.ibm.com>
  13 */
  14
  15#ifndef __EHEA_HW_H__
  16#define __EHEA_HW_H__
  17
  18#define QPX_SQA_VALUE   EHEA_BMASK_IBM(48, 63)
  19#define QPX_RQ1A_VALUE  EHEA_BMASK_IBM(48, 63)
  20#define QPX_RQ2A_VALUE  EHEA_BMASK_IBM(48, 63)
  21#define QPX_RQ3A_VALUE  EHEA_BMASK_IBM(48, 63)
  22
  23#define QPTEMM_OFFSET(x) offsetof(struct ehea_qptemm, x)
  24
  25struct ehea_qptemm {
  26        u64 qpx_hcr;
  27        u64 qpx_c;
  28        u64 qpx_herr;
  29        u64 qpx_aer;
  30        u64 qpx_sqa;
  31        u64 qpx_sqc;
  32        u64 qpx_rq1a;
  33        u64 qpx_rq1c;
  34        u64 qpx_st;
  35        u64 qpx_aerr;
  36        u64 qpx_tenure;
  37        u64 qpx_reserved1[(0x098 - 0x058) / 8];
  38        u64 qpx_portp;
  39        u64 qpx_reserved2[(0x100 - 0x0A0) / 8];
  40        u64 qpx_t;
  41        u64 qpx_sqhp;
  42        u64 qpx_sqptp;
  43        u64 qpx_reserved3[(0x140 - 0x118) / 8];
  44        u64 qpx_sqwsize;
  45        u64 qpx_reserved4[(0x170 - 0x148) / 8];
  46        u64 qpx_sqsize;
  47        u64 qpx_reserved5[(0x1B0 - 0x178) / 8];
  48        u64 qpx_sigt;
  49        u64 qpx_wqecnt;
  50        u64 qpx_rq1hp;
  51        u64 qpx_rq1ptp;
  52        u64 qpx_rq1size;
  53        u64 qpx_reserved6[(0x220 - 0x1D8) / 8];
  54        u64 qpx_rq1wsize;
  55        u64 qpx_reserved7[(0x240 - 0x228) / 8];
  56        u64 qpx_pd;
  57        u64 qpx_scqn;
  58        u64 qpx_rcqn;
  59        u64 qpx_aeqn;
  60        u64 reserved49;
  61        u64 qpx_ram;
  62        u64 qpx_reserved8[(0x300 - 0x270) / 8];
  63        u64 qpx_rq2a;
  64        u64 qpx_rq2c;
  65        u64 qpx_rq2hp;
  66        u64 qpx_rq2ptp;
  67        u64 qpx_rq2size;
  68        u64 qpx_rq2wsize;
  69        u64 qpx_rq2th;
  70        u64 qpx_rq3a;
  71        u64 qpx_rq3c;
  72        u64 qpx_rq3hp;
  73        u64 qpx_rq3ptp;
  74        u64 qpx_rq3size;
  75        u64 qpx_rq3wsize;
  76        u64 qpx_rq3th;
  77        u64 qpx_lpn;
  78        u64 qpx_reserved9[(0x400 - 0x378) / 8];
  79        u64 reserved_ext[(0x500 - 0x400) / 8];
  80        u64 reserved2[(0x1000 - 0x500) / 8];
  81};
  82
  83#define MRx_HCR_LPARID_VALID EHEA_BMASK_IBM(0, 0)
  84
  85#define MRMWMM_OFFSET(x) offsetof(struct ehea_mrmwmm, x)
  86
  87struct ehea_mrmwmm {
  88        u64 mrx_hcr;
  89        u64 mrx_c;
  90        u64 mrx_herr;
  91        u64 mrx_aer;
  92        u64 mrx_pp;
  93        u64 reserved1;
  94        u64 reserved2;
  95        u64 reserved3;
  96        u64 reserved4[(0x200 - 0x40) / 8];
  97        u64 mrx_ctl[64];
  98};
  99
 100#define QPEDMM_OFFSET(x) offsetof(struct ehea_qpedmm, x)
 101
 102struct ehea_qpedmm {
 103
 104        u64 reserved0[(0x400) / 8];
 105        u64 qpedx_phh;
 106        u64 qpedx_ppsgp;
 107        u64 qpedx_ppsgu;
 108        u64 qpedx_ppdgp;
 109        u64 qpedx_ppdgu;
 110        u64 qpedx_aph;
 111        u64 qpedx_apsgp;
 112        u64 qpedx_apsgu;
 113        u64 qpedx_apdgp;
 114        u64 qpedx_apdgu;
 115        u64 qpedx_apav;
 116        u64 qpedx_apsav;
 117        u64 qpedx_hcr;
 118        u64 reserved1[4];
 119        u64 qpedx_rrl0;
 120        u64 qpedx_rrrkey0;
 121        u64 qpedx_rrva0;
 122        u64 reserved2;
 123        u64 qpedx_rrl1;
 124        u64 qpedx_rrrkey1;
 125        u64 qpedx_rrva1;
 126        u64 reserved3;
 127        u64 qpedx_rrl2;
 128        u64 qpedx_rrrkey2;
 129        u64 qpedx_rrva2;
 130        u64 reserved4;
 131        u64 qpedx_rrl3;
 132        u64 qpedx_rrrkey3;
 133        u64 qpedx_rrva3;
 134};
 135
 136#define CQX_FECADDER EHEA_BMASK_IBM(32, 63)
 137#define CQX_FEC_CQE_CNT EHEA_BMASK_IBM(32, 63)
 138#define CQX_N1_GENERATE_COMP_EVENT EHEA_BMASK_IBM(0, 0)
 139#define CQX_EP_EVENT_PENDING EHEA_BMASK_IBM(0, 0)
 140
 141#define CQTEMM_OFFSET(x) offsetof(struct ehea_cqtemm, x)
 142
 143struct ehea_cqtemm {
 144        u64 cqx_hcr;
 145        u64 cqx_c;
 146        u64 cqx_herr;
 147        u64 cqx_aer;
 148        u64 cqx_ptp;
 149        u64 cqx_tp;
 150        u64 cqx_fec;
 151        u64 cqx_feca;
 152        u64 cqx_ep;
 153        u64 cqx_eq;
 154        u64 reserved1;
 155        u64 cqx_n0;
 156        u64 cqx_n1;
 157        u64 reserved2[(0x1000 - 0x60) / 8];
 158};
 159
 160#define EQTEMM_OFFSET(x) offsetof(struct ehea_eqtemm, x)
 161
 162struct ehea_eqtemm {
 163        u64 eqx_hcr;
 164        u64 eqx_c;
 165        u64 eqx_herr;
 166        u64 eqx_aer;
 167        u64 eqx_ptp;
 168        u64 eqx_tp;
 169        u64 eqx_ssba;
 170        u64 eqx_psba;
 171        u64 eqx_cec;
 172        u64 eqx_meql;
 173        u64 eqx_xisbi;
 174        u64 eqx_xisc;
 175        u64 eqx_it;
 176};
 177
 178/*
 179 * These access functions will be changed when the dissuccsion about
 180 * the new access methods for POWER has settled.
 181 */
 182
 183static inline u64 epa_load(struct h_epa epa, u32 offset)
 184{
 185        return __raw_readq((void __iomem *)(epa.addr + offset));
 186}
 187
 188static inline void epa_store(struct h_epa epa, u32 offset, u64 value)
 189{
 190        __raw_writeq(value, (void __iomem *)(epa.addr + offset));
 191        epa_load(epa, offset);  /* synchronize explicitly to eHEA */
 192}
 193
 194static inline void epa_store_acc(struct h_epa epa, u32 offset, u64 value)
 195{
 196        __raw_writeq(value, (void __iomem *)(epa.addr + offset));
 197}
 198
 199#define epa_store_cq(epa, offset, value)\
 200        epa_store(epa, CQTEMM_OFFSET(offset), value)
 201#define epa_load_cq(epa, offset)\
 202        epa_load(epa, CQTEMM_OFFSET(offset))
 203
 204static inline void ehea_update_sqa(struct ehea_qp *qp, u16 nr_wqes)
 205{
 206        struct h_epa epa = qp->epas.kernel;
 207        epa_store_acc(epa, QPTEMM_OFFSET(qpx_sqa),
 208                      EHEA_BMASK_SET(QPX_SQA_VALUE, nr_wqes));
 209}
 210
 211static inline void ehea_update_rq3a(struct ehea_qp *qp, u16 nr_wqes)
 212{
 213        struct h_epa epa = qp->epas.kernel;
 214        epa_store_acc(epa, QPTEMM_OFFSET(qpx_rq3a),
 215                      EHEA_BMASK_SET(QPX_RQ1A_VALUE, nr_wqes));
 216}
 217
 218static inline void ehea_update_rq2a(struct ehea_qp *qp, u16 nr_wqes)
 219{
 220        struct h_epa epa = qp->epas.kernel;
 221        epa_store_acc(epa, QPTEMM_OFFSET(qpx_rq2a),
 222                      EHEA_BMASK_SET(QPX_RQ2A_VALUE, nr_wqes));
 223}
 224
 225static inline void ehea_update_rq1a(struct ehea_qp *qp, u16 nr_wqes)
 226{
 227        struct h_epa epa = qp->epas.kernel;
 228        epa_store_acc(epa, QPTEMM_OFFSET(qpx_rq1a),
 229                      EHEA_BMASK_SET(QPX_RQ3A_VALUE, nr_wqes));
 230}
 231
 232static inline void ehea_update_feca(struct ehea_cq *cq, u32 nr_cqes)
 233{
 234        struct h_epa epa = cq->epas.kernel;
 235        epa_store_acc(epa, CQTEMM_OFFSET(cqx_feca),
 236                      EHEA_BMASK_SET(CQX_FECADDER, nr_cqes));
 237}
 238
 239static inline void ehea_reset_cq_n1(struct ehea_cq *cq)
 240{
 241        struct h_epa epa = cq->epas.kernel;
 242        epa_store_cq(epa, cqx_n1,
 243                     EHEA_BMASK_SET(CQX_N1_GENERATE_COMP_EVENT, 1));
 244}
 245
 246static inline void ehea_reset_cq_ep(struct ehea_cq *my_cq)
 247{
 248        struct h_epa epa = my_cq->epas.kernel;
 249        epa_store_acc(epa, CQTEMM_OFFSET(cqx_ep),
 250                      EHEA_BMASK_SET(CQX_EP_EVENT_PENDING, 0));
 251}
 252
 253#endif  /* __EHEA_HW_H__ */
 254