net/sfc/base: use MCDIv2 for requests with too long response

[dpdk.git] / drivers / net / sfc / base / efx_sram.c

diff --git a/drivers/net/sfc/base/efx_sram.c b/drivers/net/sfc/base/efx_sram.c
index a55b06e..5f4edea 100644 (file)
--- a/drivers/net/sfc/base/efx_sram.c
+++ b/drivers/net/sfc/base/efx_sram.c
@@ -198,3 +198,134 @@ efx_sram_buf_tbl_clear(
 }
 
 
+#if EFSYS_OPT_DIAG
+
+static                 void
+efx_sram_byte_increment_set(
+       __in            size_t row,
+       __in            boolean_t negate,
+       __out           efx_qword_t *eqp)
+{
+       size_t offset = row * FR_AZ_SRM_DBG_REG_STEP;
+       unsigned int index;
+
+       _NOTE(ARGUNUSED(negate))
+
+       for (index = 0; index < sizeof (efx_qword_t); index++)
+               eqp->eq_u8[index] = offset + index;
+}
+
+static                 void
+efx_sram_all_the_same_set(
+       __in            size_t row,
+       __in            boolean_t negate,
+       __out           efx_qword_t *eqp)
+{
+       _NOTE(ARGUNUSED(row))
+
+       if (negate)
+               EFX_SET_QWORD(*eqp);
+       else
+               EFX_ZERO_QWORD(*eqp);
+}
+
+static                 void
+efx_sram_bit_alternate_set(
+       __in            size_t row,
+       __in            boolean_t negate,
+       __out           efx_qword_t *eqp)
+{
+       _NOTE(ARGUNUSED(row))
+
+       EFX_POPULATE_QWORD_2(*eqp,
+           EFX_DWORD_0, (negate) ? 0x55555555 : 0xaaaaaaaa,
+           EFX_DWORD_1, (negate) ? 0x55555555 : 0xaaaaaaaa);
+}
+
+static                 void
+efx_sram_byte_alternate_set(
+       __in            size_t row,
+       __in            boolean_t negate,
+       __out           efx_qword_t *eqp)
+{
+       _NOTE(ARGUNUSED(row))
+
+       EFX_POPULATE_QWORD_2(*eqp,
+           EFX_DWORD_0, (negate) ? 0x00ff00ff : 0xff00ff00,
+           EFX_DWORD_1, (negate) ? 0x00ff00ff : 0xff00ff00);
+}
+
+static                 void
+efx_sram_byte_changing_set(
+       __in            size_t row,
+       __in            boolean_t negate,
+       __out           efx_qword_t *eqp)
+{
+       size_t offset = row * FR_AZ_SRM_DBG_REG_STEP;
+       unsigned int index;
+
+       for (index = 0; index < sizeof (efx_qword_t); index++) {
+               uint8_t byte;
+
+               if (offset / 256 == 0)
+                       byte = (uint8_t)((offset % 257) % 256);
+               else
+                       byte = (uint8_t)(~((offset - 8) % 257) % 256);
+
+               eqp->eq_u8[index] = (negate) ? ~byte : byte;
+       }
+}
+
+static                 void
+efx_sram_bit_sweep_set(
+       __in            size_t row,
+       __in            boolean_t negate,
+       __out           efx_qword_t *eqp)
+{
+       size_t offset = row * FR_AZ_SRM_DBG_REG_STEP;
+
+       if (negate) {
+               EFX_SET_QWORD(*eqp);
+               EFX_CLEAR_QWORD_BIT(*eqp, (offset / sizeof (efx_qword_t)) % 64);
+       } else {
+               EFX_ZERO_QWORD(*eqp);
+               EFX_SET_QWORD_BIT(*eqp, (offset / sizeof (efx_qword_t)) % 64);
+       }
+}
+
+efx_sram_pattern_fn_t  __efx_sram_pattern_fns[] = {
+       efx_sram_byte_increment_set,
+       efx_sram_all_the_same_set,
+       efx_sram_bit_alternate_set,
+       efx_sram_byte_alternate_set,
+       efx_sram_byte_changing_set,
+       efx_sram_bit_sweep_set
+};
+
+       __checkReturn   efx_rc_t
+efx_sram_test(
+       __in            efx_nic_t *enp,
+       __in            efx_pattern_type_t type)
+{
+       efx_sram_pattern_fn_t func;
+
+       EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
+
+       EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_NIC);
+
+       EFSYS_ASSERT(!(enp->en_mod_flags & EFX_MOD_RX));
+       EFSYS_ASSERT(!(enp->en_mod_flags & EFX_MOD_TX));
+       EFSYS_ASSERT(!(enp->en_mod_flags & EFX_MOD_EV));
+
+       /* SRAM testing is only available on Siena. */
+       if (enp->en_family != EFX_FAMILY_SIENA)
+               return (0);
+
+       /* Select pattern generator */
+       EFSYS_ASSERT3U(type, <, EFX_PATTERN_NTYPES);
+       func = __efx_sram_pattern_fns[type];
+
+       return (siena_sram_test(enp, func));
+}
+
+#endif /* EFSYS_OPT_DIAG */