2 * Copyright (c) 2009-2015 Solarflare Communications Inc.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
8 * 1. Redistributions of source code must retain the above copyright notice,
9 * this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright notice,
11 * this list of conditions and the following disclaimer in the documentation
12 * and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
15 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
16 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
21 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
22 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
23 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
24 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 * The views and conclusions contained in the software and documentation are
27 * those of the authors and should not be interpreted as representing official
28 * policies, either expressed or implied, of the FreeBSD Project.
31 #include <sys/cdefs.h>
32 __FBSDID("$FreeBSD$");
44 efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
46 uint32_t rx_base, tx_base;
48 EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
49 EFSYS_ASSERT(enp->en_family == EFX_FAMILY_SIENA);
51 rx_base = encp->enc_buftbl_limit;
52 tx_base = rx_base + (encp->enc_rxq_limit *
53 EFX_RXQ_DC_NDESCS(EFX_RXQ_DC_SIZE));
55 /* Initialize the transmit descriptor cache */
56 EFX_POPULATE_OWORD_1(oword, FRF_AZ_SRM_TX_DC_BASE_ADR, tx_base);
57 EFX_BAR_WRITEO(enp, FR_AZ_SRM_TX_DC_CFG_REG, &oword);
59 EFX_POPULATE_OWORD_1(oword, FRF_AZ_TX_DC_SIZE, EFX_TXQ_DC_SIZE);
60 EFX_BAR_WRITEO(enp, FR_AZ_TX_DC_CFG_REG, &oword);
62 /* Initialize the receive descriptor cache */
63 EFX_POPULATE_OWORD_1(oword, FRF_AZ_SRM_RX_DC_BASE_ADR, rx_base);
64 EFX_BAR_WRITEO(enp, FR_AZ_SRM_RX_DC_CFG_REG, &oword);
66 EFX_POPULATE_OWORD_1(oword, FRF_AZ_RX_DC_SIZE, EFX_RXQ_DC_SIZE);
67 EFX_BAR_WRITEO(enp, FR_AZ_RX_DC_CFG_REG, &oword);
69 /* Set receive descriptor pre-fetch low water mark */
70 EFX_POPULATE_OWORD_1(oword, FRF_AZ_RX_DC_PF_LWM, 56);
71 EFX_BAR_WRITEO(enp, FR_AZ_RX_DC_PF_WM_REG, &oword);
73 /* Set the event queue to use for SRAM updates */
74 EFX_POPULATE_OWORD_1(oword, FRF_AZ_SRM_UPD_EVQ_ID, 0);
75 EFX_BAR_WRITEO(enp, FR_AZ_SRM_UPD_EVQ_REG, &oword);
83 __in efx_sram_pattern_fn_t func)
93 EFSYS_ASSERT(enp->en_family == EFX_FAMILY_SIENA);
95 /* Reconfigure into HALF buffer table mode */
96 EFX_POPULATE_OWORD_1(oword, FRF_AZ_BUF_TBL_MODE, 0);
97 EFX_BAR_WRITEO(enp, FR_AZ_BUF_TBL_CFG_REG, &oword);
100 * Move the descriptor caches up to the top of SRAM, and test
101 * all of SRAM below them. We only miss out one row here.
103 rows = SIENA_SRAM_ROWS - 1;
104 EFX_POPULATE_OWORD_1(oword, FRF_AZ_SRM_RX_DC_BASE_ADR, rows);
105 EFX_BAR_WRITEO(enp, FR_AZ_SRM_RX_DC_CFG_REG, &oword);
107 EFX_POPULATE_OWORD_1(oword, FRF_AZ_SRM_TX_DC_BASE_ADR, rows + 1);
108 EFX_BAR_WRITEO(enp, FR_AZ_SRM_TX_DC_CFG_REG, &oword);
111 * Write the pattern through BUF_HALF_TBL. Write
112 * in 64 entry batches, waiting 1us in between each batch
113 * to guarantee not to overflow the SRAM fifo
115 for (wptr = 0, rptr = 0; wptr < rows; ++wptr) {
116 func(wptr, B_FALSE, &qword);
117 EFX_BAR_TBL_WRITEQ(enp, FR_AZ_BUF_HALF_TBL, wptr, &qword);
119 if ((wptr - rptr) < 64 && wptr < rows - 1)
124 for (; rptr <= wptr; ++rptr) {
125 func(rptr, B_FALSE, &qword);
126 EFX_BAR_TBL_READQ(enp, FR_AZ_BUF_HALF_TBL, rptr,
129 if (!EFX_QWORD_IS_EQUAL(verify, qword)) {
136 /* And do the same negated */
137 for (wptr = 0, rptr = 0; wptr < rows; ++wptr) {
138 func(wptr, B_TRUE, &qword);
139 EFX_BAR_TBL_WRITEQ(enp, FR_AZ_BUF_HALF_TBL, wptr, &qword);
141 if ((wptr - rptr) < 64 && wptr < rows - 1)
146 for (; rptr <= wptr; ++rptr) {
147 func(rptr, B_TRUE, &qword);
148 EFX_BAR_TBL_READQ(enp, FR_AZ_BUF_HALF_TBL, rptr,
151 if (!EFX_QWORD_IS_EQUAL(verify, qword)) {
158 /* Restore back to FULL buffer table mode */
159 EFX_POPULATE_OWORD_1(oword, FRF_AZ_BUF_TBL_MODE, 1);
160 EFX_BAR_WRITEO(enp, FR_AZ_BUF_TBL_CFG_REG, &oword);
163 * We don't need to reconfigure SRAM again because the API
164 * requires efx_nic_fini() to be called after an sram test.
171 EFSYS_PROBE1(fail1, int, rc);
173 /* Restore back to FULL buffer table mode */
174 EFX_POPULATE_OWORD_1(oword, FRF_AZ_BUF_TBL_MODE, 1);
175 EFX_BAR_WRITEO(enp, FR_AZ_BUF_TBL_CFG_REG, &oword);
180 #endif /* EFSYS_OPT_DIAG */
182 #endif /* EFSYS_OPT_SIENA */