-/*
- * Copyright (c) 2016 QLogic Corporation.
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright (c) 2016 - 2018 Cavium Inc.
* All rights reserved.
- * www.qlogic.com
- *
- * See LICENSE.qede_pmd for copyright and licensing details.
+ * www.cavium.com
*/
#include <rte_string_fns.h>
static enum _ecore_status_t ecore_grc_attn_cb(struct ecore_hwfn *p_hwfn)
{
+ enum _ecore_status_t rc = ECORE_SUCCESS;
u32 tmp, tmp2;
/* We've already cleared the timeout interrupt register, so we learn
- * of interrupts via the validity register
+ * of interrupts via the validity register.
+ * Any attention which is not for a timeout event is treated as fatal.
*/
tmp = ecore_rd(p_hwfn, p_hwfn->p_dpc_ptt,
GRC_REG_TIMEOUT_ATTN_ACCESS_VALID);
- if (!(tmp & ECORE_GRC_ATTENTION_VALID_BIT))
+ if (!(tmp & ECORE_GRC_ATTENTION_VALID_BIT)) {
+ rc = ECORE_INVAL;
goto out;
+ }
/* Read the GRC timeout information */
tmp = ecore_rd(p_hwfn, p_hwfn->p_dpc_ptt,
(tmp2 & ECORE_GRC_ATTENTION_VF_MASK) >>
ECORE_GRC_ATTENTION_VF_SHIFT);
-out:
- /* Regardles of anything else, clean the validity bit */
+ /* Clean the validity bit */
ecore_wr(p_hwfn, p_hwfn->p_dpc_ptt,
GRC_REG_TIMEOUT_ATTN_ACCESS_VALID, 0);
- return ECORE_SUCCESS;
+out:
+ return rc;
}
#define ECORE_PGLUE_ATTENTION_VALID (1 << 29)
#define ECORE_DORQ_ATTENTION_SIZE_MASK (0x7f)
#define ECORE_DORQ_ATTENTION_SIZE_SHIFT (16)
-#define ECORE_DB_REC_COUNT 10
+#define ECORE_DB_REC_COUNT 1000
#define ECORE_DB_REC_INTERVAL 100
-/* assumes sticky overflow indication was set for this PF */
-static enum _ecore_status_t ecore_db_rec_attn(struct ecore_hwfn *p_hwfn,
- struct ecore_ptt *p_ptt)
+static enum _ecore_status_t ecore_db_rec_flush_queue(struct ecore_hwfn *p_hwfn,
+ struct ecore_ptt *p_ptt)
{
- u8 count = ECORE_DB_REC_COUNT;
+ u32 count = ECORE_DB_REC_COUNT;
u32 usage = 1;
/* wait for usage to zero or count to run out. This is necessary since
return ECORE_TIMEOUT;
}
+ return ECORE_SUCCESS;
+}
+
+enum _ecore_status_t ecore_db_rec_handler(struct ecore_hwfn *p_hwfn,
+ struct ecore_ptt *p_ptt)
+{
+ u32 overflow;
+ enum _ecore_status_t rc;
+
+ overflow = ecore_rd(p_hwfn, p_ptt, DORQ_REG_PF_OVFL_STICKY);
+ DP_NOTICE(p_hwfn, false, "PF Overflow sticky 0x%x\n", overflow);
+ if (!overflow) {
+ ecore_db_recovery_execute(p_hwfn, DB_REC_ONCE);
+ return ECORE_SUCCESS;
+ }
+
+ if (ecore_edpm_enabled(p_hwfn)) {
+ rc = ecore_db_rec_flush_queue(p_hwfn, p_ptt);
+ if (rc != ECORE_SUCCESS)
+ return rc;
+ }
+
/* flush any pedning (e)dpm as they may never arrive */
ecore_wr(p_hwfn, p_ptt, DORQ_REG_DPM_FORCE_ABORT, 0x1);
static enum _ecore_status_t ecore_dorq_attn_cb(struct ecore_hwfn *p_hwfn)
{
- u32 int_sts, first_drop_reason, details, address, overflow,
- all_drops_reason;
+ u32 int_sts, first_drop_reason, details, address, all_drops_reason;
struct ecore_ptt *p_ptt = p_hwfn->p_dpc_ptt;
enum _ecore_status_t rc;
DORQ_REG_DB_DROP_DETAILS);
address = ecore_rd(p_hwfn, p_ptt,
DORQ_REG_DB_DROP_DETAILS_ADDRESS);
- overflow = ecore_rd(p_hwfn, p_ptt,
- DORQ_REG_PF_OVFL_STICKY);
all_drops_reason = ecore_rd(p_hwfn, p_ptt,
DORQ_REG_DB_DROP_DETAILS_REASON);
"FID\t\t0x%04x\t\t(Opaque FID)\n"
"Size\t\t0x%04x\t\t(in bytes)\n"
"1st drop reason\t0x%08x\t(details on first drop since last handling)\n"
- "Sticky reasons\t0x%08x\t(all drop reasons since last handling)\n"
- "Overflow\t0x%x\t\t(a per PF indication)\n",
+ "Sticky reasons\t0x%08x\t(all drop reasons since last handling)\n",
address,
GET_FIELD(details, ECORE_DORQ_ATTENTION_OPAQUE),
GET_FIELD(details, ECORE_DORQ_ATTENTION_SIZE) * 4,
- first_drop_reason, all_drops_reason, overflow);
+ first_drop_reason, all_drops_reason);
- /* if this PF caused overflow, initiate recovery */
- if (overflow) {
- rc = ecore_db_rec_attn(p_hwfn, p_ptt);
- if (rc != ECORE_SUCCESS)
- return rc;
- }
+ rc = ecore_db_rec_handler(p_hwfn, p_ptt);
+ OSAL_DB_REC_OCCURRED(p_hwfn);
+ if (rc != ECORE_SUCCESS)
+ return rc;
/* clear the doorbell drop details and prepare for next drop */
ecore_wr(p_hwfn, p_ptt, DORQ_REG_DB_DROP_DETAILS_REL, 0);
ecore_dmae_host2grc(p_hwfn, p_ptt,
(u64)(osal_uintptr_t)&phys_addr,
CAU_REG_SB_ADDR_MEMORY +
- igu_sb_id * sizeof(u64), 2, 0);
+ igu_sb_id * sizeof(u64), 2,
+ OSAL_NULL /* default parameters */);
ecore_dmae_host2grc(p_hwfn, p_ptt,
(u64)(osal_uintptr_t)&sb_entry,
CAU_REG_SB_VAR_MEMORY +
- igu_sb_id * sizeof(u64), 2, 0);
+ igu_sb_id * sizeof(u64), 2,
+ OSAL_NULL /* default parameters */);
} else {
/* Initialize Status Block Address */
STORE_RT_REG_AGG(p_hwfn,
rc = ecore_dmae_grc2host(p_hwfn, p_ptt, CAU_REG_SB_VAR_MEMORY +
sb_id * sizeof(u64),
- (u64)(osal_uintptr_t)&sb_entry, 2, 0);
+ (u64)(osal_uintptr_t)&sb_entry, 2,
+ OSAL_NULL /* default parameters */);
if (rc != ECORE_SUCCESS) {
DP_ERR(p_hwfn, "dmae_grc2host failed %d\n", rc);
return rc;
rc = ecore_dmae_host2grc(p_hwfn, p_ptt,
(u64)(osal_uintptr_t)&sb_entry,
- CAU_REG_SB_VAR_MEMORY +
- sb_id * sizeof(u64), 2, 0);
+ CAU_REG_SB_VAR_MEMORY + sb_id * sizeof(u64), 2,
+ OSAL_NULL /* default parameters */);
if (rc != ECORE_SUCCESS) {
DP_ERR(p_hwfn, "dmae_host2grc failed %d\n", rc);
return rc;
return ECORE_SUCCESS;
}
+
+void ecore_pf_flr_igu_cleanup(struct ecore_hwfn *p_hwfn)
+{
+ struct ecore_ptt *p_ptt = p_hwfn->p_main_ptt;
+ struct ecore_ptt *p_dpc_ptt = ecore_get_reserved_ptt(p_hwfn,
+ RESERVED_PTT_DPC);
+ int i;
+
+ /* Do not reorder the following cleanup sequence */
+ /* Ack all attentions */
+ ecore_wr(p_hwfn, p_ptt, IGU_REG_ATTENTION_ACK_BITS, 0xfff);
+
+ /* Clear driver attention */
+ ecore_wr(p_hwfn, p_dpc_ptt,
+ ((p_hwfn->rel_pf_id << 3) + MISC_REG_AEU_GENERAL_ATTN_0), 0);
+
+ /* Clear per-PF IGU registers to restore them as if the IGU
+ * was reset for this PF
+ */
+ ecore_wr(p_hwfn, p_ptt, IGU_REG_LEADING_EDGE_LATCH, 0);
+ ecore_wr(p_hwfn, p_ptt, IGU_REG_TRAILING_EDGE_LATCH, 0);
+ ecore_wr(p_hwfn, p_ptt, IGU_REG_PF_CONFIGURATION, 0);
+
+ /* Execute IGU clean up*/
+ ecore_wr(p_hwfn, p_ptt, IGU_REG_PF_FUNCTIONAL_CLEANUP, 1);
+
+ /* Clear Stats */
+ ecore_wr(p_hwfn, p_ptt, IGU_REG_STATISTIC_NUM_OF_INTA_ASSERTED, 0);
+
+ for (i = 0; i < IGU_REG_PBA_STS_PF_SIZE; i++)
+ ecore_wr(p_hwfn, p_ptt, IGU_REG_PBA_STS_PF + i * 4, 0);
+}