1 /* SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0)
2 * Copyright(c) 2018-2019 Pensando Systems, Inc. All rights reserved.
5 #include <rte_malloc.h>
11 ionic_dev_setup(struct ionic_adapter *adapter)
13 struct ionic_dev_bar *bar = adapter->bars;
14 unsigned int num_bars = adapter->num_bars;
15 struct ionic_dev *idev = &adapter->idev;
19 /* BAR0: dev_cmd and interrupts */
21 IONIC_PRINT(ERR, "No bars found, aborting");
25 if (bar->len < IONIC_BAR0_SIZE) {
27 "Resource bar size %lu too small, aborting",
32 bar0_base = bar->vaddr;
33 idev->dev_info = (union ionic_dev_info_regs *)
34 &bar0_base[IONIC_BAR0_DEV_INFO_REGS_OFFSET];
35 idev->dev_cmd = (union ionic_dev_cmd_regs *)
36 &bar0_base[IONIC_BAR0_DEV_CMD_REGS_OFFSET];
37 idev->intr_status = (struct ionic_intr_status *)
38 &bar0_base[IONIC_BAR0_INTR_STATUS_OFFSET];
39 idev->intr_ctrl = (struct ionic_intr *)
40 &bar0_base[IONIC_BAR0_INTR_CTRL_OFFSET];
42 sig = ioread32(&idev->dev_info->signature);
43 if (sig != IONIC_DEV_INFO_SIGNATURE) {
44 IONIC_PRINT(ERR, "Incompatible firmware signature %" PRIx32 "",
52 IONIC_PRINT(ERR, "Doorbell bar missing, aborting");
56 idev->db_pages = bar->vaddr;
57 idev->phy_db_pages = bar->bus_addr;
62 /* Devcmd Interface */
65 ionic_dev_cmd_status(struct ionic_dev *idev)
67 return ioread8(&idev->dev_cmd->comp.comp.status);
71 ionic_dev_cmd_done(struct ionic_dev *idev)
73 return ioread32(&idev->dev_cmd->done) & IONIC_DEV_CMD_DONE;
77 ionic_dev_cmd_comp(struct ionic_dev *idev, void *mem)
79 union ionic_dev_cmd_comp *comp = mem;
81 uint32_t comp_size = sizeof(comp->words) /
82 sizeof(comp->words[0]);
84 for (i = 0; i < comp_size; i++)
85 comp->words[i] = ioread32(&idev->dev_cmd->comp.words[i]);
89 ionic_dev_cmd_go(struct ionic_dev *idev, union ionic_dev_cmd *cmd)
92 uint32_t cmd_size = sizeof(cmd->words) /
93 sizeof(cmd->words[0]);
95 for (i = 0; i < cmd_size; i++)
96 iowrite32(cmd->words[i], &idev->dev_cmd->cmd.words[i]);
98 iowrite32(0, &idev->dev_cmd->done);
99 iowrite32(1, &idev->dev_cmd->doorbell);
102 /* Device commands */
105 ionic_dev_cmd_identify(struct ionic_dev *idev, uint8_t ver)
107 union ionic_dev_cmd cmd = {
108 .identify.opcode = IONIC_CMD_IDENTIFY,
112 ionic_dev_cmd_go(idev, &cmd);
116 ionic_dev_cmd_init(struct ionic_dev *idev)
118 union ionic_dev_cmd cmd = {
119 .init.opcode = IONIC_CMD_INIT,
123 ionic_dev_cmd_go(idev, &cmd);
127 ionic_dev_cmd_reset(struct ionic_dev *idev)
129 union ionic_dev_cmd cmd = {
130 .reset.opcode = IONIC_CMD_RESET,
133 ionic_dev_cmd_go(idev, &cmd);