int qed_selftest_register(struct qed_dev *cdev)
{ struct qed_hwfn *p_hwfn; struct qed_ptt *p_ptt; int rc = 0, i;
/* although performed by MCP, this test is per engine */
for_each_hwfn(cdev, i) {
p_hwfn = &cdev->hwfns[i];
p_ptt = qed_ptt_acquire(p_hwfn); if (!p_ptt) {
DP_ERR(p_hwfn, "failed to acquire ptt\n"); return -EBUSY;
}
rc = qed_mcp_bist_register_test(p_hwfn, p_ptt);
qed_ptt_release(p_hwfn, p_ptt); if (rc) break;
}
return rc;
}
int qed_selftest_clock(struct qed_dev *cdev)
{ struct qed_hwfn *p_hwfn; struct qed_ptt *p_ptt; int rc = 0, i;
/* although performed by MCP, this test is per engine */
for_each_hwfn(cdev, i) {
p_hwfn = &cdev->hwfns[i];
p_ptt = qed_ptt_acquire(p_hwfn); if (!p_ptt) {
DP_ERR(p_hwfn, "failed to acquire ptt\n"); return -EBUSY;
}
rc = qed_mcp_bist_clock_test(p_hwfn, p_ptt);
qed_ptt_release(p_hwfn, p_ptt); if (rc) break;
}
if (!p_ptt) {
DP_ERR(p_hwfn, "failed to acquire ptt\n"); return -EBUSY;
}
/* Acquire from MFW the amount of available images */
rc = qed_mcp_bist_nvm_get_num_images(p_hwfn, p_ptt, &num_images); if (rc || !num_images) {
DP_ERR(p_hwfn, "Failed getting number of images\n");
rc = -EINVAL; goto err0;
}
/* Iterate over images and validate CRC */ for (i = 0; i < num_images; i++) { /* This mailbox returns information about the image required for * reading it.
*/
rc = qed_mcp_bist_nvm_get_image_att(p_hwfn, p_ptt,
&image_att, i); if (rc) {
DP_ERR(p_hwfn, "Failed getting image index %d attributes\n",
i); goto err0;
}
/* After MFW crash dump is collected - the image's CRC stops * being valid.
*/ if (image_att.image_type == NVM_TYPE_MDUMP) continue;
DP_VERBOSE(p_hwfn, QED_MSG_SP, "image index %d, size %x\n",
i, image_att.len);
/* Allocate a buffer for holding the nvram image */
buf = kzalloc(image_att.len, GFP_KERNEL); if (!buf) {
rc = -ENOMEM; goto err0;
}
/* Read image into buffer */
rc = qed_mcp_nvm_read(p_hwfn->cdev, image_att.nvm_start_addr,
buf, image_att.len); if (rc) {
DP_ERR(p_hwfn, "Failed reading image index %d from nvm.\n", i); goto err1;
}
/* Convert the buffer into big-endian format (excluding the * closing 4 bytes of CRC).
*/ for (j = 0; j < image_att.len - 4; j += 4) {
val = cpu_to_be32(*(u32 *)&buf[j]);
*(u32 *)&buf[j] = (__force u32)val;
}
/* Calc CRC for the "actual" image buffer, i.e. not including * the last 4 CRC bytes.
*/
nvm_crc = *(u32 *)(buf + image_att.len - 4);
calc_crc = crc32(0xffffffff, buf, image_att.len - 4);
calc_crc = (__force u32)~cpu_to_be32(calc_crc);
DP_VERBOSE(p_hwfn, QED_MSG_SP, "nvm crc 0x%x, calc_crc 0x%x\n", nvm_crc, calc_crc);
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