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Set target function register before checking for busy #213

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Set target function register before checking for busy #213

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8 changes: 4 additions & 4 deletions QDMA/DPDK/drivers/net/qdma/qdma_access/qdma_mbox_protocol.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1964,14 +1964,14 @@ int qdma_mbox_send(void *dev_hndl, uint8_t is_vf, uint32_t *raw_data)
uint16_t dst_func_id = msg->hdr.dst_func_id;
uint32_t mbox_base = get_mbox_offset(dev_hndl, is_vf);

v = qdma_reg_read(dev_hndl, mbox_base + MBOX_FN_STATUS);
if (v & F_MBOX_FN_STATUS_OUT_MSG)
return -QDMA_ERR_MBOX_SEND_BUSY;

if (!is_vf)
qdma_reg_write(dev_hndl, mbox_base + MBOX_FN_TARGET,
V_MBOX_FN_TARGET_ID(dst_func_id));

v = qdma_reg_read(dev_hndl, mbox_base + MBOX_FN_STATUS);
if (v & F_MBOX_FN_STATUS_OUT_MSG)
return -QDMA_ERR_MBOX_SEND_BUSY;

for (i = 0; i < MBOX_MSG_REG_MAX; i++, reg += MBOX_MSG_STEP)
qdma_reg_write(dev_hndl, mbox_base + reg, raw_data[i]);

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8 changes: 4 additions & 4 deletions QDMA/linux-kernel/driver/libqdma/qdma_access/qdma_mbox_protocol.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1948,14 +1948,14 @@ int qdma_mbox_send(void *dev_hndl, uint8_t is_vf, uint32_t *raw_data)
uint16_t dst_func_id = msg->hdr.dst_func_id;
uint32_t mbox_base = get_mbox_offset(dev_hndl, is_vf);

v = qdma_reg_read(dev_hndl, mbox_base + MBOX_FN_STATUS);
if (v & F_MBOX_FN_STATUS_OUT_MSG)
return -QDMA_ERR_MBOX_SEND_BUSY;

if (!is_vf)
qdma_reg_write(dev_hndl, mbox_base + MBOX_FN_TARGET,
V_MBOX_FN_TARGET_ID(dst_func_id));

v = qdma_reg_read(dev_hndl, mbox_base + MBOX_FN_STATUS);
if (v & F_MBOX_FN_STATUS_OUT_MSG)
return -QDMA_ERR_MBOX_SEND_BUSY;

for (i = 0; i < MBOX_MSG_REG_MAX; i++, reg += MBOX_MSG_STEP)
qdma_reg_write(dev_hndl, mbox_base + reg, raw_data[i]);

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