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path: root/drivers/net/ethernet/intel/i40evf/i40e_adminq.c
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Diffstat (limited to 'drivers/net/ethernet/intel/i40evf/i40e_adminq.c')
-rw-r--r--drivers/net/ethernet/intel/i40evf/i40e_adminq.c119
1 files changed, 64 insertions, 55 deletions
diff --git a/drivers/net/ethernet/intel/i40evf/i40e_adminq.c b/drivers/net/ethernet/intel/i40evf/i40e_adminq.c
index eb67cce3e8f9..003006033614 100644
--- a/drivers/net/ethernet/intel/i40evf/i40e_adminq.c
+++ b/drivers/net/ethernet/intel/i40evf/i40e_adminq.c
@@ -53,16 +53,24 @@ static void i40e_adminq_init_regs(struct i40e_hw *hw)
hw->aq.asq.tail = I40E_VF_ATQT1;
hw->aq.asq.head = I40E_VF_ATQH1;
hw->aq.asq.len = I40E_VF_ATQLEN1;
+ hw->aq.asq.bal = I40E_VF_ATQBAL1;
+ hw->aq.asq.bah = I40E_VF_ATQBAH1;
hw->aq.arq.tail = I40E_VF_ARQT1;
hw->aq.arq.head = I40E_VF_ARQH1;
hw->aq.arq.len = I40E_VF_ARQLEN1;
+ hw->aq.arq.bal = I40E_VF_ARQBAL1;
+ hw->aq.arq.bah = I40E_VF_ARQBAH1;
} else {
hw->aq.asq.tail = I40E_PF_ATQT;
hw->aq.asq.head = I40E_PF_ATQH;
hw->aq.asq.len = I40E_PF_ATQLEN;
+ hw->aq.asq.bal = I40E_PF_ATQBAL;
+ hw->aq.asq.bah = I40E_PF_ATQBAH;
hw->aq.arq.tail = I40E_PF_ARQT;
hw->aq.arq.head = I40E_PF_ARQH;
hw->aq.arq.len = I40E_PF_ARQLEN;
+ hw->aq.arq.bal = I40E_PF_ARQBAL;
+ hw->aq.arq.bah = I40E_PF_ARQBAH;
}
}
@@ -294,27 +302,18 @@ static i40e_status i40e_config_asq_regs(struct i40e_hw *hw)
i40e_status ret_code = 0;
u32 reg = 0;
- if (hw->mac.type == I40E_MAC_VF) {
- /* configure the transmit queue */
- wr32(hw, I40E_VF_ATQBAH1,
- upper_32_bits(hw->aq.asq.desc_buf.pa));
- wr32(hw, I40E_VF_ATQBAL1,
- lower_32_bits(hw->aq.asq.desc_buf.pa));
- wr32(hw, I40E_VF_ATQLEN1, (hw->aq.num_asq_entries |
- I40E_VF_ATQLEN1_ATQENABLE_MASK));
- reg = rd32(hw, I40E_VF_ATQBAL1);
- } else {
- /* configure the transmit queue */
- wr32(hw, I40E_PF_ATQBAH,
- upper_32_bits(hw->aq.asq.desc_buf.pa));
- wr32(hw, I40E_PF_ATQBAL,
- lower_32_bits(hw->aq.asq.desc_buf.pa));
- wr32(hw, I40E_PF_ATQLEN, (hw->aq.num_asq_entries |
- I40E_PF_ATQLEN_ATQENABLE_MASK));
- reg = rd32(hw, I40E_PF_ATQBAL);
- }
+ /* Clear Head and Tail */
+ wr32(hw, hw->aq.asq.head, 0);
+ wr32(hw, hw->aq.asq.tail, 0);
+
+ /* set starting point */
+ wr32(hw, hw->aq.asq.len, (hw->aq.num_asq_entries |
+ I40E_PF_ATQLEN_ATQENABLE_MASK));
+ wr32(hw, hw->aq.asq.bal, lower_32_bits(hw->aq.asq.desc_buf.pa));
+ wr32(hw, hw->aq.asq.bah, upper_32_bits(hw->aq.asq.desc_buf.pa));
/* Check one register to verify that config was applied */
+ reg = rd32(hw, hw->aq.asq.bal);
if (reg != lower_32_bits(hw->aq.asq.desc_buf.pa))
ret_code = I40E_ERR_ADMIN_QUEUE_ERROR;
@@ -332,30 +331,21 @@ static i40e_status i40e_config_arq_regs(struct i40e_hw *hw)
i40e_status ret_code = 0;
u32 reg = 0;
- if (hw->mac.type == I40E_MAC_VF) {
- /* configure the receive queue */
- wr32(hw, I40E_VF_ARQBAH1,
- upper_32_bits(hw->aq.arq.desc_buf.pa));
- wr32(hw, I40E_VF_ARQBAL1,
- lower_32_bits(hw->aq.arq.desc_buf.pa));
- wr32(hw, I40E_VF_ARQLEN1, (hw->aq.num_arq_entries |
- I40E_VF_ARQLEN1_ARQENABLE_MASK));
- reg = rd32(hw, I40E_VF_ARQBAL1);
- } else {
- /* configure the receive queue */
- wr32(hw, I40E_PF_ARQBAH,
- upper_32_bits(hw->aq.arq.desc_buf.pa));
- wr32(hw, I40E_PF_ARQBAL,
- lower_32_bits(hw->aq.arq.desc_buf.pa));
- wr32(hw, I40E_PF_ARQLEN, (hw->aq.num_arq_entries |
- I40E_PF_ARQLEN_ARQENABLE_MASK));
- reg = rd32(hw, I40E_PF_ARQBAL);
- }
+ /* Clear Head and Tail */
+ wr32(hw, hw->aq.arq.head, 0);
+ wr32(hw, hw->aq.arq.tail, 0);
+
+ /* set starting point */
+ wr32(hw, hw->aq.arq.len, (hw->aq.num_arq_entries |
+ I40E_PF_ARQLEN_ARQENABLE_MASK));
+ wr32(hw, hw->aq.arq.bal, lower_32_bits(hw->aq.arq.desc_buf.pa));
+ wr32(hw, hw->aq.arq.bah, upper_32_bits(hw->aq.arq.desc_buf.pa));
/* Update tail in the HW to post pre-allocated buffers */
wr32(hw, hw->aq.arq.tail, hw->aq.num_arq_entries - 1);
/* Check one register to verify that config was applied */
+ reg = rd32(hw, hw->aq.arq.bal);
if (reg != lower_32_bits(hw->aq.arq.desc_buf.pa))
ret_code = I40E_ERR_ADMIN_QUEUE_ERROR;
@@ -497,6 +487,8 @@ static i40e_status i40e_shutdown_asq(struct i40e_hw *hw)
wr32(hw, hw->aq.asq.head, 0);
wr32(hw, hw->aq.asq.tail, 0);
wr32(hw, hw->aq.asq.len, 0);
+ wr32(hw, hw->aq.asq.bal, 0);
+ wr32(hw, hw->aq.asq.bah, 0);
/* make sure lock is available */
mutex_lock(&hw->aq.asq_mutex);
@@ -528,6 +520,8 @@ static i40e_status i40e_shutdown_arq(struct i40e_hw *hw)
wr32(hw, hw->aq.arq.head, 0);
wr32(hw, hw->aq.arq.tail, 0);
wr32(hw, hw->aq.arq.len, 0);
+ wr32(hw, hw->aq.arq.bal, 0);
+ wr32(hw, hw->aq.arq.bah, 0);
/* make sure lock is available */
mutex_lock(&hw->aq.arq_mutex);
@@ -573,6 +567,9 @@ i40e_status i40evf_init_adminq(struct i40e_hw *hw)
/* Set up register offsets */
i40e_adminq_init_regs(hw);
+ /* setup ASQ command write back timeout */
+ hw->aq.asq_cmd_timeout = I40E_ASQ_CMD_TIMEOUT;
+
/* allocate the ASQ */
ret_code = i40e_init_asq(hw);
if (ret_code)
@@ -630,6 +627,10 @@ static u16 i40e_clean_asq(struct i40e_hw *hw)
desc = I40E_ADMINQ_DESC(*asq, ntc);
details = I40E_ADMINQ_DETAILS(*asq, ntc);
while (rd32(hw, hw->aq.asq.head) != ntc) {
+ i40e_debug(hw, I40E_DEBUG_AQ_MESSAGE,
+ "%s: ntc %d head %d.\n", __func__, ntc,
+ rd32(hw, hw->aq.asq.head));
+
if (details->callback) {
I40E_ADMINQ_CALLBACK cb_func =
(I40E_ADMINQ_CALLBACK)details->callback;
@@ -690,17 +691,20 @@ i40e_status i40evf_asq_send_command(struct i40e_hw *hw,
struct i40e_aq_desc *desc_on_ring;
bool cmd_completed = false;
u16 retval = 0;
+ u32 val = 0;
- if (hw->aq.asq.count == 0) {
+ val = rd32(hw, hw->aq.asq.head);
+ if (val >= hw->aq.num_asq_entries) {
i40e_debug(hw, I40E_DEBUG_AQ_MESSAGE,
- "AQTX: Admin queue not initialized.\n");
+ "AQTX: head overrun at %d\n", val);
status = I40E_ERR_QUEUE_EMPTY;
goto asq_send_command_exit;
}
- if (i40e_is_nvm_update_op(desc) && hw->aq.nvm_busy) {
- i40e_debug(hw, I40E_DEBUG_AQ_MESSAGE, "AQTX: NVM busy.\n");
- status = I40E_ERR_NVM;
+ if (hw->aq.asq.count == 0) {
+ i40e_debug(hw, I40E_DEBUG_AQ_MESSAGE,
+ "AQTX: Admin queue not initialized.\n");
+ status = I40E_ERR_QUEUE_EMPTY;
goto asq_send_command_exit;
}
@@ -783,6 +787,7 @@ i40e_status i40evf_asq_send_command(struct i40e_hw *hw,
}
/* bump the tail */
+ i40e_debug(hw, I40E_DEBUG_AQ_MESSAGE, "AQTX: desc and buffer:\n");
i40evf_debug_aq(hw, I40E_DEBUG_AQ_COMMAND, (void *)desc_on_ring, buff);
(hw->aq.asq.next_to_use)++;
if (hw->aq.asq.next_to_use == hw->aq.asq.count)
@@ -806,7 +811,7 @@ i40e_status i40evf_asq_send_command(struct i40e_hw *hw,
/* ugh! delay while spin_lock */
udelay(delay_len);
total_delay += delay_len;
- } while (total_delay < I40E_ASQ_CMD_TIMEOUT);
+ } while (total_delay < hw->aq.asq_cmd_timeout);
}
/* if ready, copy the desc back to temp */
@@ -820,6 +825,7 @@ i40e_status i40evf_asq_send_command(struct i40e_hw *hw,
I40E_DEBUG_AQ_MESSAGE,
"AQTX: Command completed with error 0x%X.\n",
retval);
+
/* strip off FW internal code */
retval &= 0xff;
}
@@ -834,6 +840,10 @@ i40e_status i40evf_asq_send_command(struct i40e_hw *hw,
if (i40e_is_nvm_update_op(desc))
hw->aq.nvm_busy = true;
+ i40e_debug(hw, I40E_DEBUG_AQ_MESSAGE,
+ "AQTX: desc and buffer writeback:\n");
+ i40evf_debug_aq(hw, I40E_DEBUG_AQ_COMMAND, (void *)desc, buff);
+
/* update the error if time out occurred */
if ((!cmd_completed) &&
(!details->async && !details->postpone)) {
@@ -905,10 +915,6 @@ i40e_status i40evf_clean_arq_element(struct i40e_hw *hw,
/* now clean the next descriptor */
desc = I40E_ADMINQ_DESC(hw->aq.arq, ntc);
desc_idx = ntc;
- i40evf_debug_aq(hw,
- I40E_DEBUG_AQ_COMMAND,
- (void *)desc,
- hw->aq.arq.r.arq_bi[desc_idx].va);
flags = le16_to_cpu(desc->flags);
if (flags & I40E_AQ_FLAG_ERR) {
@@ -919,18 +925,21 @@ i40e_status i40evf_clean_arq_element(struct i40e_hw *hw,
I40E_DEBUG_AQ_MESSAGE,
"AQRX: Event received with error 0x%X.\n",
hw->aq.arq_last_status);
- } else {
- e->desc = *desc;
- datalen = le16_to_cpu(desc->datalen);
- e->msg_size = min(datalen, e->msg_size);
- if (e->msg_buf != NULL && (e->msg_size != 0))
- memcpy(e->msg_buf, hw->aq.arq.r.arq_bi[desc_idx].va,
- e->msg_size);
}
+ e->desc = *desc;
+ datalen = le16_to_cpu(desc->datalen);
+ e->msg_size = min(datalen, e->msg_size);
+ if (e->msg_buf != NULL && (e->msg_size != 0))
+ memcpy(e->msg_buf, hw->aq.arq.r.arq_bi[desc_idx].va,
+ e->msg_size);
+
if (i40e_is_nvm_update_op(&e->desc))
hw->aq.nvm_busy = false;
+ i40e_debug(hw, I40E_DEBUG_AQ_MESSAGE, "AQRX: desc and buffer:\n");
+ i40evf_debug_aq(hw, I40E_DEBUG_AQ_COMMAND, (void *)desc, e->msg_buf);
+
/* Restore the original datalen and buffer address in the desc,
* FW updates datalen to indicate the event message
* size
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.