aboutsummaryrefslogtreecommitdiff
path: root/sys/dev/ixl/i40e_nvm.c
diff options
context:
space:
mode:
authorJack F Vogel <jfv@FreeBSD.org>2015-01-12 18:32:45 +0000
committerJack F Vogel <jfv@FreeBSD.org>2015-01-12 18:32:45 +0000
commitf247dc252337766d1a423ce46d43879a62a742fa (patch)
tree3415a1cb41418eba84f5b8d421ea2d6837eaf562 /sys/dev/ixl/i40e_nvm.c
parent4b12fb6103ac9323d2aaa89f6c7835d62c2c0996 (diff)
downloadsrc-f247dc252337766d1a423ce46d43879a62a742fa.tar.gz
src-f247dc252337766d1a423ce46d43879a62a742fa.zip
Update to the shared code for Intel I40E drivers in preparation
for the ixl 1.3.0 and ixlv 1.2.0 revisions. MFC after: 1 week
Notes
Notes: svn path=/head/; revision=277082
Diffstat (limited to 'sys/dev/ixl/i40e_nvm.c')
-rwxr-xr-xsys/dev/ixl/i40e_nvm.c284
1 files changed, 240 insertions, 44 deletions
diff --git a/sys/dev/ixl/i40e_nvm.c b/sys/dev/ixl/i40e_nvm.c
index 52d860291f33..35001a58e4e4 100755
--- a/sys/dev/ixl/i40e_nvm.c
+++ b/sys/dev/ixl/i40e_nvm.c
@@ -34,6 +34,18 @@
#include "i40e_prototype.h"
+enum i40e_status_code i40e_read_nvm_word_srctl(struct i40e_hw *hw, u16 offset,
+ u16 *data);
+enum i40e_status_code i40e_read_nvm_word_aq(struct i40e_hw *hw, u16 offset,
+ u16 *data);
+enum i40e_status_code i40e_read_nvm_buffer_srctl(struct i40e_hw *hw, u16 offset,
+ u16 *words, u16 *data);
+enum i40e_status_code i40e_read_nvm_buffer_aq(struct i40e_hw *hw, u16 offset,
+ u16 *words, u16 *data);
+enum i40e_status_code i40e_read_nvm_aq(struct i40e_hw *hw, u8 module_pointer,
+ u32 offset, u16 words, void *data,
+ bool last_command);
+
/**
* i40e_init_nvm_ops - Initialize NVM function pointers
* @hw: pointer to the HW structure
@@ -71,7 +83,7 @@ enum i40e_status_code i40e_init_nvm(struct i40e_hw *hw)
} else { /* Blank programming mode */
nvm->blank_nvm_mode = TRUE;
ret_code = I40E_ERR_NVM_BLANK_MODE;
- DEBUGOUT("NVM init error: unsupported blank mode.\n");
+ i40e_debug(hw, I40E_DEBUG_NVM, "NVM init error: unsupported blank mode.\n");
}
return ret_code;
@@ -90,7 +102,7 @@ enum i40e_status_code i40e_acquire_nvm(struct i40e_hw *hw,
{
enum i40e_status_code ret_code = I40E_SUCCESS;
u64 gtime, timeout;
- u64 time = 0;
+ u64 time_left = 0;
DEBUGFUNC("i40e_acquire_nvm");
@@ -98,40 +110,39 @@ enum i40e_status_code i40e_acquire_nvm(struct i40e_hw *hw,
goto i40e_i40e_acquire_nvm_exit;
ret_code = i40e_aq_request_resource(hw, I40E_NVM_RESOURCE_ID, access,
- 0, &time, NULL);
+ 0, &time_left, NULL);
/* Reading the Global Device Timer */
gtime = rd32(hw, I40E_GLVFGEN_TIMER);
/* Store the timeout */
- hw->nvm.hw_semaphore_timeout = I40E_MS_TO_GTIME(time) + gtime;
+ hw->nvm.hw_semaphore_timeout = I40E_MS_TO_GTIME(time_left) + gtime;
- if (ret_code != I40E_SUCCESS) {
- /* Set the polling timeout */
- if (time > I40E_MAX_NVM_TIMEOUT)
- timeout = I40E_MS_TO_GTIME(I40E_MAX_NVM_TIMEOUT)
- + gtime;
- else
- timeout = hw->nvm.hw_semaphore_timeout;
+ if (ret_code)
+ i40e_debug(hw, I40E_DEBUG_NVM,
+ "NVM acquire type %d failed time_left=%llu ret=%d aq_err=%d\n",
+ access, time_left, ret_code, hw->aq.asq_last_status);
+
+ if (ret_code && time_left) {
/* Poll until the current NVM owner timeouts */
- while (gtime < timeout) {
+ timeout = I40E_MS_TO_GTIME(I40E_MAX_NVM_TIMEOUT) + gtime;
+ while ((gtime < timeout) && time_left) {
i40e_msec_delay(10);
+ gtime = rd32(hw, I40E_GLVFGEN_TIMER);
ret_code = i40e_aq_request_resource(hw,
I40E_NVM_RESOURCE_ID,
- access, 0, &time,
+ access, 0, &time_left,
NULL);
if (ret_code == I40E_SUCCESS) {
hw->nvm.hw_semaphore_timeout =
- I40E_MS_TO_GTIME(time) + gtime;
+ I40E_MS_TO_GTIME(time_left) + gtime;
break;
}
- gtime = rd32(hw, I40E_GLVFGEN_TIMER);
}
if (ret_code != I40E_SUCCESS) {
hw->nvm.hw_semaphore_timeout = 0;
- hw->nvm.hw_semaphore_wait =
- I40E_MS_TO_GTIME(time) + gtime;
- DEBUGOUT1("NVM acquire timed out, wait %llu ms before trying again.\n",
- time);
+ i40e_debug(hw, I40E_DEBUG_NVM,
+ "NVM acquire timed out, wait %llu ms before trying again. status=%d aq_err=%d\n",
+ time_left, ret_code, hw->aq.asq_last_status);
}
}
@@ -176,7 +187,7 @@ static enum i40e_status_code i40e_poll_sr_srctl_done_bit(struct i40e_hw *hw)
i40e_usec_delay(5);
}
if (ret_code == I40E_ERR_TIMEOUT)
- DEBUGOUT("Done bit in GLNVM_SRCTL not set");
+ i40e_debug(hw, I40E_DEBUG_NVM, "Done bit in GLNVM_SRCTL not set");
return ret_code;
}
@@ -191,13 +202,29 @@ static enum i40e_status_code i40e_poll_sr_srctl_done_bit(struct i40e_hw *hw)
enum i40e_status_code i40e_read_nvm_word(struct i40e_hw *hw, u16 offset,
u16 *data)
{
+ return i40e_read_nvm_word_srctl(hw, offset, data);
+}
+
+/**
+ * i40e_read_nvm_word_srctl - Reads Shadow RAM via SRCTL register
+ * @hw: pointer to the HW structure
+ * @offset: offset of the Shadow RAM word to read (0x000000 - 0x001FFF)
+ * @data: word read from the Shadow RAM
+ *
+ * Reads one 16 bit word from the Shadow RAM using the GLNVM_SRCTL register.
+ **/
+enum i40e_status_code i40e_read_nvm_word_srctl(struct i40e_hw *hw, u16 offset,
+ u16 *data)
+{
enum i40e_status_code ret_code = I40E_ERR_TIMEOUT;
u32 sr_reg;
- DEBUGFUNC("i40e_read_nvm_srctl");
+ DEBUGFUNC("i40e_read_nvm_word_srctl");
if (offset >= hw->nvm.sr_size) {
- DEBUGOUT("NVM read error: Offset beyond Shadow RAM limit.\n");
+ i40e_debug(hw, I40E_DEBUG_NVM,
+ "NVM read error: Offset %d beyond Shadow RAM limit %d\n",
+ offset, hw->nvm.sr_size);
ret_code = I40E_ERR_PARAM;
goto read_nvm_exit;
}
@@ -220,14 +247,36 @@ enum i40e_status_code i40e_read_nvm_word(struct i40e_hw *hw, u16 offset,
}
}
if (ret_code != I40E_SUCCESS)
- DEBUGOUT1("NVM read error: Couldn't access Shadow RAM address: 0x%x\n",
- offset);
+ i40e_debug(hw, I40E_DEBUG_NVM,
+ "NVM read error: Couldn't access Shadow RAM address: 0x%x\n",
+ offset);
read_nvm_exit:
return ret_code;
}
/**
+ * i40e_read_nvm_word_aq - Reads Shadow RAM via AQ
+ * @hw: pointer to the HW structure
+ * @offset: offset of the Shadow RAM word to read (0x000000 - 0x001FFF)
+ * @data: word read from the Shadow RAM
+ *
+ * Reads one 16 bit word from the Shadow RAM using the GLNVM_SRCTL register.
+ **/
+enum i40e_status_code i40e_read_nvm_word_aq(struct i40e_hw *hw, u16 offset,
+ u16 *data)
+{
+ enum i40e_status_code ret_code = I40E_ERR_TIMEOUT;
+
+ DEBUGFUNC("i40e_read_nvm_word_aq");
+
+ ret_code = i40e_read_nvm_aq(hw, 0x0, offset, 1, data, TRUE);
+ *data = LE16_TO_CPU(*(__le16 *)data);
+
+ return ret_code;
+}
+
+/**
* i40e_read_nvm_buffer - Reads Shadow RAM buffer
* @hw: pointer to the HW structure
* @offset: offset of the Shadow RAM word to read (0x000000 - 0x001FFF).
@@ -241,15 +290,32 @@ read_nvm_exit:
enum i40e_status_code i40e_read_nvm_buffer(struct i40e_hw *hw, u16 offset,
u16 *words, u16 *data)
{
+ return i40e_read_nvm_buffer_srctl(hw, offset, words, data);
+}
+
+/**
+ * i40e_read_nvm_buffer_srctl - Reads Shadow RAM buffer via SRCTL register
+ * @hw: pointer to the HW structure
+ * @offset: offset of the Shadow RAM word to read (0x000000 - 0x001FFF).
+ * @words: (in) number of words to read; (out) number of words actually read
+ * @data: words read from the Shadow RAM
+ *
+ * Reads 16 bit words (data buffer) from the SR using the i40e_read_nvm_srrd()
+ * method. The buffer read is preceded by the NVM ownership take
+ * and followed by the release.
+ **/
+enum i40e_status_code i40e_read_nvm_buffer_srctl(struct i40e_hw *hw, u16 offset,
+ u16 *words, u16 *data)
+{
enum i40e_status_code ret_code = I40E_SUCCESS;
u16 index, word;
- DEBUGFUNC("i40e_read_nvm_buffer");
+ DEBUGFUNC("i40e_read_nvm_buffer_srctl");
/* Loop thru the selected region */
for (word = 0; word < *words; word++) {
index = offset + word;
- ret_code = i40e_read_nvm_word(hw, index, &data[word]);
+ ret_code = i40e_read_nvm_word_srctl(hw, index, &data[word]);
if (ret_code != I40E_SUCCESS)
break;
}
@@ -259,6 +325,114 @@ enum i40e_status_code i40e_read_nvm_buffer(struct i40e_hw *hw, u16 offset,
return ret_code;
}
+
+/**
+ * i40e_read_nvm_buffer_aq - Reads Shadow RAM buffer via AQ
+ * @hw: pointer to the HW structure
+ * @offset: offset of the Shadow RAM word to read (0x000000 - 0x001FFF).
+ * @words: (in) number of words to read; (out) number of words actually read
+ * @data: words read from the Shadow RAM
+ *
+ * Reads 16 bit words (data buffer) from the SR using the i40e_read_nvm_aq()
+ * method. The buffer read is preceded by the NVM ownership take
+ * and followed by the release.
+ **/
+enum i40e_status_code i40e_read_nvm_buffer_aq(struct i40e_hw *hw, u16 offset,
+ u16 *words, u16 *data)
+{
+ enum i40e_status_code ret_code;
+ u16 read_size = *words;
+ bool last_cmd = FALSE;
+ u16 words_read = 0;
+ u16 i = 0;
+
+ DEBUGFUNC("i40e_read_nvm_buffer_aq");
+
+ do {
+ /* Calculate number of bytes we should read in this step.
+ * FVL AQ do not allow to read more than one page at a time or
+ * to cross page boundaries.
+ */
+ if (offset % I40E_SR_SECTOR_SIZE_IN_WORDS)
+ read_size = min(*words,
+ (u16)(I40E_SR_SECTOR_SIZE_IN_WORDS -
+ (offset % I40E_SR_SECTOR_SIZE_IN_WORDS)));
+ else
+ read_size = min((*words - words_read),
+ I40E_SR_SECTOR_SIZE_IN_WORDS);
+
+ /* Check if this is last command, if so set proper flag */
+ if ((words_read + read_size) >= *words)
+ last_cmd = TRUE;
+
+ ret_code = i40e_read_nvm_aq(hw, 0x0, offset, read_size,
+ data + words_read, last_cmd);
+ if (ret_code != I40E_SUCCESS)
+ goto read_nvm_buffer_aq_exit;
+
+ /* Increment counter for words already read and move offset to
+ * new read location
+ */
+ words_read += read_size;
+ offset += read_size;
+ } while (words_read < *words);
+
+ for (i = 0; i < *words; i++)
+ data[i] = LE16_TO_CPU(((__le16 *)data)[i]);
+
+read_nvm_buffer_aq_exit:
+ *words = words_read;
+ return ret_code;
+}
+
+/**
+ * i40e_read_nvm_aq - Read Shadow RAM.
+ * @hw: pointer to the HW structure.
+ * @module_pointer: module pointer location in words from the NVM beginning
+ * @offset: offset in words from module start
+ * @words: number of words to write
+ * @data: buffer with words to write to the Shadow RAM
+ * @last_command: tells the AdminQ that this is the last command
+ *
+ * Writes a 16 bit words buffer to the Shadow RAM using the admin command.
+ **/
+enum i40e_status_code i40e_read_nvm_aq(struct i40e_hw *hw, u8 module_pointer,
+ u32 offset, u16 words, void *data,
+ bool last_command)
+{
+ enum i40e_status_code ret_code = I40E_ERR_NVM;
+
+ DEBUGFUNC("i40e_read_nvm_aq");
+
+ /* Here we are checking the SR limit only for the flat memory model.
+ * We cannot do it for the module-based model, as we did not acquire
+ * the NVM resource yet (we cannot get the module pointer value).
+ * Firmware will check the module-based model.
+ */
+ if ((offset + words) > hw->nvm.sr_size)
+ i40e_debug(hw, I40E_DEBUG_NVM,
+ "NVM write error: offset %d beyond Shadow RAM limit %d\n",
+ (offset + words), hw->nvm.sr_size);
+ else if (words > I40E_SR_SECTOR_SIZE_IN_WORDS)
+ /* We can write only up to 4KB (one sector), in one AQ write */
+ i40e_debug(hw, I40E_DEBUG_NVM,
+ "NVM write fail error: tried to write %d words, limit is %d.\n",
+ words, I40E_SR_SECTOR_SIZE_IN_WORDS);
+ else if (((offset + (words - 1)) / I40E_SR_SECTOR_SIZE_IN_WORDS)
+ != (offset / I40E_SR_SECTOR_SIZE_IN_WORDS))
+ /* A single write cannot spread over two sectors */
+ i40e_debug(hw, I40E_DEBUG_NVM,
+ "NVM write error: cannot spread over two sectors in a single write offset=%d words=%d\n",
+ offset, words);
+ else
+ ret_code = i40e_aq_read_nvm(hw, module_pointer,
+ 2 * offset, /*bytes*/
+ 2 * words, /*bytes*/
+ data, last_command, NULL);
+
+ return ret_code;
+}
+
/**
* i40e_write_nvm_aq - Writes Shadow RAM.
* @hw: pointer to the HW structure.
@@ -317,6 +491,8 @@ enum i40e_status_code i40e_write_nvm_word(struct i40e_hw *hw, u32 offset,
{
DEBUGFUNC("i40e_write_nvm_word");
+ *((__le16 *)data) = CPU_TO_LE16(*((u16 *)data));
+
/* Value 0x00 below means that we treat SR as a flat mem */
return i40e_write_nvm_aq(hw, 0x00, offset, 1, data, FALSE);
}
@@ -338,8 +514,15 @@ enum i40e_status_code i40e_write_nvm_buffer(struct i40e_hw *hw,
u8 module_pointer, u32 offset,
u16 words, void *data)
{
+ __le16 *le_word_ptr = (__le16 *)data;
+ u16 *word_ptr = (u16 *)data;
+ u32 i = 0;
+
DEBUGFUNC("i40e_write_nvm_buffer");
+ for (i = 0; i < words; i++)
+ le_word_ptr[i] = CPU_TO_LE16(word_ptr[i]);
+
/* Here we will only write one buffer as the size of the modules
* mirrored in the Shadow RAM is always less than 4K.
*/
@@ -360,14 +543,21 @@ enum i40e_status_code i40e_write_nvm_buffer(struct i40e_hw *hw,
enum i40e_status_code i40e_calc_nvm_checksum(struct i40e_hw *hw, u16 *checksum)
{
enum i40e_status_code ret_code = I40E_SUCCESS;
+ struct i40e_virt_mem vmem;
u16 pcie_alt_module = 0;
u16 checksum_local = 0;
u16 vpd_module = 0;
- u16 word = 0;
- u32 i = 0;
+ u16 *data;
+ u16 i = 0;
DEBUGFUNC("i40e_calc_nvm_checksum");
+ ret_code = i40e_allocate_virt_mem(hw, &vmem,
+ I40E_SR_SECTOR_SIZE_IN_WORDS * sizeof(u16));
+ if (ret_code)
+ goto i40e_calc_nvm_checksum_exit;
+ data = (u16 *)vmem.va;
+
/* read pointer to VPD area */
ret_code = i40e_read_nvm_word(hw, I40E_SR_VPD_PTR, &vpd_module);
if (ret_code != I40E_SUCCESS) {
@@ -377,7 +567,7 @@ enum i40e_status_code i40e_calc_nvm_checksum(struct i40e_hw *hw, u16 *checksum)
/* read pointer to PCIe Alt Auto-load module */
ret_code = i40e_read_nvm_word(hw, I40E_SR_PCIE_ALT_AUTO_LOAD_PTR,
- &pcie_alt_module);
+ &pcie_alt_module);
if (ret_code != I40E_SUCCESS) {
ret_code = I40E_ERR_NVM_CHECKSUM;
goto i40e_calc_nvm_checksum_exit;
@@ -387,33 +577,39 @@ enum i40e_status_code i40e_calc_nvm_checksum(struct i40e_hw *hw, u16 *checksum)
* except the VPD and PCIe ALT Auto-load modules
*/
for (i = 0; i < hw->nvm.sr_size; i++) {
+ /* Read SR page */
+ if ((i % I40E_SR_SECTOR_SIZE_IN_WORDS) == 0) {
+ u16 words = I40E_SR_SECTOR_SIZE_IN_WORDS;
+ ret_code = i40e_read_nvm_buffer(hw, i, &words, data);
+ if (ret_code != I40E_SUCCESS) {
+ ret_code = I40E_ERR_NVM_CHECKSUM;
+ goto i40e_calc_nvm_checksum_exit;
+ }
+ }
+
/* Skip Checksum word */
if (i == I40E_SR_SW_CHECKSUM_WORD)
- i++;
+ continue;
/* Skip VPD module (convert byte size to word count) */
- if (i == (u32)vpd_module) {
- i += (I40E_SR_VPD_MODULE_MAX_SIZE / 2);
- if (i >= hw->nvm.sr_size)
- break;
+ if ((i >= (u32)vpd_module) &&
+ (i < ((u32)vpd_module +
+ (I40E_SR_VPD_MODULE_MAX_SIZE / 2)))) {
+ continue;
}
/* Skip PCIe ALT module (convert byte size to word count) */
- if (i == (u32)pcie_alt_module) {
- i += (I40E_SR_PCIE_ALT_MODULE_MAX_SIZE / 2);
- if (i >= hw->nvm.sr_size)
- break;
+ if ((i >= (u32)pcie_alt_module) &&
+ (i < ((u32)pcie_alt_module +
+ (I40E_SR_PCIE_ALT_MODULE_MAX_SIZE / 2)))) {
+ continue;
}
- ret_code = i40e_read_nvm_word(hw, (u16)i, &word);
- if (ret_code != I40E_SUCCESS) {
- ret_code = I40E_ERR_NVM_CHECKSUM;
- goto i40e_calc_nvm_checksum_exit;
- }
- checksum_local += word;
+ checksum_local += data[i % I40E_SR_SECTOR_SIZE_IN_WORDS];
}
*checksum = (u16)I40E_SR_SW_CHECKSUM_BASE - checksum_local;
i40e_calc_nvm_checksum_exit:
+ i40e_free_virt_mem(hw, &vmem);
return ret_code;
}