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qed: Support NVM-image reading API

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Storage drivers require images from the nvram in boot-from-SAN
scenarios. This provides the necessary API between qed and the
protocol drivers to perform such reads.

Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Mintz, Yuval 2017-06-02 08:58:32 +03:00 • committed by David S. Miller
parent 3c5da94278
commit 20675b37ee
4 changed files with 144 additions and 0 deletions
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18
include/linux/qed/qed_if.h
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@ -156,6 +156,11 @@ struct qed_dcbx_get {
struct qed_dcbx_admin_params local;
};
enum qed_nvm_images {
QED_NVM_IMAGE_ISCSI_CFG,
QED_NVM_IMAGE_FCOE_CFG,
};
enum qed_led_mode {
QED_LED_MODE_OFF,
QED_LED_MODE_ON,
@ -630,6 +635,19 @@ struct qed_common_ops {
void (*chain_free)(struct qed_dev *cdev,
struct qed_chain *p_chain);
/**
* @brief nvm_get_image - reads an entire image from nvram
*
* @param cdev
* @param type - type of the request nvram image
* @param buf - preallocated buffer to fill with the image
* @param len - length of the allocated buffer
*
* @return 0 on success, error otherwise
*/
int (*nvm_get_image)(struct qed_dev *cdev,
enum qed_nvm_images type, u8 *buf, u16 len);
/**
* @brief get_coalesce - Get coalesce parameters in usec
*