Merge branch '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue

Tony Nguyen says:

====================
100GbE Intel Wired LAN Driver Updates 2021-02-05

This series contains updates to ice driver only.

Jake adds adds reporting of timeout length during devlink flash and
implements support to report devlink info regarding the version of
firmware that is stored (downloaded) to the device, but is not yet active.
ice_devlink_info_get will report "stored" versions when there is no
pending flash update. Version info includes the UNDI Option ROM, the
Netlist module, and the fw.bundle_id.

Gustavo A. R. Silva replaces a one-element array to flexible-array
member.

Bruce utilizes flex_array_size() helper and removes dead code on a check
for a condition that can't occur.

v2:
* removed security revision implementation, and re-ordered patches to
account for this removal
* squashed patches implementing ice_read_flash_module to avoid patches
refactoring the implementation of a previous patch in the series
* modify ice_devlink_info_get to always report "stored" versions instead
of only reporting them when a pending flash update is ready.

* '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue:
  ice: remove dead code
  ice: use flex_array_size where possible
  ice: Replace one-element array with flexible-array member
  ice: display stored UNDI firmware version via devlink info
  ice: display stored netlist versions via devlink info
  ice: display some stored NVM versions via devlink info
  ice: introduce function for reading from flash modules
  ice: cache NVM module bank information
  ice: introduce context struct for info report
  ice: create flash_info structure and separate NVM version
  ice: report timeout length for erasing during devlink flash
====================

Link: https://lore.kernel.org/r/20210206044101.636242-1-anthony.l.nguyen@intel.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/ethernet/intel/ice/ice.h

@@ -166,7 +166,7 @@ struct ice_tc_cfg {
 struct ice_res_tracker {
 	u16 num_entries;
 	u16 end;
-	u16 list[1];
+	u16 list[];
 };
 
 struct ice_qs_cfg {

drivers/net/ethernet/intel/ice/ice_adminq_cmd.h

@@ -1334,33 +1334,6 @@ struct ice_aqc_nvm_checksum {
 	u8 rsvd2[12];
 };
 
-/* The result of netlist NVM read comes in a TLV format. The actual data
- * (netlist header) starts from word offset 1 (byte 2). The FW strips
- * out the type field from the TLV header so all the netlist fields
- * should adjust their offset value by 1 word (2 bytes) in order to map
- * their correct location.
- */
-#define ICE_AQC_NVM_LINK_TOPO_NETLIST_MOD_ID		0x11B
-#define ICE_AQC_NVM_LINK_TOPO_NETLIST_LEN_OFFSET	1
-#define ICE_AQC_NVM_LINK_TOPO_NETLIST_LEN		2 /* In bytes */
-#define ICE_AQC_NVM_NETLIST_NODE_COUNT_OFFSET		2
-#define ICE_AQC_NVM_NETLIST_NODE_COUNT_LEN		2 /* In bytes */
-#define ICE_AQC_NVM_NETLIST_NODE_COUNT_M		ICE_M(0x3FF, 0)
-#define ICE_AQC_NVM_NETLIST_ID_BLK_START_OFFSET		5
-#define ICE_AQC_NVM_NETLIST_ID_BLK_LEN			0x30 /* In words */
-
-/* netlist ID block field offsets (word offsets) */
-#define ICE_AQC_NVM_NETLIST_ID_BLK_MAJOR_VER_LOW	2
-#define ICE_AQC_NVM_NETLIST_ID_BLK_MAJOR_VER_HIGH	3
-#define ICE_AQC_NVM_NETLIST_ID_BLK_MINOR_VER_LOW	4
-#define ICE_AQC_NVM_NETLIST_ID_BLK_MINOR_VER_HIGH	5
-#define ICE_AQC_NVM_NETLIST_ID_BLK_TYPE_LOW		6
-#define ICE_AQC_NVM_NETLIST_ID_BLK_TYPE_HIGH		7
-#define ICE_AQC_NVM_NETLIST_ID_BLK_REV_LOW		8
-#define ICE_AQC_NVM_NETLIST_ID_BLK_REV_HIGH		9
-#define ICE_AQC_NVM_NETLIST_ID_BLK_SHA_HASH		0xA
-#define ICE_AQC_NVM_NETLIST_ID_BLK_CUST_VER		0x2F
-
 /* Used for NVM Set Package Data command - 0x070A */
 struct ice_aqc_nvm_pkg_data {
 	u8 reserved[3];

drivers/net/ethernet/intel/ice/ice_common.c

@@ -1653,7 +1653,7 @@ ice_aq_alloc_free_res(struct ice_hw *hw, u16 num_entries,
 	if (!buf)
 		return ICE_ERR_PARAM;
 
-	if (buf_size < (num_entries * sizeof(buf->elem[0])))
+	if (buf_size < flex_array_size(buf, elem, num_entries))
 		return ICE_ERR_PARAM;
 
 	ice_fill_dflt_direct_cmd_desc(&desc, opc);

drivers/net/ethernet/intel/ice/ice_ethtool.c

@@ -179,8 +179,8 @@ ice_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
 	struct ice_orom_info *orom;
 	struct ice_nvm_info *nvm;
 
-	nvm = &hw->nvm;
-	orom = &nvm->orom;
+	nvm = &hw->flash.nvm;
+	orom = &hw->flash.orom;
 
 	strscpy(drvinfo->driver, KBUILD_MODNAME, sizeof(drvinfo->driver));
 
@@ -188,7 +188,7 @@ ice_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
 	 * determined) which contains more pertinent information.
 	 */
 	snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
-		 "%x.%02x 0x%x %d.%d.%d", nvm->major_ver, nvm->minor_ver,
+		 "%x.%02x 0x%x %d.%d.%d", nvm->major, nvm->minor,
 		 nvm->eetrack, orom->major, orom->build, orom->patch);
 
 	strscpy(drvinfo->bus_info, pci_name(pf->pdev),
@@ -250,7 +250,7 @@ static int ice_get_eeprom_len(struct net_device *netdev)
 	struct ice_netdev_priv *np = netdev_priv(netdev);
 	struct ice_pf *pf = np->vsi->back;
 
-	return (int)pf->hw.nvm.flash_size;
+	return (int)pf->hw.flash.flash_size;
 }
 
 static int

drivers/net/ethernet/intel/ice/ice_flex_pipe.c

@@ -1525,7 +1525,7 @@ ice_pkg_buf_reserve_section(struct ice_buf_build *bld, u16 count)
 	bld->reserved_section_table_entries += count;
 
 	data_end = le16_to_cpu(buf->data_end) +
-		   (count * sizeof(buf->section_entry[0]));
+		flex_array_size(buf, section_entry, count);
 	buf->data_end = cpu_to_le16(data_end);
 
 	return 0;

drivers/net/ethernet/intel/ice/ice_fw_update.c

@@ -417,6 +417,11 @@ ice_write_nvm_module(struct ice_pf *pf, u16 module, const char *component,
 	return err;
 }
 
+/* Length in seconds to wait before timing out when erasing a flash module.
+ * Yes, erasing really can take minutes to complete.
+ */
+#define ICE_FW_ERASE_TIMEOUT 300
+
 /**
  * ice_erase_nvm_module - Erase an NVM module and await firmware completion
  * @pf: the PF data structure
@@ -449,7 +454,7 @@ ice_erase_nvm_module(struct ice_pf *pf, u16 module, const char *component,
 
 	devlink = priv_to_devlink(pf);
 
-	devlink_flash_update_status_notify(devlink, "Erasing", component, 0, 0);
+	devlink_flash_update_timeout_notify(devlink, "Erasing", component, ICE_FW_ERASE_TIMEOUT);
 
 	status = ice_aq_erase_nvm(hw, module, NULL);
 	if (status) {
@@ -461,8 +466,7 @@ ice_erase_nvm_module(struct ice_pf *pf, u16 module, const char *component,
 		goto out_notify_devlink;
 	}
 
-	/* Yes, this really can take minutes to complete */
-	err = ice_aq_wait_for_event(pf, ice_aqc_opc_nvm_erase, 300 * HZ, &event);
+	err = ice_aq_wait_for_event(pf, ice_aqc_opc_nvm_erase, ICE_FW_ERASE_TIMEOUT * HZ, &event);
 	if (err) {
 		dev_err(dev, "Timed out waiting for firmware to respond with erase completion for %s (module 0x%02x), err %d\n",
 			component, module, err);

drivers/net/ethernet/intel/ice/ice_main.c

@@ -785,15 +785,9 @@ static void ice_set_dflt_mib(struct ice_pf *pf)
 	u8 mib_type, *buf, *lldpmib = NULL;
 	u16 len, typelen, offset = 0;
 	struct ice_lldp_org_tlv *tlv;
-	struct ice_hw *hw;
+	struct ice_hw *hw = &pf->hw;
 	u32 ouisubtype;
 
-	if (!pf) {
-		dev_dbg(dev, "%s NULL pf pointer\n", __func__);
-		return;
-	}
-
-	hw = &pf->hw;
 	mib_type = SET_LOCAL_MIB_TYPE_LOCAL_MIB;
 	lldpmib = kzalloc(ICE_LLDPDU_SIZE, GFP_KERNEL);
 	if (!lldpmib) {
@@ -3495,9 +3489,9 @@ static int ice_init_interrupt_scheme(struct ice_pf *pf)
 		return vectors;
 
 	/* set up vector assignment tracking */
-	pf->irq_tracker =
-		devm_kzalloc(ice_pf_to_dev(pf), sizeof(*pf->irq_tracker) +
-			     (sizeof(u16) * vectors), GFP_KERNEL);
+	pf->irq_tracker = devm_kzalloc(ice_pf_to_dev(pf),
+				       struct_size(pf->irq_tracker, list, vectors),
+				       GFP_KERNEL);
 	if (!pf->irq_tracker) {
 		ice_dis_msix(pf);
 		return -ENOMEM;
@@ -6250,6 +6244,8 @@ const char *ice_stat_str(enum ice_status stat_err)
 		return "ICE_ERR_OUT_OF_RANGE";
 	case ICE_ERR_ALREADY_EXISTS:
 		return "ICE_ERR_ALREADY_EXISTS";
+	case ICE_ERR_NVM:
+		return "ICE_ERR_NVM";
 	case ICE_ERR_NVM_CHECKSUM:
 		return "ICE_ERR_NVM_CHECKSUM";
 	case ICE_ERR_BUF_TOO_SHORT:

drivers/net/ethernet/intel/ice/ice_nvm.h

@@ -4,6 +4,14 @@
 #ifndef _ICE_NVM_H_
 #define _ICE_NVM_H_
 
+struct ice_orom_civd_info {
+	u8 signature[4];	/* Must match ASCII '$CIV' characters */
+	u8 checksum;		/* Simple modulo 256 sum of all structure bytes must equal 0 */
+	__le32 combo_ver;	/* Combo Image Version number */
+	u8 combo_name_len;	/* Length of the unicode combo image version string, max of 32 */
+	__le16 combo_name[32];	/* Unicode string representing the Combo Image version */
+} __packed;
+
 enum ice_status
 ice_acquire_nvm(struct ice_hw *hw, enum ice_aq_res_access_type access);
 void ice_release_nvm(struct ice_hw *hw);
@@ -14,6 +22,12 @@ enum ice_status
 ice_get_pfa_module_tlv(struct ice_hw *hw, u16 *module_tlv, u16 *module_tlv_len,
 		       u16 module_type);
 enum ice_status
+ice_get_inactive_orom_ver(struct ice_hw *hw, struct ice_orom_info *orom);
+enum ice_status
+ice_get_inactive_nvm_ver(struct ice_hw *hw, struct ice_nvm_info *nvm);
+enum ice_status
+ice_get_inactive_netlist_ver(struct ice_hw *hw, struct ice_netlist_info *netlist);
+enum ice_status
 ice_read_pba_string(struct ice_hw *hw, u8 *pba_num, u32 pba_num_size);
 enum ice_status ice_init_nvm(struct ice_hw *hw);
 enum ice_status ice_read_sr_word(struct ice_hw *hw, u16 offset, u16 *data);

drivers/net/ethernet/intel/ice/ice_status.h

@@ -29,6 +29,7 @@ enum ice_status {
 	ICE_ERR_HW_TABLE			= -19,
 	ICE_ERR_FW_DDP_MISMATCH			= -20,
 
+	ICE_ERR_NVM				= -50,
 	ICE_ERR_NVM_CHECKSUM			= -51,
 	ICE_ERR_BUF_TOO_SHORT			= -52,
 	ICE_ERR_NVM_BLANK_MODE			= -53,

drivers/net/ethernet/intel/ice/ice_type.h

@@ -313,14 +313,62 @@ struct ice_orom_info {
 	u16 build;			/* Build version of OROM */
 };
 
-/* NVM Information */
+/* NVM version information */
 struct ice_nvm_info {
+	u32 eetrack;
+	u8 major;
+	u8 minor;
+};
+
+/* netlist version information */
+struct ice_netlist_info {
+	u32 major;			/* major high/low */
+	u32 minor;			/* minor high/low */
+	u32 type;			/* type high/low */
+	u32 rev;			/* revision high/low */
+	u32 hash;			/* SHA-1 hash word */
+	u16 cust_ver;			/* customer version */
+};
+
+/* Enumeration of possible flash banks for the NVM, OROM, and Netlist modules
+ * of the flash image.
+ */
+enum ice_flash_bank {
+	ICE_INVALID_FLASH_BANK,
+	ICE_1ST_FLASH_BANK,
+	ICE_2ND_FLASH_BANK,
+};
+
+/* Enumeration of which flash bank is desired to read from, either the active
+ * bank or the inactive bank. Used to abstract 1st and 2nd bank notion from
+ * code which just wants to read the active or inactive flash bank.
+ */
+enum ice_bank_select {
+	ICE_ACTIVE_FLASH_BANK,
+	ICE_INACTIVE_FLASH_BANK,
+};
+
+/* information for accessing NVM, OROM, and Netlist flash banks */
+struct ice_bank_info {
+	u32 nvm_ptr;				/* Pointer to 1st NVM bank */
+	u32 nvm_size;				/* Size of NVM bank */
+	u32 orom_ptr;				/* Pointer to 1st OROM bank */
+	u32 orom_size;				/* Size of OROM bank */
+	u32 netlist_ptr;			/* Pointer to 1st Netlist bank */
+	u32 netlist_size;			/* Size of Netlist bank */
+	enum ice_flash_bank nvm_bank;		/* Active NVM bank */
+	enum ice_flash_bank orom_bank;		/* Active OROM bank */
+	enum ice_flash_bank netlist_bank;	/* Active Netlist bank */
+};
+
+/* Flash Chip Information */
+struct ice_flash_info {
 	struct ice_orom_info orom;	/* Option ROM version info */
-	u32 eetrack;			/* NVM data version */
+	struct ice_nvm_info nvm;	/* NVM version information */
+	struct ice_netlist_info netlist;/* Netlist version info */
+	struct ice_bank_info banks;	/* Flash Bank information */
 	u16 sr_words;			/* Shadow RAM size in words */
 	u32 flash_size;			/* Size of available flash in bytes */
-	u8 major_ver;			/* major version of NVM package */
-	u8 minor_ver;			/* minor version of dev starter */
 	u8 blank_nvm_mode;		/* is NVM empty (no FW present) */
 };
 
@@ -348,16 +396,6 @@ struct ice_link_default_override_tlv {
 
 #define ICE_NVM_VER_LEN	32
 
-/* netlist version information */
-struct ice_netlist_ver_info {
-	u32 major;			/* major high/low */
-	u32 minor;			/* minor high/low */
-	u32 type;			/* type high/low */
-	u32 rev;			/* revision high/low */
-	u32 hash;			/* SHA-1 hash word */
-	u16 cust_ver;			/* customer version */
-};
-
 /* Max number of port to queue branches w.r.t topology */
 #define ICE_MAX_TRAFFIC_CLASS 8
 #define ICE_TXSCHED_MAX_BRANCHES ICE_MAX_TRAFFIC_CLASS
@@ -605,10 +643,9 @@ struct ice_hw {
 	u8 evb_veb;		/* true for VEB, false for VEPA */
 	u8 reset_ongoing;	/* true if HW is in reset, false otherwise */
 	struct ice_bus_info bus;
-	struct ice_nvm_info nvm;
+	struct ice_flash_info flash;
 	struct ice_hw_dev_caps dev_caps;	/* device capabilities */
 	struct ice_hw_func_caps func_caps;	/* function capabilities */
-	struct ice_netlist_ver_info netlist_ver; /* netlist version info */
 
 	struct ice_switch_info *switch_info;	/* switch filter lists */
 
@@ -765,6 +802,7 @@ struct ice_hw_port_stats {
 };
 
 /* Checksum and Shadow RAM pointers */
+#define ICE_SR_NVM_CTRL_WORD		0x00
 #define ICE_SR_BOOT_CFG_PTR		0x132
 #define ICE_SR_NVM_WOL_CFG		0x19
 #define ICE_NVM_OROM_VER_OFF		0x02
@@ -784,10 +822,71 @@ struct ice_hw_port_stats {
 #define ICE_OROM_VER_MASK		(0xff << ICE_OROM_VER_SHIFT)
 #define ICE_SR_PFA_PTR			0x40
 #define ICE_SR_1ST_NVM_BANK_PTR		0x42
+#define ICE_SR_NVM_BANK_SIZE		0x43
 #define ICE_SR_1ST_OROM_BANK_PTR	0x44
+#define ICE_SR_OROM_BANK_SIZE		0x45
 #define ICE_SR_NETLIST_BANK_PTR		0x46
+#define ICE_SR_NETLIST_BANK_SIZE	0x47
 #define ICE_SR_SECTOR_SIZE_IN_WORDS	0x800
 
+/* CSS Header words */
+#define ICE_NVM_CSS_SREV_L			0x14
+#define ICE_NVM_CSS_SREV_H			0x15
+
+/* Length of CSS header section in words */
+#define ICE_CSS_HEADER_LENGTH			330
+
+/* Offset of Shadow RAM copy in the NVM bank area. */
+#define ICE_NVM_SR_COPY_WORD_OFFSET		roundup(ICE_CSS_HEADER_LENGTH, 32)
+
+/* Size in bytes of Option ROM trailer */
+#define ICE_NVM_OROM_TRAILER_LENGTH		(2 * ICE_CSS_HEADER_LENGTH)
+
+/* The Link Topology Netlist section is stored as a series of words. It is
+ * stored in the NVM as a TLV, with the first two words containing the type
+ * and length.
+ */
+#define ICE_NETLIST_LINK_TOPO_MOD_ID		0x011B
+#define ICE_NETLIST_TYPE_OFFSET			0x0000
+#define ICE_NETLIST_LEN_OFFSET			0x0001
+
+/* The Link Topology section follows the TLV header. When reading the netlist
+ * using ice_read_netlist_module, we need to account for the 2-word TLV
+ * header.
+ */
+#define ICE_NETLIST_LINK_TOPO_OFFSET(n)		((n) + 2)
+
+#define ICE_LINK_TOPO_MODULE_LEN		ICE_NETLIST_LINK_TOPO_OFFSET(0x0000)
+#define ICE_LINK_TOPO_NODE_COUNT		ICE_NETLIST_LINK_TOPO_OFFSET(0x0001)
+
+#define ICE_LINK_TOPO_NODE_COUNT_M		ICE_M(0x3FF, 0)
+
+/* The Netlist ID Block is located after all of the Link Topology nodes. */
+#define ICE_NETLIST_ID_BLK_SIZE			0x30
+#define ICE_NETLIST_ID_BLK_OFFSET(n)		ICE_NETLIST_LINK_TOPO_OFFSET(0x0004 + 2 * (n))
+
+/* netlist ID block field offsets (word offsets) */
+#define ICE_NETLIST_ID_BLK_MAJOR_VER_LOW	0x02
+#define ICE_NETLIST_ID_BLK_MAJOR_VER_HIGH	0x03
+#define ICE_NETLIST_ID_BLK_MINOR_VER_LOW	0x04
+#define ICE_NETLIST_ID_BLK_MINOR_VER_HIGH	0x05
+#define ICE_NETLIST_ID_BLK_TYPE_LOW		0x06
+#define ICE_NETLIST_ID_BLK_TYPE_HIGH		0x07
+#define ICE_NETLIST_ID_BLK_REV_LOW		0x08
+#define ICE_NETLIST_ID_BLK_REV_HIGH		0x09
+#define ICE_NETLIST_ID_BLK_SHA_HASH_WORD(n)	(0x0A + (n))
+#define ICE_NETLIST_ID_BLK_CUST_VER		0x2F
+
+/* Auxiliary field, mask, and shift definition for Shadow RAM and NVM Flash */
+#define ICE_SR_CTRL_WORD_1_S		0x06
+#define ICE_SR_CTRL_WORD_1_M		(0x03 << ICE_SR_CTRL_WORD_1_S)
+#define ICE_SR_CTRL_WORD_VALID		0x1
+#define ICE_SR_CTRL_WORD_OROM_BANK	BIT(3)
+#define ICE_SR_CTRL_WORD_NETLIST_BANK	BIT(4)
+#define ICE_SR_CTRL_WORD_NVM_BANK	BIT(5)
+
+#define ICE_SR_NVM_PTR_4KB_UNITS	BIT(15)
+
 /* Link override related */
 #define ICE_SR_PFA_LINK_OVERRIDE_WORDS		10
 #define ICE_SR_PFA_LINK_OVERRIDE_PHY_WORDS	4