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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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![Linus Torvalds](/assets/img/avatar_default.png)
This is mostly updates to the usual drivers: ufs, qedf, mpt3sas, lpfc, xfcp, hisi_sas, cxlflash, qla2xxx. In the absence of Nic, we're also taking target updates which are mostly minor except for the tcmu refactor. The only real core change to worry about is the removal of high page bouncing (in sas, storvsc and iscsi). This has been well tested and no problems have shown up so far. Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com> -----BEGIN PGP SIGNATURE----- iJwEABMIAEQWIQTnYEDbdso9F2cI+arnQslM7pishQUCWx1pbCYcamFtZXMuYm90 dG9tbGV5QGhhbnNlbnBhcnRuZXJzaGlwLmNvbQAKCRDnQslM7pishUucAP42pccS ziKyiOizuxv9fZ4Q+nXd1A9zhI5tqqpkHjcQegEA40qiZSi3EKGKR8W0UpX7Ntmo tqrZJGojx9lnrAM2RbQ= =NMXg -----END PGP SIGNATURE----- Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI updates from James Bottomley: "This is mostly updates to the usual drivers: ufs, qedf, mpt3sas, lpfc, xfcp, hisi_sas, cxlflash, qla2xxx. In the absence of Nic, we're also taking target updates which are mostly minor except for the tcmu refactor. The only real core change to worry about is the removal of high page bouncing (in sas, storvsc and iscsi). This has been well tested and no problems have shown up so far" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (268 commits) scsi: lpfc: update driver version to 12.0.0.4 scsi: lpfc: Fix port initialization failure. scsi: lpfc: Fix 16gb hbas failing cq create. scsi: lpfc: Fix crash in blk_mq layer when executing modprobe -r lpfc scsi: lpfc: correct oversubscription of nvme io requests for an adapter scsi: lpfc: Fix MDS diagnostics failure (Rx < Tx) scsi: hisi_sas: Mark PHY as in reset for nexus reset scsi: hisi_sas: Fix return value when get_free_slot() failed scsi: hisi_sas: Terminate STP reject quickly for v2 hw scsi: hisi_sas: Add v2 hw force PHY function for internal ATA command scsi: hisi_sas: Include TMF elements in struct hisi_sas_slot scsi: hisi_sas: Try wait commands before before controller reset scsi: hisi_sas: Init disks after controller reset scsi: hisi_sas: Create a scsi_host_template per HW module scsi: hisi_sas: Reset disks when discovered scsi: hisi_sas: Add LED feature for v3 hw scsi: hisi_sas: Change common allocation mode of device id scsi: hisi_sas: change slot index allocation mode scsi: hisi_sas: Introduce hisi_sas_phy_set_linkrate() scsi: hisi_sas: fix a typo in hisi_sas_task_prep() ...
250 lines
6.8 KiB
C
250 lines
6.8 KiB
C
/*
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* QLogic FCoE Offload Driver
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* Copyright (c) 2016-2018 Cavium Inc.
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*
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* This software is available under the terms of the GNU General Public License
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* (GPL) Version 2, available from the file COPYING in the main directory of
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* this source tree.
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*/
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#include <linux/if_ether.h>
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#include <linux/if_vlan.h>
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#include "qedf.h"
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extern const struct qed_fcoe_ops *qed_ops;
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/*
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* FIP VLAN functions that will eventually move to libfcoe.
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*/
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void qedf_fcoe_send_vlan_req(struct qedf_ctx *qedf)
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{
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struct sk_buff *skb;
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char *eth_fr;
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int fr_len;
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struct fip_vlan *vlan;
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#define MY_FIP_ALL_FCF_MACS ((__u8[6]) { 1, 0x10, 0x18, 1, 0, 2 })
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static u8 my_fcoe_all_fcfs[ETH_ALEN] = MY_FIP_ALL_FCF_MACS;
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unsigned long flags = 0;
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skb = dev_alloc_skb(sizeof(struct fip_vlan));
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if (!skb)
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return;
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fr_len = sizeof(*vlan);
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eth_fr = (char *)skb->data;
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vlan = (struct fip_vlan *)eth_fr;
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memset(vlan, 0, sizeof(*vlan));
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ether_addr_copy(vlan->eth.h_source, qedf->mac);
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ether_addr_copy(vlan->eth.h_dest, my_fcoe_all_fcfs);
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vlan->eth.h_proto = htons(ETH_P_FIP);
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vlan->fip.fip_ver = FIP_VER_ENCAPS(FIP_VER);
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vlan->fip.fip_op = htons(FIP_OP_VLAN);
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vlan->fip.fip_subcode = FIP_SC_VL_REQ;
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vlan->fip.fip_dl_len = htons(sizeof(vlan->desc) / FIP_BPW);
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vlan->desc.mac.fd_desc.fip_dtype = FIP_DT_MAC;
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vlan->desc.mac.fd_desc.fip_dlen = sizeof(vlan->desc.mac) / FIP_BPW;
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ether_addr_copy(vlan->desc.mac.fd_mac, qedf->mac);
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vlan->desc.wwnn.fd_desc.fip_dtype = FIP_DT_NAME;
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vlan->desc.wwnn.fd_desc.fip_dlen = sizeof(vlan->desc.wwnn) / FIP_BPW;
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put_unaligned_be64(qedf->lport->wwnn, &vlan->desc.wwnn.fd_wwn);
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skb_put(skb, sizeof(*vlan));
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skb->protocol = htons(ETH_P_FIP);
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skb_reset_mac_header(skb);
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skb_reset_network_header(skb);
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QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "Sending FIP VLAN "
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"request.");
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if (atomic_read(&qedf->link_state) != QEDF_LINK_UP) {
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QEDF_WARN(&(qedf->dbg_ctx), "Cannot send vlan request "
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"because link is not up.\n");
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kfree_skb(skb);
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return;
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}
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set_bit(QED_LL2_XMIT_FLAGS_FIP_DISCOVERY, &flags);
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qed_ops->ll2->start_xmit(qedf->cdev, skb, flags);
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}
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static void qedf_fcoe_process_vlan_resp(struct qedf_ctx *qedf,
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struct sk_buff *skb)
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{
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struct fip_header *fiph;
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struct fip_desc *desc;
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u16 vid = 0;
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ssize_t rlen;
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size_t dlen;
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fiph = (struct fip_header *)(((void *)skb->data) + 2 * ETH_ALEN + 2);
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rlen = ntohs(fiph->fip_dl_len) * 4;
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desc = (struct fip_desc *)(fiph + 1);
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while (rlen > 0) {
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dlen = desc->fip_dlen * FIP_BPW;
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switch (desc->fip_dtype) {
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case FIP_DT_VLAN:
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vid = ntohs(((struct fip_vlan_desc *)desc)->fd_vlan);
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break;
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}
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desc = (struct fip_desc *)((char *)desc + dlen);
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rlen -= dlen;
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}
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QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "VLAN response, "
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"vid=0x%x.\n", vid);
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if (vid > 0 && qedf->vlan_id != vid) {
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qedf_set_vlan_id(qedf, vid);
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/* Inform waiter that it's ok to call fcoe_ctlr_link up() */
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if (!completion_done(&qedf->fipvlan_compl))
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complete(&qedf->fipvlan_compl);
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}
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}
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void qedf_fip_send(struct fcoe_ctlr *fip, struct sk_buff *skb)
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{
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struct qedf_ctx *qedf = container_of(fip, struct qedf_ctx, ctlr);
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struct ethhdr *eth_hdr;
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struct fip_header *fiph;
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u16 op, vlan_tci = 0;
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u8 sub;
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if (!test_bit(QEDF_LL2_STARTED, &qedf->flags)) {
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QEDF_WARN(&(qedf->dbg_ctx), "LL2 not started\n");
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kfree_skb(skb);
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return;
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}
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fiph = (struct fip_header *) ((void *)skb->data + 2 * ETH_ALEN + 2);
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eth_hdr = (struct ethhdr *)skb_mac_header(skb);
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op = ntohs(fiph->fip_op);
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sub = fiph->fip_subcode;
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/*
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* Add VLAN tag to non-offload FIP frame based on current stored VLAN
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* for FIP/FCoE traffic.
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*/
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__vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), qedf->vlan_id);
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/* Get VLAN ID from skb for printing purposes */
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__vlan_hwaccel_get_tag(skb, &vlan_tci);
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QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2, "FIP frame send: "
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"dest=%pM op=%x sub=%x vlan=%04x.", eth_hdr->h_dest, op, sub,
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vlan_tci);
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if (qedf_dump_frames)
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print_hex_dump(KERN_WARNING, "fip ", DUMP_PREFIX_OFFSET, 16, 1,
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skb->data, skb->len, false);
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qed_ops->ll2->start_xmit(qedf->cdev, skb, 0);
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}
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/* Process incoming FIP frames. */
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void qedf_fip_recv(struct qedf_ctx *qedf, struct sk_buff *skb)
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{
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struct ethhdr *eth_hdr;
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struct fip_header *fiph;
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struct fip_desc *desc;
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struct fip_mac_desc *mp;
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struct fip_wwn_desc *wp;
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struct fip_vn_desc *vp;
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size_t rlen, dlen;
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u16 op;
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u8 sub;
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bool do_reset = false;
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eth_hdr = (struct ethhdr *)skb_mac_header(skb);
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fiph = (struct fip_header *) ((void *)skb->data + 2 * ETH_ALEN + 2);
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op = ntohs(fiph->fip_op);
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sub = fiph->fip_subcode;
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QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2, "FIP frame received: "
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"skb=%p fiph=%p source=%pM op=%x sub=%x", skb, fiph,
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eth_hdr->h_source, op, sub);
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if (qedf_dump_frames)
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print_hex_dump(KERN_WARNING, "fip ", DUMP_PREFIX_OFFSET, 16, 1,
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skb->data, skb->len, false);
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/* Handle FIP VLAN resp in the driver */
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if (op == FIP_OP_VLAN && sub == FIP_SC_VL_NOTE) {
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qedf_fcoe_process_vlan_resp(qedf, skb);
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kfree_skb(skb);
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} else if (op == FIP_OP_CTRL && sub == FIP_SC_CLR_VLINK) {
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QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "Clear virtual "
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"link received.\n");
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/* Check that an FCF has been selected by fcoe */
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if (qedf->ctlr.sel_fcf == NULL) {
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QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
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"Dropping CVL since FCF has not been selected "
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"yet.");
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kfree_skb(skb);
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return;
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}
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/*
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* We need to loop through the CVL descriptors to determine
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* if we want to reset the fcoe link
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*/
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rlen = ntohs(fiph->fip_dl_len) * FIP_BPW;
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desc = (struct fip_desc *)(fiph + 1);
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while (rlen >= sizeof(*desc)) {
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dlen = desc->fip_dlen * FIP_BPW;
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switch (desc->fip_dtype) {
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case FIP_DT_MAC:
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mp = (struct fip_mac_desc *)desc;
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QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2,
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"fd_mac=%pM\n", mp->fd_mac);
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if (ether_addr_equal(mp->fd_mac,
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qedf->ctlr.sel_fcf->fcf_mac))
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do_reset = true;
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break;
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case FIP_DT_NAME:
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wp = (struct fip_wwn_desc *)desc;
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QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2,
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"fc_wwpn=%016llx.\n",
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get_unaligned_be64(&wp->fd_wwn));
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break;
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case FIP_DT_VN_ID:
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vp = (struct fip_vn_desc *)desc;
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QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2,
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"fd_fc_id=%x.\n", ntoh24(vp->fd_fc_id));
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if (ntoh24(vp->fd_fc_id) ==
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qedf->lport->port_id)
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do_reset = true;
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break;
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default:
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/* Ignore anything else */
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break;
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}
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desc = (struct fip_desc *)((char *)desc + dlen);
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rlen -= dlen;
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}
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QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2,
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"do_reset=%d.\n", do_reset);
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if (do_reset) {
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fcoe_ctlr_link_down(&qedf->ctlr);
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qedf_wait_for_upload(qedf);
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fcoe_ctlr_link_up(&qedf->ctlr);
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}
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kfree_skb(skb);
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} else {
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/* Everything else is handled by libfcoe */
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__skb_pull(skb, ETH_HLEN);
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fcoe_ctlr_recv(&qedf->ctlr, skb);
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}
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}
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u8 *qedf_get_src_mac(struct fc_lport *lport)
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{
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struct qedf_ctx *qedf = lport_priv(lport);
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return qedf->data_src_addr;
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}
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